flowerbug
Sustainability Master
i try to grow these often because any time they are flowering they are usually busy with a lot of different types of bees and other nectar feeders. i'm writing of the yellow, orange, reddish tinted flowers/mix you can often find at the store for not much $.
they are planted once the ground warms up (for us that is mid May to later May) and they start blooming about a month to six weeks later (i've actually never kept track of how many days between planting and flowering but this seems about right in my guesstimate). they will flower right up until it gets too cold for them (a hard frost will knock them back, let them dry for a few weeks).
they give off tons of seeds too. very spiky seeds so be careful grabbing them. they'll stick in cotton gloves and go through socks without a problem and hurt if you stick yourself hard with them, but you can usually manage to harvest them barehanded without sticking yourself if you don't squeeze hard.
unlke the other cosmos these will easily reproduce for our area and length of season. the other cosmos we grow (white, pink and red flowers with a more frondy habit to the leaves/growth) do not finish soon enough to give many seeds.
they are planted once the ground warms up (for us that is mid May to later May) and they start blooming about a month to six weeks later (i've actually never kept track of how many days between planting and flowering but this seems about right in my guesstimate). they will flower right up until it gets too cold for them (a hard frost will knock them back, let them dry for a few weeks).
they give off tons of seeds too. very spiky seeds so be careful grabbing them. they'll stick in cotton gloves and go through socks without a problem and hurt if you stick yourself hard with them, but you can usually manage to harvest them barehanded without sticking yourself if you don't squeeze hard.
unlke the other cosmos these will easily reproduce for our area and length of season. the other cosmos we grow (white, pink and red flowers with a more frondy habit to the leaves/growth) do not finish soon enough to give many seeds.