Rudbeckia Henry Eilers

Henry Eilers Quilled Brown Eye Susan

Henry Eilers is an unusual native wildflower blooming in late summer with clusters of distinctly quilled petals of light yellow. A tall, robust grower, it lives happily at the back of the border looking over the other perennals. Drought resistant/drought tolerant plant (xeric).
Zones5 - 7
Advantages
Attract Butterflies
Deer Resistant
Fragrant
Light Requirements
Full Sun
Morning Sun & Afternoon Shade
Annual Rainfall
10 to 20"
20 to 30"
30 to 40" (with care)
Mature Height4-5' tall
Mature Spread18-24" wide
Bloom TimeEarly summer to mid fall
SizeNo
SKU82930

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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SKU
82930

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Details
4-5' tall x 18-24" wide. A remarkable late 20th century discovery made by Henry Eilers, this unusual native plant was found growing in an Illinois prairie remnant along an abandoned rail road track. A towering perennial once mature, the plant blooms in late summer with numerous clusters of distinctly quilled, light-yellow petaled flowers. The foliage releases a mild anise fragrance when brushed. Great cut flower too! Compost Enriched Garden Loam Plant with Sedum 'Autumn Fire', Prairie Switch Grass.
More Information
SKU82930
Common Name
Henry Eilers Quilled Brown Eye Susan
Botanical Name
Rudbeckia Henry Eilers
Zones
5, 6, 7
Light Requirements
Full Sun, Morning Sun & Afternoon Shade
Mature Height
4-5' tall
Mature Spread
18-24" wide
Bloom Time
Early summer to mid fall
Ships As
Potted Plant
Soil Type
Average Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40" (with care)
Advantages
Attract Butterflies, Deer Resistant, Fragrant
Ideal Region
Anywhere In The US
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Item Unit Of Measure
Plant
Ships To Canada
No
Planting Guides
Rudbeckia (Black-Eyed Susan) - a genus of North American wildflowers known for their showy yellow coneflowers. Most species are perennial, but Rudbeckia. hirta and all the showy cultivars are biennial, growing only leaves and stems the first season and blooming the following year.

Preferred growing conditions
  • Plant in most soil types including clay. Rudbeckia prefers to be planted in a full to partial sun locations.
  • Mulch with common mulching materials except of moisture climates where plants should remain un-mulched.
  • Irrigate regularly the first growing season to establish the plants. Black Eyed Susan likes dry to moderately moist soil conditions and should be given weekly supplemental irrigation in arid Western climates. Rainfall is generally sufficient in moister eastern climates.
  • Deadheading will help to keep the plants blooming longer into the late summer. But leave the last flush of flowers on the plants to set seeds
  • Fertilize lightly in the fall with a half and half blend of Yum Yum Mix and good quality compost.
  • Special comments
  • Seeds are enjoyed by seed eating songbirds. Plants with seed heads should be left standing over the winter months. Cut back hard in early to mid-spring. Biennial Rudbeckia hirta should be selectively cut back to remove dead foliage in mid-spring to prepare the plants for flowering later in summer.
  • Rudbeckia generally don't need to be divided.

  • 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.
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