diff --git a/mods/plants/init.lua b/mods/plants/init.lua
index b14c55c..b699154 100644
--- a/mods/plants/init.lua
+++ b/mods/plants/init.lua
@@ -85,7 +85,9 @@ function plants.register_grass(name, desc)
          local node = minetest.get_node(pos)
          local meta = minetest.get_meta(pos)
          local name = meta:get_string('flower')
-         minetest.set_node(pos, {name = 'plants:'..name, param2 = node.param2})
+         if name ~= '' then
+            minetest.set_node(pos, {name = 'plants:'..name, param2 = node.param2})
+         end
       end,
    })
    for i = 2, 5 do