Posted: 02/07/2015 at 00:23
Are you muddling home-made compost with shop-bought compost? They are not the same. It must have cost a fortune to lay down 1 foot of shop-bought compost.
Shop-bought compost contains very little fertilizer, not that such small sunflowers need fertilizer yet.
The main thing with sunflowers is to protect them from slugs.