diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 3d5f6813b..143bc3398 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -475,10 +475,6 @@ Rails/I18nLocaleAssignment:
   Exclude:
     - 'spec/features/locale_spec.rb'
 
-# Offense count: 40
-Rails/I18nLocaleTexts:
-  Enabled: false
-
 # Offense count: 1
 # Configuration parameters: IgnoreScopes.
 Rails/InverseOf:
diff --git a/app/controllers/admin/crop_companions_controller.rb b/app/controllers/admin/crop_companions_controller.rb
index 1ca9122a8..b21841b11 100644
--- a/app/controllers/admin/crop_companions_controller.rb
+++ b/app/controllers/admin/crop_companions_controller.rb
@@ -15,7 +15,7 @@ module Admin
     def create
       @crop_companion = @crop.crop_companions.new(crop_companion_params)
       if @crop_companion.save
-        redirect_to admin_crop_crop_companions_path(@crop), notice: 'Companion was successfully created.'
+        redirect_to admin_crop_crop_companions_path(@crop), notice: t('crop_companions.created')
       else
         render :new
       end
@@ -24,7 +24,7 @@ module Admin
     def destroy
       @crop_companion = @crop.crop_companions.find(params[:id])
       @crop_companion.destroy
-      redirect_to admin_crop_crop_companions_path(@crop), notice: 'Companion was successfully destroyed.'
+      redirect_to admin_crop_crop_companions_path(@crop), notice: t('crop_companions.deleted')
     end
 
     private
diff --git a/app/controllers/admin/versions_controller.rb b/app/controllers/admin/versions_controller.rb
index ff2691642..bd37a95e5 100644
--- a/app/controllers/admin/versions_controller.rb
+++ b/app/controllers/admin/versions_controller.rb
@@ -9,9 +9,9 @@ module Admin
       @version = PaperTrail::Version.find(params[:id])
       @object = @version.reify
       if @object.save
-        redirect_to admin_crops_path, notice: "Reverted to version from #{@version.created_at.strftime('%B %d, %Y')}"
+        redirect_to admin_crops_path, notice: t('messages.revert_success', date: @version.created_at.strftime('%B %d, %Y'))
       else
-        redirect_to admin_crops_path, alert: "Could not revert to version from #{@version.created_at.strftime('%B %d, %Y')}. Errors: #{@object.errors.full_messages.to_sentence}"
+        redirect_to admin_crops_path, alert: t('messages.revert_error', date: @version.created_at.strftime('%B %d, %Y'), errors: @object.errors.full_messages.to_sentence)
       end
     end
 
diff --git a/app/controllers/alternate_names_controller.rb b/app/controllers/alternate_names_controller.rb
index d95b1667c..4c975cab8 100644
--- a/app/controllers/alternate_names_controller.rb
+++ b/app/controllers/alternate_names_controller.rb
@@ -30,7 +30,7 @@ class AlternateNamesController < ApplicationController
     @alternate_name = AlternateName.new(alternate_name_params)
 
     if @alternate_name.save
-      redirect_to @alternate_name.crop, notice: 'Alternate name was successfully created.'
+      redirect_to @alternate_name.crop, notice: t('alternate_names.created')
     else
       render action: "new"
     end
@@ -40,7 +40,7 @@ class AlternateNamesController < ApplicationController
   # PUT /alternate_names/1.json
   def update
     if @alternate_name.update(alternate_name_params)
-      redirect_to @alternate_name.crop, notice: 'Alternate name was successfully updated.'
+      redirect_to @alternate_name.crop, notice: t('alternate_names.updated')
     else
       render action: "edit"
     end
@@ -51,7 +51,7 @@ class AlternateNamesController < ApplicationController
   def destroy
     @crop = @alternate_name.crop
     @alternate_name.destroy
-    redirect_to @crop, notice: 'Alternate name was successfully deleted.'
+    redirect_to @crop, notice: t('alternate_names.deleted')
   end
 
   private
diff --git a/app/controllers/authentications_controller.rb b/app/controllers/authentications_controller.rb
index f3588cbdf..e8c03abbd 100644
--- a/app/controllers/authentications_controller.rb
+++ b/app/controllers/authentications_controller.rb
@@ -24,9 +24,9 @@ class AuthenticationsController < ApplicationController
           name:
         )
 
