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Rudbeckia grandiflora (Rough coneflower)

Beginner
skill rating
1 hour care
per year
1.5m
Max height
0.9m
Max spread
1-2 years
To maturity

Plant details

Botanical name

Rudbeckia grandiflora

Other names

Rough coneflower

Genus

Rudbeckia Rudbeckia

Species

R. grandiflora - R. grandiflora is an upright, clump-forming, hairy perennial with oblong, veined, dark green leaves and, from late summer to mid-autumn, tall, branching stems bearing daisy-like, bright yellow flowers with brown central cones.


Rudbeckia grandiflora is: Deciduous

Habit

Branching, Clump-forming, Upright

Flower

Bright-yellow in Summer; Bright-yellow in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn

How to care

Watch out for

Pests

Generally pest free. Resistant to damage by deer (Deer Resistant B - Seldom Severely Damaged).

General care

Pruning

Cut back faded flower stems. Cut to the ground in early spring.

Propagation

Sow seed with heat in spring. Keep in cooler conditions after germination.

Propagation methods

Division, Seed


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Where to grow

Rudbeckia grandiflora (Rough coneflower) will reach a height of 1.5m and a spread of 0.9m after 1-2 years.

Suggested uses

Beds and borders, Cottage/Informal, Flower Arranging, Low Maintenance, Prairie planting, Wildflower

Cultivation

Plant in moderately fertile, free-draining soil in a sunny or lightly shaded position. Resistant to damage by deer.

Soil type

Clay, Loamy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Rudbeckia grandiflora

Other names

Rough coneflower

Genus

Rudbeckia Rudbeckia

Species

R. grandiflora - R. grandiflora is an upright, clump-forming, hairy perennial with oblong, veined, dark green leaves and, from late summer to mid-autumn, tall, branching stems bearing daisy-like, bright yellow flowers with brown central cones.

Native to

Garden origin

Foliage

Deciduous

Habit

Branching, Clump-forming, Upright


Colour

Flower

Bright-yellow in Summer; Bright-yellow in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn


How to care

Watch out for

Pests

Generally pest free. Resistant to damage by deer (Deer Resistant B - Seldom Severely Damaged).

General care

Pruning

Cut back faded flower stems. Cut to the ground in early spring.

Propagation

Sow seed with heat in spring. Keep in cooler conditions after germination.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Rudbeckia grandiflora (Rough coneflower) will reach a height of 1.5m and a spread of 0.9m after 1-2 years.

Suggested uses

Beds and borders, Cottage/Informal, Flower Arranging, Low Maintenance, Prairie planting, Wildflower

Cultivation

Plant in moderately fertile, free-draining soil in a sunny or lightly shaded position. Resistant to damage by deer.

Soil type

Clay, Loamy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

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This plant likes... Garden match
Soil types: Clay, Loamy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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