4.0 out of 5 (2 experiences)
Also known as
Chocolate Cosmos, Chocolate Cosmos and Black Dahlia
How to care for Black Cosmos
Black Cosmos needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Black Cosmos love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Black Cosmos does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Black Cosmos in your home 🏡.
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Black Cosmos after it doubles in size or once a year—whichever comes first.