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A remarkable native (TX) perennial, Silver Ironweed is a standout where ever it's planted. The upright stems of long, thin silver-white foliage and late summer display of bright pink, butterfly-attracting flowers. This heat-loving beauty needs limey soils and dry growing conditions.
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).
36-48" tall x 18-24" wide. A remarkable native perennial, Silver Ironweed is a standout where ever it's planted. The upright stems of long, thin silver-white foliage and late summer display of bright pink, butterfly attracting flowers are unlike any other plant currently in cultivation. Rarely found in cultivation outside of TX, this heat-loving beauty needs limey soils and dry growing conditions. A somewhat slow grower, it seems to establish a deep root system before growing a lot of stems and leaves. Leave standing for winter interest and cut its herbaceous stems to the ground each spring. Thanks to Lauren and Scott Ogden for seed collected near the Davis Mts. of west TX. Plant with Yucca and Agave. (seed/cutting propagated).
More Information
SKU
HC015231
Item Package Size
Plant - 5" Deep Pot
Common Name
Silver Ironweed
Botanical Name
Vernonia lindheimeri v. leucophylla
Zones
6, 7, 8, 9, 10
Light Requirements
Full Sun
Flower Color
Pink, Silver
Mature Height
36-48" tall
Mature Spread
18-24" wide
Bloom Time
Late summer to fall
Ships As
Potted Plant
Soil Type
Low Fertility Soil, Well-Drained Soil
Soil Moisture
Waterwise
Advantages
Bee Friendly, Attract Butterflies, Deer Resistant, Native, Multiplies / Naturalizes, Good Rockgarden Or Alpine Plant, Rabbit Resistant
Special Groups
High Country Gardens Exclusive
Ideal Region
West, Western Only, Southwest
Planting Time
Spring / Summer, Fall
Native To
North America
Ships To Canada
No
Planting Guides
Vernonia (Ironweed) is big genus of New World wildflowers, with most species native to North America. Members of the Aster family, they are important late season sources of nectar for butterflies.
Preferred growing conditions:
Plant in most soil types including clay.
Best positioned in a full sun to partial shade locations.
Mulch with common mulch materials in dry Western climates. Leave un-mulched in moister Eastern climates.
Water regularly the first growing season to establish the plant. Most species and varieties like moderately moist to wet soils and should receive regular irrigation in arid climates. Rainfall is generally sufficient in moist Eastern climates.
Vernonia lindheimeri v. leucophylla is xeric and should be only given occasional deep watering when conditions are dry.
Deadhead the flowers when blooming is finished. Many species from the Midwest and Eastern US will re-seed aggressively in moist soils. Deadheading is helpful to reduce volunteer seedlings.
Fertilize lightly in the fall with Yum Yum Mix.
Special comments:
Leave standing of the winter and cut back hard in early to mid-spring.
Tall species may need staking unless stem tips are pinched back in late spring/early summer to thicken up the plant's stem structure.
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
Shipping
No longer available this season.
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. Some perennials are shipped as potted plants, some as perennial roots packed in peat. The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.
Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.
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 perennial, Silver Ironweed is a standout where ever it's planted. The upright stems of long, thin silver-white foliage and late summer display of bright pink, butterfly-attracting flowers. This heat-loving beauty needs limey soils and dry growing conditions.)