-      flash[:notice] = "Authentication successful."
+      flash[:notice] = t('messages.auth_success')
     else
-      flash[:notice] = "Authentication failed."
+      flash[:notice] = t('messages.auth_failed')
     end
     redirect_to request.env['omniauth.origin'] || edit_member_registration_path
   end
diff --git a/app/controllers/follows_controller.rb b/app/controllers/follows_controller.rb
index 35bc3199f..94eff7680 100644
--- a/app/controllers/follows_controller.rb
+++ b/app/controllers/follows_controller.rb
@@ -13,9 +13,9 @@ class FollowsController < ApplicationController
     @follow = current_member.follows.build(followed: Member.find(params[:followed]))
 
     if @follow.save
-      flash[:notice] = "Followed #{@follow.followed.login_name}"
+      flash[:notice] = t('messages.followed', name: @follow.followed.login_name)
     else
-      flash[:error] = "Already following or error while following."
+      flash[:error] = t('messages.follow_error')
     end
     redirect_back_or_to(root_path)
   end
@@ -25,7 +25,7 @@ class FollowsController < ApplicationController
     @unfollowed = @follow.followed
     @follow.destroy
 
-    flash[:notice] = "Unfollowed #{@unfollowed.login_name}"
+    flash[:notice] = t('messages.unfollowed', name: @unfollowed.login_name)
     redirect_to @unfollowed
   end
 
diff --git a/app/controllers/forums_controller.rb b/app/controllers/forums_controller.rb
index bc75da5fa..179c96c69 100644
--- a/app/controllers/forums_controller.rb
+++ b/app/controllers/forums_controller.rb
@@ -32,14 +32,14 @@ class ForumsController < ApplicationController
   # POST /forums.json
   def create
     @forum = Forum.new(forum_params)
-    flash[:notice] = 'Forum was successfully created.' if @forum.save
+    flash[:notice] = t('forums.created') if @forum.save
     respond_with(@forum)
   end
 
   # PUT /forums/1
   # PUT /forums/1.json
   def update
-    flash[:notice] = 'Forum was successfully updated.' if @forum.update(forum_params)
+    flash[:notice] = t('forums.updated') if @forum.update(forum_params)
     respond_with(@forum)
   end
 
@@ -47,7 +47,7 @@ class ForumsController < ApplicationController
   # DELETE /forums/1.json
   def destroy
     @forum.destroy
-    flash[:notice] = 'Forum was successfully deleted'
+    flash[:notice] = t('forums.deleted')
     redirect_to forums_url
   end
 
diff --git a/app/controllers/likes_controller.rb b/app/controllers/likes_controller.rb
index 3093ce42e..b205ec220 100644
--- a/app/controllers/likes_controller.rb
+++ b/app/controllers/likes_controller.rb
@@ -14,7 +14,7 @@ class LikesController < ApplicationController
       @like.likeable.reindex(refresh: true)
       success(@like, liked_by_member: true, status_code: :created)
     else
-      failed(@like, message: 'Unable to like')
+      failed(@like, message: t('messages.unable_to_like'))
     end
   end
 
@@ -29,7 +29,7 @@ class LikesController < ApplicationController
       @like.likeable.reindex(refresh: true)
       success(@like, liked_by_member: false, status_code: :ok)
     else
-      failed(@like, message: 'Unable to unlike')
+      failed(@like, message: t('messages.unable_to_unlike'))
     end
   end
 
diff --git a/app/controllers/omniauth_callbacks_controller.rb b/app/controllers/omniauth_callbacks_controller.rb
index 0d55de038..f4394d8a3 100644
--- a/app/controllers/omniauth_callbacks_controller.rb
+++ b/app/controllers/omniauth_callbacks_controller.rb
@@ -10,7 +10,7 @@ require './lib/actions/oauth_signup_action'
 #
 class OmniauthCallbacksController < Devise::OmniauthCallbacksController
   def failure
-    flash[:alert] = "Authentication failed."
+    flash[:alert] = t('messages.auth_failed')
     redirect_to request.env['omniauth.origin'] || "/"
   end
 
diff --git a/app/controllers/places_controller.rb b/app/controllers/places_controller.rb
index a30c1ae98..cfec33fa4 100644
--- a/app/controllers/places_controller.rb
+++ b/app/controllers/places_controller.rb
@@ -33,7 +33,7 @@ class PlacesController < ApplicationController
 
