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:
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
- Tuck seeds into moist soil in early spring for best germination.
- Water regularly to keep soil evenly moist during growing season.
- Provide full sun for optimal flowering and growth.
- Apply a balanced fertilizer in early spring and mid-summer.
- Divide mature clumps every 3-4 years in early spring or fall.
- 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
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
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.
More Kniphofia to compare

Flamenco Red Hot Poker
Kniphofia uvaria 'Flamenco'

Border Ballet Red Hot Poker
Kniphofia uvaria 'Border Ballet'

Red Hot Poker
Kniphofia uvaria

Fairyland Red Hot Poker
Kniphofia uvaria 'Fairyland Hybrids'

Candlelight Red Hot Poker
Kniphofia uvaria 'Candlelight'

Red Hot Poker Mix
Kniphofia uvaria 'Mix'
Keep exploring
Explore the genus
Hardy in your zone?
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.

