Queen of the prairie

Sun

Full sun to partial shade; afternoon shade helps in hot summers, but too much shade reduces flowering and encourages leaning.

Water

Keep consistently moist, especially during spring growth and flowering. It tolerates wet ground but performs poorly in soil that dries out.

Soil

Humus-rich, moisture-retentive loam or clay; tolerates heavy and periodically waterlogged soil. Avoid dry, shallow or very sandy ground.

Height

4-8 ft (1.2-2.4 m)

Spread

3-4 ft (0.9-1.2 m) initially, forming wider colonies over time

Flowers

Early to midsummer; airy clusters of pink flowers that fade to paler pink.

Foliage

Large green compound leaves with a prominent, deeply lobed terminal leaflet; bronze-tinged when young and dying back in winter.

Growth

Fast in moist, fertile soil

Care needed

Medium

• Pollinators
• Deer resistant
• Cold hardy
• Wildlife
• Low allergen
• Fragrant

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Moderate

Toughness

Fairly tough

Pick your zone, country, light and whether you have pets.

1. Planting day

   1 ft (0.3 m)

2. After 1 year

   4 ft (1.1 m)

3. After 2 years

   6 ft (1.8 m)

   full size

About 2 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Safe

Native to

the US

In the garden

Spreads vigorously: plan to contain it.

Growth rate

Fast

• Water deeply during dry spells so the root zone stays moist.
• Apply compost and a moisture-conserving mulch in spring, keeping mulch clear of emerging shoots.
• Avoid heavy nitrogen feeding, which can encourage weak, floppy stems.
• Use discreet supports in spring if the site is windy or partly shaded.
• Divide congested clumps in spring and remove unwanted spreading shoots.

Pruning. Leave the faded flower heads for their structure, or remove them once they turn brown for a tidier appearance. Cut dead stems to ground level in late winter or early spring before new shoots lengthen.

Late winter

Cut down dead stems before new growth begins.

Early spring

Plant or divide clumps while the soil is moist and workable.

Spring

Apply compost and mulch, and install supports where needed.

Summer

Water during dry weather and check for scorched or wilting leaves.

Late summer

Leave fading flower heads for texture or trim them off for a cleaner border.

Autumn

Check the colony's edges and remove shoots spreading into neighbouring plants.

• Plant in groups toward the back of a deep border for tall, soft pink summer colour.
• Use beside a pond or in a rain garden where the soil stays moist, rather than planting under standing water.
• Combine with moisture-loving grasses and upright perennials in a naturalistic meadow planting.
• Pair with blue-flowered irises and white flowering perennials for a cool, soft-coloured border.

Garden styles it suits: Cottage garden, Native meadow, New perennial (prairie), Bog garden, Romantic rose garden and Midwest prairie.

Plant it with: Siberian iris, Culver's root, Joe-Pye weed, Tussock sedge, Great blue lobelia and Bowman's root.

Wildlife: Flowers provide pollen for bees and other visiting insects. Dense established clumps also offer shelter for small invertebrates.

• Brown leaf edges, wilting or early dieback usually indicate dry soil; water deeply and replenish mulch.
• Powdery mildew may develop in crowded or stressed plants; improve airflow, maintain soil moisture and remove badly affected foliage.
• Rust can cause orange-brown spots or pustules on leaves; remove affected foliage and clear infected debris.
• Flopping stems are more likely in shade or overfed soil; provide more light, avoid high-nitrogen fertiliser and support stems early.

Not known to be toxic to people, cats, dogs or horses, but species-specific safety information is limited. Do not treat the leaves, stems, flowers or roots as food or animal forage.

Where it spreads. Spreads by underground rhizomes and can crowd neighbouring plants in moist gardens in the United States, Canada, the United Kingdom and Australia. Allow room for a colony or control its edges by division; vigorous garden spread is not the same as a regional invasive listing.

• Meadowsweet (Filipendula ulmaria)

  Has creamy-white rather than pink flowers, with smaller terminal leaflets and often pale or whitish leaf undersides.

• Japanese astilbe (Astilbe japonica)

  Usually shorter, with more finely divided foliage and denser, tapering flower plumes rather than broad, cloudlike clusters.

The species name rubra means red, referring to its reddish-pink flowers, while queen of the prairie describes its tall, conspicuous presence in moist prairie vegetation.

Propagation. Divide established clumps in early spring, keeping healthy roots and growing buds on each piece. Species plants can also be raised from seed, usually with a period of cold, moist conditions; named cultivars should be divided to retain their characteristics.

Accepted botanical name

Filipendula rubra

In the US and Canada

Native in the lower 48 states. Introduced in Canada.

Native range

Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Mississippi, Missouri, North Carolina, Ohio and Pennsylvania.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.