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USDA Plant Hardiness Zones

To help gardeners understand which plants will grow well for them, the entire USA has been segmented into ‘Plant Hardiness Zones’. Knowing your zone number is helpful when shopping for plants because:

  • Cold-area gardeners can avoid buying plants that simply won’t survive their lowest winter temperatures.
  • Warm-area gardeners can steer clear of plants that need a period of cold weather in order to bloom again.
Find your Plant Hardiness Zone here.
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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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Light Requirements
  1. Full Sun (4)
  2. Morning Sun & Afternoon Shade (2)
Planting Time
  1. Spring / Summer (5)
  2. Fall (5)
Flower Color
Height (Mature)
Up to 12" tall 36-60" tall Up to 12" tall to 36-60" tall
Bloom Time
  1. Late Spring - Early Summer (1)
  2. Early - Mid Summer (2)
  3. Mid - Late Summer (4)
  4. Early - Mid Fall (4)
Ideal Region
  1. Anywhere In The US (3)
  2. Hot Desert (1)
  3. Northeast (3)
  4. Southeast (1)
  5. Midwest (3)
  6. Southwest (2)
  7. West (3)
  8. Pacific Northwest (3)
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Advantages
  1. Deer Resistant (2)
  2. Attract Butterflies (4)
  3. Bee Friendly (4)
  4. Rabbit Resistant (1)
  5. Squirrel Resistant (1)
  6. Easy to grow (1)
  7. Fragrant Flower / Foliage (1)
  8. Native (4)
  9. Extended Bloom Time (more than 4 weeks) (1)
  10. Low Maintenance (1)
  11. Multiplies / Naturalizes (1)
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Soil Type
  1. Clay Soil (3)
  2. Sandy Soil (4)
  3. Average Soil (4)
  4. Low Fertility Soil (2)
  5. Well-Drained Soil (3)
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Amount of Rain
  1. Less than 10" (with irrigation) (2)
  2. 10 to 20" (5)
  3. 20 to 30" (5)
  4. 30 to 40" (5)
  5. 40 to 50" (2)
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Perennials

Aster

Zones 4-8 | | Blooming Late Summer - Fall

From the Greek word for 'star', Asters can be counted on to bring color to the garden in late summer and fall, with their daisy-like blooms. Asters come in many heights and can be used in rock gardens, wildflower gardens or perennial borders. These plants like well-drained soil and tend to be very cold hardy. Asters are easy-to-grow in most soils and are an essential source of fall nectar and pollen for bees and butterflies.

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Perennials

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We’re sorry, but the following items are currently unavailable

The following items are either out of season or we’ve sold out of our inventory. Please feel free to browse our selection and sign up for our newsletter to be notified when these products are available for next season! We often have similar items available, so please utilize our search or filters (on the left) to explore other options. Or, call us at (800) 925-9387 for help.

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