   def search
     if params[:new_place].empty?
-      redirect_to places_path, alert: 'Please enter a valid location'
+      redirect_to places_path, alert: t('messages.invalid_location')
     else
       redirect_to place_path(params[:new_place])
     end
diff --git a/app/controllers/plantings_controller.rb b/app/controllers/plantings_controller.rb
index a696e9c03..bc443fe8e 100644
--- a/app/controllers/plantings_controller.rb
+++ b/app/controllers/plantings_controller.rb
@@ -116,11 +116,11 @@ class PlantingsController < DataController
     new_planting.finished_at = nil
 
     if new_planting.save
-      redirect_to edit_planting_path(new_planting), notice: 'Planting was successfully transplanted.'
+      redirect_to edit_planting_path(new_planting), notice: t('messages.transplant_success')
     else
       # if the save fails, we should probably roll back the finishing of the original planting
       @planting.update(finished: false, finished_at: nil)
-      redirect_to @planting, alert: "There was an error transplanting the planting: #{new_planting.errors.full_messages.to_sentence}"
+      redirect_to @planting, alert: t('messages.transplant_error', errors: new_planting.errors.full_messages.to_sentence)
     end
   end
 
diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index b1affe635..01239a601 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -29,17 +29,17 @@ class PostsController < ApplicationController
   def create
     params[:post][:author_id] = current_member.id
     @post = Post.new(post_params)
-    flash[:notice] = 'Post was successfully created.' if @post.save
+    flash[:notice] = t('posts.created') if @post.save
     respond_with(@post)
   end
 
   def update
-    flash[:notice] = 'Post was successfully updated.' if @post.update(post_params)
+    flash[:notice] = t('posts.updated') if @post.update(post_params)
     respond_with(@post)
   end
 
   def destroy
-    flash[:notice] = 'Post was deleted.' if @post.destroy
+    flash[:notice] = t('posts.deleted') if @post.destroy
     respond_with(@post)
   end
 
diff --git a/app/controllers/scientific_names_controller.rb b/app/controllers/scientific_names_controller.rb
index d815de94a..525563235 100644
--- a/app/controllers/scientific_names_controller.rb
+++ b/app/controllers/scientific_names_controller.rb
@@ -54,7 +54,7 @@ class ScientificNamesController < ApplicationController
   def destroy
     @crop = @scientific_name.crop
     @scientific_name.destroy
-    flash[:notice] = 'Scientific name was successfully deleted.'
+    flash[:notice] = t('scientific_names.deleted')
     respond_with(@crop)
   end
 
diff --git a/app/controllers/seeds_controller.rb b/app/controllers/seeds_controller.rb
index 6dd2741cd..46e00c0cc 100644
--- a/app/controllers/seeds_controller.rb
+++ b/app/controllers/seeds_controller.rb
@@ -61,7 +61,7 @@ class SeedsController < DataController
     @seed.finished ||= false
     @seed.owner = current_member
     @seed.crop = @seed.parent_planting.crop if @seed.parent_planting
-    flash[:notice] = "Successfully added #{@seed.crop} seed to your stash." if @seed.save
+    flash[:notice] = t('seeds.added_to_stash', crop: @seed.crop) if @seed.save
     if params[:return] == 'planting'
       respond_with(@seed, location: @seed.parent_planting)
     else
@@ -70,7 +70,7 @@ class SeedsController < DataController
   end
 
   def update
-    flash[:notice] = 'Seed was successfully updated.' if @seed.update(seed_params)
+    flash[:notice] = t('seeds.updated') if @seed.update(seed_params)
     respond_with(@seed)
   end
 
diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 47063d75d..fb5d0f226 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -5,7 +5,7 @@ class SessionsController < Devise::SessionsController
 
   def create
     super do |_resource|
-      flash[:alert] = "There are crops waiting to be wrangled." if Crop.pending_approval.present? && current_member.role?(:crop_wrangler)
+      flash[:alert] = t('messages.crops_waiting') if Crop.pending_approval.present? && current_member.role?(:crop_wrangler)
     end
   end
 end
diff --git a/app/models/crop.rb b/app/models/crop.rb
index b04eb3325..351ed0ae7 100644
--- a/app/models/crop.rb
+++ b/app/models/crop.rb
@@ -57,13 +57,13 @@ class Crop < ApplicationRecord
   validates :en_wikipedia_url,
             format: {
               with:    %r{\Ahttps?://en\.wikipedia\.org/wiki/[[:alnum:]%_.()-]+\z},
-              message: 'is not a valid English Wikipedia URL'
+              message: :not_a_valid_wikipedia_url
             },
             if:     :approved?
   validates :en_youtube_url,
             format: {
               with:    %r{\A(?:https?://)?(?:www\.)?(?:youtube(?:-nocookie)?\.com/(?:(?:v|e(?:mbed)?)/|\S*?[?&]v=)|youtu\.be/)[a-zA-Z0-9_-]{11}(?:[?&]\S*)?\z},
-              message: 'is not a valid YouTube URL'
+              message: :not_a_valid_youtube_url
             },
             allow_blank: true
   validates :name, uniqueness: { scope: :approval_status }, if: :pending?
@@ -190,12 +190,12 @@ class Crop < ApplicationRecord
     return if rejected?
     return unless reason_for_rejection.present? || rejection_notes.present?
 
