great coneflower

Also known as: cabbage leaf coneflower; large coneflower

R. maxima is a tall herbaceous perennial producing a mound of large, smooth, blue-grey leaves. The flowering stems rise to 1.5m, carrying yellow-petalled daisy flowers with central dark brown to black cones from midsummer to mid-autumn

great coneflower

Scientific classification

Species
great coneflower (Rudbeckia maxima)
Genus
Rudbeckia
Family
Asteraceae
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Toxicity
Herbaceous Perennial
Plant type
1.5-2.5 metres
Height
0.5-1 metres
Spread
Deciduous
Foliage
Clump forming
Habit
Spring · Summer · Autumn
Season of interest
Full sun
Sunlight
Information to be completed
Ideal temperature

great coneflower pictures

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Distribution of great coneflower

Distribution map

USA

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Culture

Information to be completed

Toxicity

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Quick identification of great coneflower

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great coneflower care guide

Moderate regular watering, allowing slight drying between irrigations
Watering
Full sun
Sunlight
Information to be completed
Ideal temperature

Watering

Moderate regular watering, allowing slight drying between irrigations

Fertilizing

Light balanced feed in spring and once more before flowering

Pruning

Deadhead faded flowers

Propagation

Propagate by division in spring or autumn

Growing

Likes a deep, moist soil in a sunny position

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Common pests and diseases

Diseases

Generally disease free

Pests

Generally pest-free

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