Double Scarlet Hollyhock
Alcea rosea 'Double Scarlet'
Essentials
At a Glance
Plant Type
Perennial
Height
72 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Short-lived perennial or biennial
Native To
Asia
Toxicity
Non-toxic
The Story
Plant Bio
A classic cottage garden plant, this short-lived perennial or biennial produces tall, stately spires of large, showy flowers. This cultivar features large, fully double, powder-puff-like flowers in a vibrant scarlet-red.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds 1/4 inch deep into moist soil in early spring.
- Water regularly to keep soil evenly moist but not waterlogged.
- Provide full sun for optimal flowering and growth.
- Stake tall plants to prevent wind damage during summer.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Deadhead spent flowers to encourage more blooms.
Pro Tip
Plant in well-drained soil with plenty of sunlight for best results.
Keep It Thriving
Care Guide
Do
- Water consistently, especially during dry spells 🌱
- Provide support for tall flower spikes
- Remove faded flowers to promote reblooming
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t plant in heavy, poorly-drained soil
- Refrain from excessive fertilizing late in the season
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Pest Check | ||||||||||||
| Spring Cleanup | ||||||||||||
| Stake |
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
Double Scarlet Hollyhock questions
What zones can Double Scarlet Hollyhock grow in?
Double Scarlet Hollyhock is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Double Scarlet Hollyhock deer resistant?
Yes — Double Scarlet Hollyhock is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Double Scarlet Hollyhock bloom?
Double Scarlet Hollyhock typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Double Scarlet Hollyhock need full sun?
Double Scarlet Hollyhock does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Double Scarlet Hollyhock drought tolerant?
Yes — once established (usually after the first full season), Double Scarlet Hollyhock handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Alcea to compare
Old Farmyard Hollyhock
Alcea rosea 'Old Farmyard'
Double Hollyhock
Alcea x rosea 'Double Hollyhock Mix'
Hollyhock Country Mix
Alcea rosealca 'Country Mix'
Apricot Hollyhock
Alcea roseae 'Halo Apricot'
Hollyhock Mix
Alcea x hybrida 'Mix'
Hollyhock
Alcea roseaa
Keep exploring
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Grow Double Scarlet Hollyhock 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.
