Desert Mallow
Sphaeralcea ambigua
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
36 inches
Light
Full Sun
Zones
5, 6, 7, 8, 9
Water
Low
Humidity
Low
Lifespan
Perennial
Native To
Southwestern U.S. and Northern Mexico
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Sphaeralcea ambigua, commonly known as Desert Mallow, is a perennial shrub featuring soft, grey-green foliage and clusters of cup-shaped orange to coral flowers that bloom in summer. This species is highly drought-tolerant and well-suited for xeriscaping, with a sprawling habit that provides attractive groundcover and vibrant seasonal color.
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-draining soil in early spring.
- Water sparingly until established, about 2 weeks.
- Place in full sun for best flowering results.
- Fertilize lightly with a low-nitrogen fertilizer in spring.
- Prune after flowering to maintain shape and encourage new growth.
- Mulch around base to retain moisture and suppress weeds.
Pro Tip
Ensure excellent drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water deeply during prolonged dry spells 🌱
- Prune back after flowering to shape the plant
- Apply a low-nitrogen fertilizer in spring
Don't
- Overwater, avoid soggy soil ❌
- Neglect pruning, which can lead to leggy growth
- Use high-nitrogen fertilizer that encourages foliage over flowers
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prune | ||||||||||||
| 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
Desert Mallow questions
What zones can Desert Mallow grow in?
Desert Mallow is hardy in USDA Zones 5–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Desert Mallow deer resistant?
Yes — Desert Mallow is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Desert Mallow bloom?
Desert Mallow typically blooms in spring to fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Desert Mallow need full sun?
Desert Mallow does best in full sun (6+ hours).
Is Desert Mallow drought tolerant?
Yes — once established (usually after the first full season), Desert Mallow handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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Grow Desert Mallow 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.
