Sign up for our newsletter
Gardening in the Rainy Zone.
Pronounced: ASS-ter lat-er-ih-FLOOR-us
Sunset zones: All (Western).
USDA zones: 4-8.
Height: 24 inches (60 cm).
Width: 12 inches (30 cm).
Midsummer to mid-autumn.
Small ½-inch white flowers with pink centers, born along one side of the stem.
Tiny-toothed green leaves that turn coppery in the fall.
Clump forming perennial.
Moist, fertile soil.
Mulch with compost or composted manure in fall. Fertilize with a complete organic fertilizer in spring and again in early summer.
Sow seed in spring or fall at 68°F (20°C). | Divide plants in spring.
Cut back plants to half in early summer to promote bushiness. (I let the slugs do this for me.)
Pests and diseases:
Slugs and snails may eat young growth.
Rainy Side Notes
Aster lateriflorus is not difficult to start from seed. Start seed in autumn and over winter in pots in a cold frame or greenhouse, or sow in spring. This plant looks good in front of large, dark foliage to contrast with the small light flowers.
Although recommended for partial shade, here in the Pacific Northwest you can grow them in full sun. This aster tends to seed around like a weed, so if you do not want to be pulling this plant out, deadhead the spent flowers.
Grow this aster as a forage plant for the butterflies and bees.
Photographed in author's garden.
Perennials indexed by botanical names. Click on corresponding letter below.