-    errors.add(:approval_status, "must be rejected if a reason for rejection is present")
+    errors.add(:approval_status, :rejection_reason_required)
   end
 
   def must_have_meaningful_reason_for_rejection
     return unless reason_for_rejection == "other" && rejection_notes.blank?
 
-    errors.add(:rejection_notes, "must be added if the reason for rejection is \"other\"")
+    errors.add(:rejection_notes, :rejection_notes_required)
   end
 end
diff --git a/app/models/garden.rb b/app/models/garden.rb
index 5d3f04adb..ac55b5ffa 100644
--- a/app/models/garden.rb
+++ b/app/models/garden.rb
@@ -32,7 +32,7 @@ class Garden < ApplicationRecord
 
   validates :name, uniqueness: { scope: :owner_id }
   validates :name,
-            format: { without: /\n/, message: "must contain no newlines" },
+            format: { without: /\n/, message: :no_newlines },
             allow_blank: false, presence: true,
             length: { maximum: 255 }
 
@@ -53,7 +53,7 @@ class Garden < ApplicationRecord
     "acres"         => "acre"
   }.freeze
   validates :area_unit, inclusion:   { in:      AREA_UNITS_VALUES.values,
-                                       message: "%<value>s is not a valid area unit" },
+                                       message: :not_a_valid_area_unit },
                         allow_blank: true
 
   def cleanup_area
diff --git a/app/models/garden_collaborator.rb b/app/models/garden_collaborator.rb
index 520303437..7604ad286 100644
--- a/app/models/garden_collaborator.rb
+++ b/app/models/garden_collaborator.rb
@@ -11,7 +11,7 @@ class GardenCollaborator < ApplicationRecord
     return unless member
     return unless garden
 
-    errors.add(:member_id, "cannot be the garden owner") if garden.owner == member
+    errors.add(:member_id, :cannot_be_garden_owner) if garden.owner == member
   end
 
   def member_slug
diff --git a/app/models/harvest.rb b/app/models/harvest.rb
index 7fba64bc8..92ed0f6eb 100644
--- a/app/models/harvest.rb
+++ b/app/models/harvest.rb
@@ -58,18 +58,18 @@ class Harvest < ApplicationRecord
   ##
   ## Validations
   validates :crop, approved: true
-  validates :crop, presence: { message: "must be present and exist in our database" }
-  validates :plant_part, presence: { message: "must be present and exist in our database" }
+  validates :crop, presence: { message: :crop_not_found }
+  validates :plant_part, presence: { message: :crop_not_found }
   validates :harvested_at, presence: true
   validates :quantity, allow_nil: true, numericality: {
     only_integer: false, greater_than_or_equal_to: 0
   }
   validates :unit, allow_blank: true, inclusion: {
-    in: UNITS_VALUES.values, message: "%<value>s is not a valid unit"
+    in: UNITS_VALUES.values, message: :not_a_valid_unit
   }
   validates :weight_quantity, allow_nil: true, numericality: { only_integer: false }
   validates :weight_unit, allow_blank: true, inclusion: {
-    in: WEIGHT_UNITS_VALUES.values, message: "%<value>s is not a valid unit"
+    in: WEIGHT_UNITS_VALUES.values, message: :not_a_valid_unit
   }
   validate :crop_must_match_planting
   validate :owner_must_match_planting
@@ -147,7 +147,7 @@ class Harvest < ApplicationRecord
   def crop_must_match_planting
     return if planting.blank? # only check if we are linked to a planting
 
-    errors.add(:planting, "must be the same crop") unless crop == planting.crop
+    errors.add(:planting, :same_crop_required) unless crop == planting.crop
   end
 
   def owner_must_match_planting
@@ -155,14 +155,13 @@ class Harvest < ApplicationRecord
 
     return if owner == planting.owner || planting.garden.garden_collaborators.where(member_id: owner).any?
 
