Scarlet Hibiscus Swamp Hibiscus
Hibiscus coccineus
Essentials
At a Glance
Plant Type
Perennial
Height
60 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
6, 7, 8, 9
Water
Moderate
Humidity
High
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Hibiscus coccineus, commonly known as swamp hibiscus, is a perennial herbaceous plant that thrives in wetland areas and is known for its large, showy, red flowers. This species is notable for its strikingly vibrant flowers and ability to tolerate both wet and clay soils, making it a unique choice for moisture-rich gardens.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Choose a sunny location with well-drained soil to plant hibiscus coccineus.
- Tuck seeds or cuttings into moist soil, ensuring good contact for germination.
- Water regularly to keep soil consistently moist but not waterlogged.
- Fertilize monthly during the growing season with a balanced fertilizer.
- Prune lightly after flowering to maintain shape and encourage new growth.
- Mulch around the base to retain moisture and suppress weeds.
Pro Tip
Plant in a sheltered spot to protect from strong winds and ensure vibrant blooms.
Keep It Thriving
Care Guide
Do
- Regularly water during dry spells 🌱
- Apply a balanced fertilizer monthly
- Prune to shape and remove dead or damaged branches
- Mulch to conserve moisture and temperature
- Provide full sun for optimal flowering
Don't
- Avoid overwatering, which can cause root rot ❌
- Don't fertilize late in the season to prevent weak growth
- Refrain from heavy pruning during the flowering period
- Never plant in poorly drained soil
- Avoid exposing to frost
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Pest Check | ||||||||||||
| Stake | ||||||||||||
| Winter Prep |
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
Scarlet Hibiscus Swamp Hibiscus questions
What zones can Scarlet Hibiscus Swamp Hibiscus grow in?
Scarlet Hibiscus Swamp Hibiscus 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 Scarlet Hibiscus Swamp Hibiscus deer resistant?
Yes — Scarlet Hibiscus Swamp Hibiscus is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Scarlet Hibiscus Swamp Hibiscus bloom?
Scarlet Hibiscus Swamp Hibiscus typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Scarlet Hibiscus Swamp Hibiscus need full sun?
Scarlet Hibiscus Swamp Hibiscus does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Hibiscus to compare
Midnight Marvel Swamp Hibiscus
Hibiscus moscheutos 'Midnight Marvel'
Rose of Sharon Hibiscus
Hibiscus syriacus 'Azurri Blue Satin'
Pink Chiffon Rose of Sharon
Hibiscus syriacus 'Pink Chiffon'
Blue Chiffon Rose of Sharon
Hibiscus syriacus 'Blue Chiffon'
Confederate Rose
Hibiscus paramutabilis
White Chiffon Hibiscus
Hibiscus syriacus 'White Chiffon'
Keep exploring
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Hardy in your zone?
Grow Scarlet Hibiscus Swamp Hibiscus 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.
