diff --git a/app/views/plantings/_form.html.haml b/app/views/plantings/_form.html.haml
index c8d1bfe5e..fbc94c54d 100644
--- a/app/views/plantings/_form.html.haml
+++ b/app/views/plantings/_form.html.haml
@@ -44,7 +44,7 @@
         .col-md-4
           = f.select(:sunniness, Planting::SUNNINESS_VALUES, { include_blank: '', label: 'Sun or shade?' } )
         .col-md-4
-          = f.number_field :quantity, label: 'How many?'
+          = f.number_field :quantity, label: 'How many?', min: 1
       = f.text_area :description, rows: 6, label: 'Tell us more about it'
 
       .row