-    errors.add(:owner,
-               "of harvest must be the same as planting, or a collaborator on that garden")
+    errors.add(:owner, :same_owner_required)
   end
 
   def harvest_must_be_after_planting
     # only check if we are linked to a planting
     return unless harvested_at.present? && planting.present? && planting.planted_at.present?
 
-    errors.add(:planting, "cannot be harvested before planting") unless harvested_at > planting.planted_at
+    errors.add(:planting, :harvest_after_planted) unless harvested_at > planting.planted_at
   end
 end
diff --git a/app/models/member.rb b/app/models/member.rb
index 3bfcf9d7c..a6503c940 100644
--- a/app/models/member.rb
+++ b/app/models/member.rb
@@ -96,21 +96,21 @@ class Member < ApplicationRecord
   validates :tos_agreement, acceptance: { allow_nil: true, accept: true }
   validates :login_name,
             length:     {
-              minimum: 2, maximum: 25, message: "should be between 2 and 25 characters long"
+              minimum: 2, maximum: 25, message: :login_name_length
             },
             exclusion:  {
-              in: %w(growstuff admin moderator staff nearby), message: "name is reserved"
+              in: %w(growstuff admin moderator staff nearby), message: :login_name_reserved
             },
             format:     {
-              with: /\A\w+\z/, message: "may only include letters, numbers, or underscores"
+              with: /\A\w+\z/, message: :login_name_format
             },
             uniqueness: {
               case_sensitive: false
             }
-  validates :website_url, format: { with: %r{\Ahttps?://}, message: "must start with http:// or https://" }, allow_blank: true
-  validates :other_url, format: { with: %r{\Ahttps?://}, message: "must start with http:// or https://" }, allow_blank: true
+  validates :website_url, format: { with: %r{\Ahttps?://}, message: :url_format }, allow_blank: true
+  validates :other_url, format: { with: %r{\Ahttps?://}, message: :url_format }, allow_blank: true
   validates :instagram_handle, :facebook_handle, :bluesky_handle,
-            format: { without: %r{\Ahttps?://|/}, message: "should be a handle, not a URL" }, allow_blank: true
+            format: { without: %r{\Ahttps?://|/}, message: :handle_format }, allow_blank: true
 
   #
   # Triggers
diff --git a/app/models/photo_association.rb b/app/models/photo_association.rb
index 6e9ad47e7..7197cfb71 100644
--- a/app/models/photo_association.rb
+++ b/app/models/photo_association.rb
@@ -29,12 +29,12 @@ class PhotoAssociation < ApplicationRecord
   def photo_and_item_have_same_owner
     return if photographable_type == 'Crop'
 
-    errors.add(:photo, "must have same owner as item it links to") unless photographable.owner_id == photo.owner_id
+    errors.add(:photo, :photo_owner_mismatch) unless photographable.owner_id == photo.owner_id
   end
 
   def crop_present
     return unless %w(Planting Seed Harvest).include?(photographable_type)
 
-    errors.add(:crop_id, "failed to calculate crop") if crop_id.blank?
+    errors.add(:crop_id, :calculate_crop_failed) if crop_id.blank?
   end
 end
diff --git a/app/models/planting.rb b/app/models/planting.rb
index 7cc82c731..05ecc99ec 100644
--- a/app/models/planting.rb
+++ b/app/models/planting.rb
@@ -72,7 +72,7 @@ class Planting < ApplicationRecord
   ##
   ## Validations
   validates :garden, presence: true
-  validates :crop, presence: true, approved: { message: "must be present and exist in our database" }
+  validates :crop, presence: true, approved: { message: :crop_must_be_approved }
   validate :finished_must_be_after_planted
   validate :owner_must_match_garden_owner
   validate :cannot_be_finished_and_failed
@@ -80,10 +80,10 @@ class Planting < ApplicationRecord
     only_integer: true, greater_than_or_equal_to: 0
   }
   validates :sunniness, allow_blank: true, inclusion: {
-    in: SUNNINESS_VALUES, message: "%<value>s is not a valid sunniness value"
+    in: SUNNINESS_VALUES, message: :not_a_valid_sunniness
   }
   validates :planted_from, allow_blank: true, inclusion: {
-    in: PLANTED_FROM_VALUES, message: "%<value>s is not a valid planting method"
+    in: PLANTED_FROM_VALUES, message: :not_a_valid_planting_method
   }
   validates :overall_rating, allow_blank: true, numericality: {
     only_integer: true, greater_than_or_equal_to: 1, less_than_or_equal_to: 5
@@ -132,20 +132,19 @@ class Planting < ApplicationRecord
   private
 
   def cannot_be_finished_and_failed
-    errors.add(:failed, "can't be true if planting is also finished") if finished && failed
+    errors.add(:failed, :failed_and_finished) if finished && failed
   end
 
