Plant Care Callistephus


5.0 out of 5 (3 experiences)

Callistephus has a Blooms easily plant personality Blooms easily
Callistephus has a Fast grower plant personality Fast grower

About Callistephus

Callistephus chinensis, or China aster, is a cool weather annual with many cultivars and colors to choose from. It grows easily in rich, moist, well-drained soils in full sun to part shade. China aster displays showy, 3-5-inch diameter blooms from early summer to fall. It can be prone to aphids, spider mites, leafhoppers, wilt, or stem rot.


Callistephus chinensis

Also known as

Giant Crego Aster, Giant Crego Aster, China aster and Annual aster

How to care for Callistephus


How often to water your Callistephus

Water needs for Callistephus
0.5 cups
every 9

Callistephus 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.

Calculate water needs of Callistephus

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Giant Crego Aster in your home

Light needs and placement for plant Callistephus: 1ft from a window
1ft or less from
a window

Callistephus love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Callistephus does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Callistephus in your home 🏡.


How to fertilize Callistephus

Nutrient, fertilizer, and repotting needs for Callistephus: repot after 2X growth

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 Callistephus after it doubles in size or once a year—whichever comes first.

Difficulty Level

Callistephus is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Callistephus



Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

What other plant parents say

Callistephus has a Blooms easily plant personality Blooms easily 3
Callistephus has a Fast grower plant personality Fast grower 1
Callistephus has a Large, lush leaves plant personality Large, lush leaves 1
Isabellem avatar
leaf-1 43 Plants
xp 1,278 XP
globe Kitimat, British Columbia

So easy to care for! So pretty and smells yummy too! Need to repot but can’t bring myself too! I love how the pot matches the flowers🐯💛

Fast grower Fast grower
Large, lush leaves Large, lush leaves
Blooms easily Blooms easily

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