Does it need staking?

Yes, because of its height, it often benefits from support to prevent it from flopping over.

It can be aggressive in small gardens, so give it plenty of space to spread.

Plant guide

Cutleaf coneflower.

Rudbeckia laciniata

Pronounced rud-BEK-ee-uh lah-sin-ee-AY-tuh

Also known as Coneflower, Cut-leaf Coneflower, Cutleaf Coneflower, Dronjava pupavica

Rudbeckia laciniata — Photo by Conway Hawn (CC0) via gbif

This tall perennial brings a cheerful, wild look to your garden with its bright yellow blooms. It thrives in moist, sunny spots and is a favorite for local pollinators. You will love how it stands out in the back of a border.

Another photo of Cutleaf coneflower — Photo by Will Kuhn (CC BY) via iNaturalist

At a glance

Care level: Easy
Plant type: Herbaceous perennial
Light: Full sun to partial shade
Indoor light: Direct sun
Water: Every 3 to 7 days
Mature size: 3 to 9 feet
Growth rate: Fast
Hardiness: USDA 3 to 9
Bloom time: Mid summer to early autumn

Care

Keep the soil consistently moist to prevent the leaves from wilting during hot spells. Watch for powdery mildew on the foliage if the air circulation is poor. Deadheading spent flowers can encourage a second flush of blooms later in the season.

Watering: Keep the soil evenly moist, especially during dry summer weather.
Feeding: Apply a balanced compost or organic fertilizer once in early spring.
Pruning: Cut the stems back to the ground in late winter or early spring.
Repotting: Divide the clumps every few years to maintain vigor and prevent overcrowding.
Soil: Moist, fertile, well draining soil
Soil pH: 6.0 to 7.5
Temperature: -35 to 35°C
Humidity: 40 to 70%
Drought tolerance: Low
Lifespan: Perennial, typically 5 to 10 years
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of the drainage holes
Water running straight through the pot without soaking in

Safety

People: The plant contains sesquiterpene lactones which can cause skin irritation upon contact.
Children: Keep children away from the foliage to prevent skin irritation, and discourage ingestion of any plant parts.
Contact allergens: Handling the foliage may cause dermatitis in sensitive individuals due to the presence of sesquiterpene lactones.
Airborne allergens: The pollen can trigger hay fever symptoms in susceptible people during the late summer bloom.
Edibility: This plant is not considered edible and may cause irritation if ingested.

How to identify it

Tall stems reaching several feet
Deeply lobed, jagged green leaves
Bright yellow drooping ray florets
Prominent greenish yellow central cone

Height: 1.2 to 2.5m
Spread: 0.6 to 1m
Leaves: green, deciduous
Flowers: yellow, 5 to 10cm
Fruit: brown, late autumn

Problems to watch for

Powdery mildew · A white fungal growth appears on leaves during periods of high humidity and poor air circulation.

By symptom

Plant problems by symptom

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Growing it

Propagation: division, seed
When to plant: spring, autumn
Overwintering: Cut the stems back to the ground after the first hard frost to tidy the garden. The crown will remain dormant through the winter.
In containers: It is generally too large for containers unless you use a very deep, heavy pot to prevent tipping.

Division

1. Dig up the clump in early spring as new growth begins.
2. Use a sharp spade to divide the root mass into smaller sections.
3. Replant the divisions immediately at the same depth as the original plant.

Pair this plant with other moisture-loving perennials to create a lush, self-sustaining meadow border.

Grows well with

Joe Pye Weed · They share similar moisture requirements and bloom at the same time.
New England Aster · The purple flowers provide a beautiful color contrast to the yellow coneflowers.
Switchgrass · The grass provides structural support and a textural contrast to the broad leaves.

Similar species

Black-eyed Susan · It is a smaller, more common relative with similar flower structure.

Science

Family: Asteraceae
Genus: Rudbeckia
Order: Asterales
Class: Magnoliopsida
Native range: North America
Conservation: This species is widespread and not of conservation concern.

It naturally inhabits moist thickets, floodplains, and stream banks where it can access consistent soil moisture.

Value to wildlife: nectar source, larval host plant, seed source for birds
Pollinators: bees, butterflies, moths
Uses: pollinator gardens, wildlife borders, naturalized areas, cut flowers

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 1/9
Soil reaction: 6/9
Light: 7/9
Temperature: 5/9
Moisture: 7/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need staking?: Yes, because of its height, it often benefits from support to prevent it from flopping over.
Is it invasive?: It can be aggressive in small gardens, so give it plenty of space to spread.

Where the name comes from

The genus honors Olof Rudbeck, a Swedish botanist, while the species name laciniata refers to the deeply cut or fringed appearance of the leaves.

Good to know

It is commonly known as cutleaf coneflower because of its deeply lobed leaves.
The plant can reach over two meters in height in ideal conditions.
It is a host plant for the silvery checkerspot butterfly.
The flowers have a distinct drooping petal habit.
It thrives in moist soil where other plants might struggle.

Keep your cutleaf coneflower growing

This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.

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This guide was generated with AI on October 19, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.