Erigeron speciosus Darkest of All

Darkest of All Fleabane

24-28" tall x 18-24" wide. 'Darkest of All' has large, blue-purple flowers that cover the plant in early summer. A vigorous and easy-to-grow perennial, its butterfly attracting flowers are outstanding.
Zones4 - 10
Light Requirements
Full Sun
Mature Height24-28" tall
Mature Spread18-24" wide
Bloom TimeSummer
ShippingNo longer available this season. Learn More…
SizePlant - 5" Deep Pot
SKUHC015222

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
HC015222

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Details
24-28" tall x 18-24" wide. 'Darkest of All' has large, blue-purple flowers that cover the plant in early summer. A vigorous and easy-to-grow perennial, its butterfly attracting flowers are outstanding. Individual flowers are 2 to 2 1/2" across.
More Information
SKUHC015222
Item Package Size
Plant - 5" Deep Pot
Common Name
Darkest of All Fleabane
Botanical Name
Erigeron speciosus 'Darkest of All'
Zones
4, 5, 6, 7, 8, 9, 10
Light Requirements
Full Sun
Flower Color
Blue, Purple
Mature Height
24-28" tall
Mature Spread
18-24" wide
Bloom Time
Summer
Ships As
Potted Plant
Ideal Region
West
Planting Time
Fall
Ships To Canada
No
Planting Guides

Growing Fleabane (Erigeron)

Erigeron is a widely distributed genus that can be found worldwide in dry mountainous and grassland areas. The greatest concentration of the species occurs in North America.

Preferred growing conditions:

  • Plant in "lean" sandy, gravelly or garden loam soils. Avoid clay. Place in full sun.
  • Mulching is beneficial in the arid Western US using crushed gravel, pine needles or other coarse, non-water absorbent mulch material.
  • Fleabane appreciates regular irrigation their first growing season to establish themselves. Infrequent deep watering is fine from the second growing season and beyond. They won't need much if any extra water in the Eastern US.
  • Fertilize lightly in fall with Yum Yum Mix/compost blend.

Special comments:

Deadheading is not needed. Some species are somewhat short-lived and plants should be encouraged to re-seed themselves by allowing the fluffy seed heads to ripen and disperse.


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, there is no additional shipping charge. 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 (800) 925-9387 or contact us by email.

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