Plant Care Flax-Leaf Aster

Flax-Leaf Aster

About Flax-Leaf Aster

The Stiff Aster is an excellent addition to the rock garden. It is native to eastern North America. It prefers acid soils in mixed woods of hickory, pine, and oak. Flowers blooming late summer into fall are mostly blue-purple to white, that may mature to red with a yellow center.


Ionactis linariifolia

Also known as

flax-leaf ankle-aster, flaxleaf whitetop and aster

How to care for Flax-Leaf Aster


How often to water your Flax-Leaf Aster

Water needs for Flax-Leaf Aster
0.5 cups
every 9

Flax-Leaf Aster 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.

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 Flax-Leaf Aster in your home

Light needs and placement for plant Flax-Leaf Aster: 1ft from a window
1ft or less from
a window

Flax-Leaf Aster love being close to bright, sunny windows 😎.

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

Flax-Leaf Aster does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Flax-Leaf Aster in your home 🏡.


How to fertilize Flax-Leaf Aster

Nutrient, fertilizer, and repotting needs for Flax-Leaf Aster: 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 Flax-Leaf Aster after it doubles in size or once a year—whichever comes first.

Difficulty Level

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

Water Needs
Sunlight Needs
Growing Outdoors

Care Summary for Flax-Leaf Aster

Flax-Leaf Aster

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.

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