diff --git a/app/Repositories/Botanic/Varieties.php b/app/Repositories/Botanic/Varieties.php
index 60790f72..8ac08216 100644
--- a/app/Repositories/Botanic/Varieties.php
+++ b/app/Repositories/Botanic/Varieties.php
@@ -65,6 +65,9 @@ class Varieties
     {
         $images = $data['images'] ?? false;
         $tags = $data['tags'] ?? false;
+        if (! array_key_exists('plus', $data) || $data['plus'] === null) {
+            $data['plus'] = '';
+        }
         unset($data['images']);
         unset($data['tags']);
         $variety = self::store($data);