Arizona Poppy
Kallstroemia grandiflora
Bright red flowers burst into bloom with the summer monsoons, transforming barren ground into a vivid desert carpet.
A frost-tender warm-season monsoon annual in USDA zones 9-11; it germinates with summer heat and rain in the low desert, blooms through the monsoon, and reseeds to return.
AMWUA Notes
A very low-water native that turns summer monsoon moisture into a vivid carpet of color with no irrigation in a wet year.
Care Guide
A warm-season annual triggered by monsoon moisture; water deeply every 1-2 weeks in summer to mimic the rains, and it needs heat to germinate and bloom.
None; the low, spreading plants flower and set seed through summer, then dry with cooler weather — leave them to reseed.
None needed; it thrives on lean, disturbed desert soil.
Trouble-free.
Unlike most desert wildflowers, this is a warm-season monsoon annual; sow in late spring or fall and expect germination and bloom with summer heat and moisture, then reseeding.
Soil, Feeding & Propagation
Lean, disturbed, sandy or gravelly desert soils; thrives on hot, open, disturbed ground.
Needs well-drained soil.
None — thrives in lean desert soil without fertilizer.
Seed; sow in late spring or fall — it germinates with summer heat and monsoon moisture (warm-season), then reseeds.
2 ft
Minimal; a low-spreading warm-season annual that reseeds to return with each monsoon.
Placement Tips
- •Use for summer color where cool-season wildflowers leave a gap, especially in disturbed or open ground.
- •Mass across open areas for a spreading carpet of orange-red monsoon blooms.
- •Sow where summer heat and monsoon moisture combine — it will not germinate in cool weather.
- •Full sun and reflected heat; let it reseed to return with each monsoon season.
Features
Best Uses
Ecological Value
Attracts
Companion Plants
Quick Stats
Design Styles
Include in Your Project
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Use this care guide to maintain your Arizona Poppy. Questions about your landscape? Reach out anytime.
Data from 2024 AMWUA “Landscape Plants for the Arizona Desert” guide.
Arizona Poppy — common questions
Answers for low-desert Phoenix conditions, drawn from this plant’s growing data.
How much water does Arizona Poppy need in Phoenix?
Arizona Poppy is a moderate-water annual once established. A warm-season annual triggered by monsoon moisture; water deeply every 1-2 weeks in summer to mimic the rains, and it needs heat to germinate and bloom. A very low-water native that turns summer monsoon moisture into a vivid carpet of color with no irrigation in a wet year.
How big does Arizona Poppy get?
Expect roughly 2 ft tall and 2 ft wide at maturity, with a moderate growth rate. Allow about 2 ft of spacing when planting. Minimal; a low-spreading warm-season annual that reseeds to return with each monsoon.
Can you plant Arizona Poppy near a pool?
Yes. Arizona Poppy is considered pool-friendly, meaning it stays clean enough around water features and hardscape. Litter is rated low.
Can Arizona Poppy handle Arizona heat and winter frost?
Arizona Poppy is hardy in USDA 9-11 and wants full sun. A frost-tender warm-season monsoon annual in USDA zones 9-11; it germinates with summer heat and rain in the low desert, blooms through the monsoon, and reseeds to return. Unlike most desert wildflowers, this is a warm-season monsoon annual; sow in late spring or fall and expect germination and bloom with summer heat and moisture, then reseeding.
Does Arizona Poppy have thorns?
No. Arizona Poppy is thornless, so it is safe alongside walkways, patios and play areas.
Is Arizona Poppy safe around pets?
Arizona Poppy is listed as pet-friendly in this guide. If your dog is a determined chewer, check any new plant with your vet before planting.
When does Arizona Poppy bloom in Arizona?
Arizona Poppy blooms in summer, with bright red flowers. The bloom draws bees, butterflies.
How much maintenance does Arizona Poppy need?
Arizona Poppy is low-maintenance. Leaf, flower and pod litter is rated low. None; the low, spreading plants flower and set seed through summer, then dry with cooler weather — leave them to reseed.
What kind of soil does Arizona Poppy need?
Lean, disturbed, sandy or gravelly desert soils; thrives on hot, open, disturbed ground. It needs no supplemental feeding. None needed; it thrives on lean, disturbed desert soil.
Is Arizona Poppy native to Arizona?
Yes. Arizona Poppy is native to Arizona and to the Southwestern US, Northern Mexico, so it is adapted to local rainfall, soil and heat.