perennial

Marsh Redhot Poker

Kniphofia uliginosa

The Story

Plant Bio

Kniphofia uliginosa, commonly known as bog red hot poker, is a perennial plant that thrives in wetland conditions.

This species is unique for its preference for wetter soils compared to other Kniphofia species.

Uses & Benefits:

Ornamental UsesKniphofia uliginosa offers striking, torch-like flower spikes that add height and vibrant color to gardens, attracting hummingbirds and pollinators.
Practical UsesServes as an excellent natural barrier and adds structure to perennial borders.
Ecological BenefitsSupports pollinator habitat, attracting bees, butterflies, and hummingbirds.

Essentials

At a Glance

Plant Type

Perennial

Height

48 inches

Width

24 inches

Light

Full Sun

Zones

6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

South Africa

Toxicity

Non-toxic to humans and pets

Planting

How to Grow

  1. Tuck seeds into moist soil in early spring for best germination.
  2. Water regularly to keep soil evenly moist during growing season.
  3. Provide full sun for optimal flowering and growth.
  4. Apply a balanced fertilizer in early spring and mid-summer.
  5. Divide mature clumps every 3-4 years in early spring or fall.
  6. Mulch around the base to retain moisture and suppress weeds.

Pro Tip

Ensure excellent drainage to prevent root rot and encourage healthy growth.

Keep It Thriving

Care Guide

Do

  • Water deeply during dry spells 🌱
  • Deadhead spent flowers to promote reblooming
  • Apply fertilizer in spring and mid-summer

Don't

  • Avoid overwatering to prevent root rot ❌
  • Do not disturb roots excessively when dividing
  • Never use high nitrogen fertilizer which encourages foliage over flowers

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Divide
Fertilize
Mulch
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tall, vibrant perennial borderDramatic focal point in perennial bedsWildflower meadow accent

Multiply

Propagation Methods

Good to Know

Common Questions

Marsh Redhot Poker questions

What zones can Marsh Redhot Poker grow in?

Marsh Redhot Poker is hardy in USDA Zones 6–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Marsh Redhot Poker deer resistant?

Yes — Marsh Redhot Poker is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Marsh Redhot Poker bloom?

Marsh Redhot Poker typically blooms in late summer to autumn through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Marsh Redhot Poker need full sun?

Marsh Redhot Poker does best in full sun (6+ hours).

Is Marsh Redhot Poker drought tolerant?

Yes — once established (usually after the first full season), Marsh Redhot Poker handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Grow Marsh Redhot Poker with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.