Erigeron speciosus Darkest of All
Darkest of All Fleabane
Details24-28" 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.
|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, Morning Sun & Afternoon Shade|
|Flower Color||Blue, Purple|
|Mature Height||24-28" tall|
|Mature Spread||18-24" wide|
|Ships As||Potted Plant|
|Planting Time||Spring / Summer, Fall|
|Soil Type||Clay Soil, Sandy Soil, Average Soil|
|Amount of Rain||10 to 20", 20 to 30", 30 to 40"|
|Advantages||Deer Resistant, Attract Butterflies, Easy to grow, Good for Cut Flowers, Good Rockgarden or alpine plant, Low Maintenance|
|Ideal Region||Anywhere In The US, Northeast, Midwest, Southwest, West, Pacific Northwest|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Hawaii, Alaska & Canada||No|
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.
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.
Plant Shipping: Buy now and we will ship your order at the ideal planting time for your region. Expected ship week will display on the cart at checkout after you enter your zip code. Spring-Planted Perennial and Bulb orders will ship from Feb 25 through mid-June, warmest zones first.
Most plant and bulb orders arrive within 2-6 days, or less, of leaving our greenhouses in Colorado. This prompt delivery is provided without additional express charges.
Grass Plugs Will ship at planting time in spring, beginning in late February.
Wildflower Seed & Grass Seed Orders ship within 2-3 days.
Standard shipping costs are $4.99 and up, depending on the size of the order.
Make Fast Even Faster: For ‘Rush’ same week delivery, please call customer service at 800-925-9387.
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Comments about High Country Gardens Erigeron speciosus Darkest of All:
I'm at 3500' elevation in AZ. I love the wildflower called spreading fleabane that grows all over my yard and had to try this. It also had to take full sun, temps a few days over 100 deg F and take watering near the grass 3 times per week. It passed all tests and near time to flower now. Can't wait to see them for the 1st time!
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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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