   # check that any finished_at date occurs after planted_at
   def finished_must_be_after_planted
     return unless planted_at && finished_at # only check if we have both
 
-    errors.add(:finished_at, "must be after the planting date") unless planted_at < finished_at
+    errors.add(:finished_at, :finished_after_planted) unless planted_at < finished_at
   end
 
   def owner_must_match_garden_owner
     return if owner == garden.owner || garden.garden_collaborators.where(member_id: owner).any?
 
-    errors.add(:owner,
-               "must be the same as garden, or a collaborator on that garden")
+    errors.add(:owner, :same_owner_required)
   end
 end
diff --git a/app/models/seed.rb b/app/models/seed.rb
index 090c8f022..d3d8fb47d 100644
--- a/app/models/seed.rb
+++ b/app/models/seed.rb
@@ -28,7 +28,7 @@ class Seed < ApplicationRecord
   #
   # Validations
   validates :crop, approved: true
-  validates :crop, presence: { message: "must be present and exist in our database" }
+  validates :crop, presence: { message: :crop_not_found }
   validates :quantity, allow_nil:    true,
                        numericality: { only_integer: true, greater_than_or_equal_to: 0 }
   validates :days_until_maturity_min, allow_nil:    true,
@@ -36,20 +36,15 @@ class Seed < ApplicationRecord
   validates :days_until_maturity_max, allow_nil:    true,
                                       numericality: { only_integer: true, greater_than_or_equal_to: 0 }
   validates :tradable_to, allow_blank: false,
-                          inclusion:   { in: TRADABLE_TO_VALUES, message: "You may only trade seed nowhere, " \
-                                                                          "locally, nationally, or internationally" }
+                          inclusion:   { in: TRADABLE_TO_VALUES, message: :tradable_to_inclusion }
   validates :organic, allow_blank: false,
-                      inclusion:   { in: ORGANIC_VALUES, message: "You must say whether the seeds " \
-                                                                  "are organic or not, or that you don't know" }
+                      inclusion:   { in: ORGANIC_VALUES, message: :organic_inclusion }
   validates :gmo, allow_blank: false,
-                  inclusion:   { in: GMO_VALUES, message: "You must say whether the seeds are " \
-                                                          "genetically modified or not, or that you don't know" }
+                  inclusion:   { in: GMO_VALUES, message: :gmo_inclusion }
   validates :heirloom, allow_blank: false,
-                       inclusion:   { in: HEIRLOOM_VALUES, message: "You must say whether the seeds" \
-                                                                    "are heirloom, hybrid, or unknown" }
+                       inclusion:   { in: HEIRLOOM_VALUES, message: :heirloom_inclusion }
   validates :source, allow_blank: true,
-                     inclusion:   { in: SOURCE_VALUES, message: "You must say where the seeds are from," \
-                                                                "or that you don't know" }
+                     inclusion:   { in: SOURCE_VALUES, message: :source_inclusion }
 
