non flowering cosmos

shirley cowan asked 13 years ago

I sowed cosmos from seed this year and succeeded in growing three plants! They were a reasonable height but didn’t flower. I had them in a planter not directly in the ground to try and keep the slugs away. Is that the reason? TaShirley

1 Answers

Gerry Daly Staff answered 4 years ago
Cosmos are generally easy enough to grow and thrive best when sown in mid-March and planted out into open soil. Or they can be sown directly outdoors in late April.

It may be that you sowed the seeds very late and they have not got around to flowering or they are shaded and development has been slow. They might still flower.