Among other things, their strong characteristics are they can endure bad soil conditions and they can take on a period of heat and drought.
And so taking care of them is not very demanding on you. Still, you have to know how to take care of cosmos flowers in the right way. And we’ll show you how.
Growing Cosmos Flowers
Cosmos flowers are lovely annual plants, and they do a lot of growing in one season. Unlike perennials, annual plants die after winter and don’t grow back.
Their blooming period is from summer through fall, and they can typically be planted in May when the aggressive frost has stopped.
They prefer full sun exposure for at least half a day. Amazingly, they can deal with intense heat, as opposed to other flowering plants.
After all, they’re very used to that in their blistering hot and arid native habitat in Central America and Mexico.
While you can plant or place them in a partially shaded spot, their growth won’t be as fast and flower-productive.
Now, we mentioned earlier that they’re not picky in terms of soil. However, purchase or choose one that’s not too rich because this will encourage leafy growth and reduce flower blooms.
Watering cosmos regularly is needed at first. But after they’ve established or adapted to the soil, so to speak, you need only water them when they experience dry spells.
And fertilizing them is not recommended. They are strong enough to grow without its aid; in fact, feeding them too much fertilizer will cause them to produce fewer flowers.
Other Care Tips for Cosmos
Because cosmos produce seeds or seedlings themselves, these can produce weeds that can become invasive. So aim to remove these flowers during spring to prevent that from happening.
Moreover, if you see any faded or wilted flowers, remove them to keep the plant neat and promote new growth of branches and flowers.
Pruning them is also important because cosmos plants can grow overly tall (up to six feet) and lose balance as a result. For this, carefully cut off their excess branches or stem ends.
In some cases, they will still be unbalanced. And so using stakes or building a fence for them will offer the necessary support the plants need.
Also, as winter comes around, make sure not to leave them outside, as they’ll die. If they’re potted, you should get them inside, but let them gradually acclimate to their new environment to avoid shocking them.
You can do this by putting them under a growing lamp for about seven hours per day. Blooms will form again, but they should be cut off soon.
In springtime, they’ll flower again and produce and drop their seeds. And that’ll be the end of their life cycle.