   #
   # Delegations
diff --git a/config/locales/en.yml b/config/locales/en.yml
index d0a141d10..8885271fc 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -63,6 +63,56 @@ en:
       seed:
         one: seed
         other: seeds
+    errors:
+      messages:
+        crop_not_found: must be present and exist in our database
+        crop_must_be_approved: must be present and exist in our database
+        failed_and_finished: "can't be true if planting is also finished"
+        finished_after_planted: must be after the planting date
+        rejection_reason_required: must be rejected if a reason for rejection is present
+        rejection_notes_required: "must be added if the reason for rejection is \"other\""
+        same_crop_required: must be the same crop
+        harvest_after_planted: cannot be harvested before planting
+        cannot_be_garden_owner: cannot be the garden owner
+        same_owner_required: "of harvest must be the same as planting, or a collaborator on that garden"
+        photo_owner_mismatch: must have same owner as item it links to
+        calculate_crop_failed: failed to calculate crop
+        not_a_valid_wikipedia_url: is not a valid English Wikipedia URL
+        not_a_valid_youtube_url: is not a valid YouTube URL
+        not_a_valid_sunniness: "%{value} is not a valid sunniness value"
+        not_a_valid_planting_method: "%{value} is not a valid planting method"
+        not_a_valid_unit: "%{value} is not a valid unit"
+        not_a_valid_area_unit: "%{value} is not a valid area unit"
+        no_newlines: must contain no newlines
+      models:
+        member:
+          attributes:
+            login_name:
+              login_name_length: should be between 2 and 25 characters long
+              login_name_reserved: name is reserved
+              login_name_format: may only include letters, numbers, or underscores
+            website_url:
+              url_format: "must start with http:// or https://"
+            other_url:
+              url_format: "must start with http:// or https://"
+            instagram_handle:
+              handle_format: should be a handle, not a URL
+            facebook_handle:
+              handle_format: should be a handle, not a URL
+            bluesky_handle:
+              handle_format: should be a handle, not a URL
+        seed:
+          attributes:
+            tradable_to:
+              tradable_to_inclusion: "You may only trade seed nowhere, locally, nationally, or internationally"
+            organic:
+              organic_inclusion: "You must say whether the seeds are organic or not, or that you don't know"
+            gmo:
+              gmo_inclusion: "You must say whether the seeds are genetically modified or not, or that you don't know"
+            heirloom:
+              heirloom_inclusion: "You must say whether the seeds are heirloom, hybrid, or unknown"
+            source:
+              source_inclusion: "You must say where the seeds are from, or that you don't know"
   application_helper:
     title:
       title:
@@ -112,6 +162,9 @@ en:
   forums:
     index:
       title: Forums
+    created: Forum was successfully created.
+    updated: Forum was successfully updated.
+    deleted: Forum was successfully deleted.
   gardens:
     created: Garden was successfully created.
     deleted: Garden was successfully deleted.
@@ -208,6 +261,8 @@ en:
       trade_to: Will trade to
       unspecified: unspecified
       view_all: View all seeds
+    added_to_stash: Successfully added %{crop} seed to your stash.
+    updated: Seed was successfully updated.
     stats:
       member_linktext: "%{count} members"
       message_html: So far, %{member} have planted %{number_crops} %{number_plantings} in %{number_gardens}; and %{contributors} people have contributed to our code on %{github}!
@@ -275,6 +330,21 @@ en:
   links:
     my_gardens: My gardens
 
+  messages:
+    auth_success: Authentication successful.
+    auth_failed: Authentication failed.
+    crops_waiting: There are crops waiting to be wrangled.
+    followed: "Followed %{name}"
+    unfollowed: "Unfollowed %{name}"
+    follow_error: Already following or error while following.
+    transplant_success: Planting was successfully transplanted.
+    transplant_error: "There was an error transplanting the planting: %{errors}"
+    revert_success: "Reverted to version from %{date}"
+    revert_error: "Could not revert to version from %{date}. Errors: %{errors}"
+    invalid_location: Please enter a valid location
+    unable_to_like: Unable to like
+    unable_to_unlike: Unable to unlike
+
   members:
     edit_profile: Edit profile
     index:
@@ -342,10 +412,22 @@ en:
       progress_0_not_planted_yet: 'Progress: 0% - not planted yet'
   posts:
     write_blog_post: Write blog post
+    created: Post was successfully created.
+    updated: Post was successfully updated.
+    deleted: Post was deleted.
     index:
       title:
         author_posts: "%{author} posts"
         default: Everyone's posts
+  scientific_names:
+    deleted: Scientific name was successfully deleted.
+  alternate_names:
+    created: Alternate name was successfully created.
+    updated: Alternate name was successfully updated.
+    deleted: Alternate name was successfully deleted.
+  crop_companions:
+    created: Companion was successfully created.
+    deleted: Companion was successfully destroyed.
   seeds:
     form:
       trade_help: >
@@ -361,6 +443,7 @@ en:
         owner_seeds: "%{owner} seeds"
     save_seeds: Save seeds
     string: "%{crop} seeds belonging to %{owner}"
+    added_to_stash: Successfully added %{crop} seed to your stash.
   unauthorized:
     create:
       all: Please sign in or sign up to create a %{subject}.