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poppy mallow

Callirhoe involucrata

Compiled by · Reviewed against CSU Extension & Plant Select® · Updated 2026-09-11

poppy mallow (Callirhoe involucrata) is a Colorado-native perennial suited to the Colorado Front Range. It matures to about 6 in tall and 6–12 in wide, needs low water, and prefers full sun. Fire-wise zone 1-2 perennial; ignitability rating 8.0/10.

Colorado nativeOn the CSFS firewise listlow water6 in tall and 6–12 in wideXeric / water-wiseZones 1–3 (can be planted near the house)Deer-resistant

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At a glance

Will it survive here?

Hardiness zones
USDA 4–8
Water needs
low water
Sun
Best in full sun.
Soil
clay, loam, sandy
Soil pH
6.5–8.0
Hail tolerance
high
Wind tolerance
high
Salt tolerance
moderate
Firewise (defensible space)
Zones 1–3 (can be planted near the house)
Site uses
Slopes & erosion control

How big, what shape?

Mature size
6 in tall and 6–12 in wide
Planting spacing
~8–12 in apart

What it looks like, and when

Bloom time
mid summer
Bloom color
white, pink
Bloom length
Long (several weeks)
Foliage
Deciduous

Who else benefits

Pollinator value
high
Deer
Generally deer-resistant
Colorado native
Yes
Native ecoregion
shortgrass prairie, foothills

Planting & establishment

Deep-water first season to establish, then minimal water needed.

Frequently asked questions

Is poppy mallow good for the Colorado Front Range?
Yes, poppy mallow is a well-suited perennial for Colorado's Front Range.
How big does poppy mallow get?
It matures to about 6 in tall and 6–12 in wide.
How far apart do I plant poppy mallow?
Space poppy mallow about 8 in apart for a faster, fuller bed, or up to 12 in apart for a looser planting.
Is poppy mallow hardy on the Front Range?
poppy mallow is hardy in USDA 4–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
How much water does poppy mallow need?
It needs low water once established.
Is poppy mallow native to Colorado?
Yes. It is a Colorado native.
Is poppy mallow deer-resistant?
poppy mallow is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.
Is poppy mallow a good firewise plant near the house?
poppy mallow is a lower-fuel choice suitable in defensible-space zones 1–3, it can be planted near the house when kept well irrigated and maintained. This is general suitability guidance based on CSU Extension firewise plant lists, not a guarantee that any plant won't burn, a well-irrigated, well-maintained plant is the goal. Follow CSU Extension defensible-space guidance and check with your local fire district before planting in the wildland-urban interface.
How long does poppy mallow bloom?
poppy mallow blooms for several weeks, a long-season performer on the Front Range. Bloom timing shifts a week or two with elevation and spring weather.

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Related perennials

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