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All media depicts mature plants.

Giant Coneflower (Rudbeckia)

PERENNIAL

Description

  • Really is giant, growing 5-7 feet tall!
  • Massive flowers attract pollinators far and wide.
  • Provides interest in late fall and winter with seedheads. 
  • Easy to grow, deer resistant, and tolerant to many soils.
  • Zones 4-9, sun to part sun, 5-7 feet tall and 3 feet wide at maturity.
Zone 4-9
Light part sun/sun
very tall

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Hand-picked at our greenhouse

Shipped to your door

Arrives as young plant

background image

More Information

Description Rudbeckia maxima (or giant coneflower, Dumbo ears, cabbage-leaf coneflower, swamp coneflower, and great coneflower) has many names for a good reason. It's called "giant coneflower" because it reaches epic proportions, growing 5-7 feet tall with massive flowers. It blooms above huge powdery blue basal foliage, which resembles Dumbo's ears or cabbage leaves. It's easy to grow in difficult sites, and while it prefers good drainage, it can handle wet soils, which is why it's lovingly called swamp coneflower. These features make it a pretty great perennial, so the name "great coneflower" comes naturally.

It's pollinator-friendly, attracting butterflies, bees, and hummingbirds in summer and birds in the fall as the flowers give way to seedheads. It's also deer resistant and tolerant of a wide range of soils. Whatever you decide to call it, you can count on it calling your garden home.
Details Botanical name: Rudbeckia maxima
Common name: Giant coneflower, cabbage-leaf coneflower, dumbo ears, great coneflower, swamp coneflower, large coneflower
Zone: 4 - 8
Sun exposure: Sun (> 6 hours sun) to part sun (4-6 hours sun)
Height x width: 5-7' tall x 3-4' wide
Flower color: Yellow
Foliage color: Green
Season of interest: Early summer-fall
Bloom time:Summer
Features:Wet soils, rare & unusual, rain gardens, rabbit resistant, native, heat tolerant, deer resistant, cold tolerant, best for beginners
Uses: Border, cottage gardening, massing, naturalizing, pollinator gardens, specimen, wildflower
How To Grow Soil: Average well-draining soil. Can tolerate some mild drought or what conditions
Light: Tolerates light shade, but best in full sun.
Water: Water regularly until established. Once established, it does tolerate mild drought.
Spacing: 1 - 2 ft.
Fertilizing: Go easy on the fertilizer. Too much will result in weak stems and plants. A side dressing of compost should be all they'll need.
Winterizing: You can let the last flowers of the season remain on the plants to go to seed and feed the birds.
Maintenance & pruning: Deadhead to prolong bloom. Divide when clumps become overcrowded. Rudbeckias don't generally die out in the center and don't require frequent division.

Customer Reviews

Based on 6 reviews
67%
(4)
0%
(0)
0%
(0)
17%
(1)
17%
(1)
K
K.G. (Illinois)
getting bigger every day

When talking about "Giant" coneflowers you think "Giant" - but realistically, these are a perennial, remember the saying "Sleep, Creep & Leap" It takes a good three years for all perennials to get established. 1st year, sleep- they grow their root system, 2nd year, creep - a little bigger, 3rd year, leap... BUT I must say, for just getting established, they're a little larger every day - excellent, healthy plants, shipped well, and doing great! Can we fast forward to year three ;)

M
M.T. (California)
Thriving

My two giant coneflower plants arrived well packaged and healthy, although they’re not “giant” yet, I’m confident they will be!

S
S.N. (Oklahoma)

Giant Coneflower

A
A. (Virginia)
Has done very well for me.

I planted this last year in full sun in my Virginia 7a garden. I watered it well the day I planted it and have not watered it since. It's mulched but not on irrigation. I have done nothing to it. It does fine just with the amount of rain we get here and no other attention. The first year my Giant Coneflower just sort of sat there and looked at me. It came back this spring and is 6 or 7 feet tall with lots of flowers on it. I did have to stake it when it leaned over after a big wind storm, but it's doing fine. I'm hoping it will attract some goldfinches once the flower heads go to seed. I came to Great Garden plants to buy another one for another area of my landscape, but it's sold out. I hope they get it back in stock because this is a really cool plant!

J
J.D. (New York)

Very poor condition upon arrival

Hello! Thank you for leaving us feedback. We apologize you received your plants not up to our standards. As we try our best to provide exceptional service, some factors like shipping and handling are outside of our control, and issues like this can sometimes happen. Please email pictures of the plant to claims@greatgardenplants.com, making sure to put your order number and name in the subject line so that we may provide the best assistance possible. Rest assured, we do have a 60-day guarantee on all of our plants. If you received your plants within that timeframe, we will be happy to apply your warranty once we receive the pictures. Happy Gardening!