Vernonia lettermanii Iron Butterfly

Iron Butterfly Ironweed

Iron Butterfly is a showy selection of Letterman's Ironweed, a native wildflower from Arkansas. This densely branched perennial has bright green, finely textured foliage and bright violet-purple flowers in late summer. Attracts butterflies and bees galore. Drought resistant/drought tolerant plant (xeric).
Zones 4 - 9
Advantages
Deer Resistant
Attract Butterflies
Bee Friendly
Rabbit Resistant
Native
Rock Gardens
Multiplies / Naturalizes
Light Requirements
Full Sun
Annual Rainfall 10 to 20", 20 to 30", 30 to 40" (with care)
Mature Plant Size 24-36" tall , 18-24" wide
Bloom TimeSummer
Shipping Shipping begins the week of February 25th, 2019 Learn More…
Size Plant - 5" Pot
SKUHC014744

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).

Find Your Planting Zone:

You have entered an invalid zip code, please check your zip code and try again.

Regular Price $12.99 Sale $10.39
Per Plant - 5" Pot
You save: 21%
In stock
SKU
HC014744

Video

   
Details
24-36" x 18-24" wide. Here is a distinctive, new-to-cultivation native perennial that provides both flower color and foliar texture in the garden. Selected as a more compact version of a little known wildflower species from Arkansas, Iron Butterfly is a densely branched perennial with finely textured, almost thread-like foliage and bright violet-purple flowers capping the stems in late summer-early fall. A rich source of natural nectar, the plant is extremely attractive to butterflies.
More Information
SKU
HC014744
Ships To Canada
No
Common Name
Iron Butterfly Ironweed
Botanical Name
Vernonia lettermanii Iron Butterfly
Zones
4, 5, 6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Purple
Height
36 inches
Mature Height
24-36" tall
Mature Spread
18-24" wide
Bloom Time
Early - Mid Summer, Mid - Late Summer
Bloom Time
Summer
Ships As
Potted Plant
Planting Time
Spring / Summer, Fall
Soil Type
Low Fertility Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40" (with care)
Advantages
Deer Resistant, Attract Butterflies, Bee Friendly, Rabbit Resistant, Native, Rock Gardens, Multiplies / Naturalizes
Ideal Region
Anywhere In The US
Item Package Size
Plant - 5" Pot
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
ZoneShipping Status
Zone 2Shipping begins the week of May 20th, 2019
Zone 3Shipping begins the week of May 20th, 2019
Zone 4Shipping begins the week of May 20th, 2019
Zone 5Shipping begins the week of April 29th, 2019
Zone 6Shipping begins the week of April 15th, 2019
Zone 7Shipping begins the week of March 25th, 2019
Zone 8Shipping begins the week of March 4th, 2019
Zone 9Shipping begins the week of February 25th, 2019
Zone 10Shipping begins the week of February 25th, 2019
Reviews
Q & A

Suggested Companion Plants: