Species false aster
White flowers and yellow anthers on green stems surrounded by green foliage.

false aster

Kalimeris pinnatifida

False aster (Kalimeris pinnatifida) is a clump-forming perennial with attractive, finely-divided foliage and daisy-like flowers in shades from white to pale blue that bloom in summer. It grows up to 1.5 m tall and requires no extra care beyond annual division and a light trim in spring. The flowers are popular with butterflies and the foliage looks great in cut flower arrangements. False aster does best in sunny locations with well-drained soil and requires no fertilizer or special attention. This easy-care plant is an excellent addition to beds, borders, and containers.

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Seed Propagation,Cutting,Division,Layering Propagation

Hardiness Zone:

4 - 8

Flowers:

White Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Invasive:

Yes

Care Level:

Medium

watering

False aster should be watered on a weekly basis, providing about 1 to 1.5 inches of moisture at each watering. Water slowly and deeply to allow the soil to absorb all of the water. False asers prefer moist, but not soggy, soil. Allow the soil to dry out slightly between waterings to prevent root rot. In hot weather, it may be necessary to water the false aster twice a week.

sunlight

False aster plants grow best when placed in an area that receives full sun. They should receive at least 6 to 8 hours of direct sunlight each day for best growth and flower production. When grown in an area with too much shade, false aster plants may not be as flourishing or produce as many blooms. In cooler climates, filtered sun or partial shade can be beneficial for the plant, as full sunlight can be too intense when temperatures soar. It is best to provide the plant with the least amount of sun and shade necessary to ensure it is adequately nourished and produces full blooms. When placed in the right sun exposure, false aster plants should begin to bloom with white or pink star-shaped flowers from late summer into autumn.

pruning

False aster (Kalimeris pinnatifida) requires minimal pruning and mainly just to shape the plant and remove any dead flower heads. The best time to prune is in early spring just before new growth begins. When pruning, it is important to avoid cutting the tray shoots or cutting too deeply into the plant as these will reduce flowering for the season. Instead, make sure to cut just above a set of leaves, making sure not to leave a stub. If needed, false aster can be lightly sheared back after flowering in early summer to reduce its size. In general, this species does not require much pruning.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Kalimeris pinnatifida typically starts flowering in late spring, usually in May or June.

Starts Flowering

Kalimeris pinnatifida typically starts flowering in late spring, usually in May or June.

Hardiness Map