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Flat Top Aster Seeds

White Flat Top Aster Seeds, Aster umbellatus, Flat Top Aster
per Packet
Most orders ship within 48 hours or less. Learn More…

A tall (to 7') aster for semi-shade, great in a woodland garden. Daisy like-white flowers top every stem. Perennial.

Zones 3 - 8
Hummingbirds & Butterflies
Hummingbirds & Butterflies
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 24-60" tall
Bloom Time Late summer to fall
Size Packet

Plant Information

This pure white (with yellow center) aster can be stunning in late summer and fall when it opens its clusters of bright flowers atop tall stems in dark woods. This is a great plant for a forest woodline, or any woodland clearing. Leaves are attractive and lance-shaped.
Common Name Flat Top Aster
Botanical Name Aster umbellatus
Seed Life Cycle Perennials
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color White
Mature Height 24-60" tall
Bloom Time Late summer to fall
Ships As Seed
Seeds Per Pound 1072000
Seeds Per Packet 200
Soil Moisture Average, Moist/Wet, Well Draining
Soil Type Sandy Soil, Loamy Soil, Clay Soil, Moist/Wet Soil
Ideal Region Northeast, Southeast, Midwest, Southwest, West, Pacific Northwest
Zones 3, 4, 5, 6, 7, 8
Advantages Hummingbirds & Butterflies
Is It Storable? Yes- You can store your seed in any cool (not freezing) dry place that is not subject to extreme temperature variations.
Non-GMO Yes
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada Yes


Most orders ship within 48 hours or less.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Orders for in-season products ship within 48 hours or less. Depending upon your order date, we may hold your shipment to combine it with other products on your order, if applicable. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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Reviewsby PowerReviews


by PowerReviews
American MeadowsFlat Top Aster Seeds

(based on 1 review)

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Reviewed by 1 customer

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(0 of 1 customers found this review helpful)


Waste of Money


from Des Moines, IA

Verified Reviewer

Comments about American Meadows Flat Top Aster Seeds:

I planted these along our back fence underneath some large trees with occasional sunlight. i was hoping to create a barrier between our dogs and the dogs of the house that backs up to our yard.
Nothing ever grew. That's about all there is to it - extremely disappointing.

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USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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