Aster flowers are perennials with star-shaped flower heads, often mistaken for daisies. When other flowers begin to fade in late summer and early fall, that’s when aster flowers will bloom and bring beautiful color to your garden. Today we’ll show you how to grow aster flowers in your garden, care for them, and harvest them.

How to Grow Aster Flowers in Your Garden

pink aster flowers

Aster flowers are perfect for wall garden, wildflower gardens, or next to a hedge. They grow from about 8-9 inches tall and will look amazing in any garden.

Planting Aster Flowers:

  • Aster flowers like cooler summers, especially cooler nights.
  • Prepare to plant your asters in early to mid spring and fertilize the soil prior to planting.
  • Plant them in a spot with partial to full sun.
  • Plant your aster flowers in well drained, moist, and humus rich soil.
  • You can certainly grow aster flowers from seeds, but it is rather tricky as they don’t always germinate. You can start the seeds indoors in the winter and keep them in the refrigerator for 4-6 weeks. After 4-6 weeks, move the seeds to a sunny spot. Place the seeds about 1 inch deep.
  • Space your aster flowers 1-3 feet apart.
  • After planting, give your flower lots of water and add mulch to keep the roots cool and retain moisture.

Caring for Aster Flowers:

aster flowers

  • Add a thin layer of compost and a 2 inch layer of mulch around your aster flowers every spring.
  • Make sure they receive about an inch of water per week, especially during warm summers.
  • If you’re growing the tall varieties, you can stake them so they don’t topple over.
  • Cut your aster flowers back in the winter after the foliage has died.
  • Divide your flowers every 2-3 years to keep them healthy and vibrant.

Happy Planting!

How to Grow Aster Flowers