Sweet peas not flowering
I grew sweet peas for the first time in March - pinched them out, fed them with tomato food in the ground, put them in a sunny site, watered them. They grew like mad and made lots of leafy growth and tendrils everywhere but I had very few flowers. I cut off the flowers that did come carefully to stop seedpods developing but still very few flowers developed. Where did I go wrong? Variety was Matecuna. Thank you for any help.