Desert Sweet

Chamaebatiaria millefolium

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Chamaebatiaria
Species:
Chamaebatiaria millefolium
USDA Symbol:
CHMI2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
200 cm
Light Requirements:
Part Shade
Drought Tolerance:
High
Bloom Months:
jun,jul,aug
Bloom Colors:
white
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Nuttall's buckmoth (Hemileuca nuttalli), Holly Blue (Celastrina argiolus)

Reported Fauna Sightings

Bees: Central bumble bee (Bombus centralis), Hunt's bumble bee (Bombus huntii), ⚠️Western honey bee (Apis mellifera) Hummingbirds: Anna's Hummingbird (Calypte anna)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from root crown after fire; found in fire-prone montane habitats.

Soil Requirements

Soil Type:
rocky, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
adapted to arid, mountainous regions

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–42 days
Notes:
Seeds germinate best with cold stratification; light may enhance germination.

The above propagation data sourced from Claude AI

Pre-treatment: Stratification for 2 to 4 weeks. Cold stratification involves sowing in plug trays, ensuring media is moist, covering with an inverted flat, stacking, and placing in a walk-in cooler at 40°F. Check periodically for germination or need for moisture.

Establishment: Collected in Grand Canyon National Park, Arizona. Fertilizer used is Peters Peat Lite Special 20-10-20 at a rate of 200-mg/l nitrogen.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. If no germination in 3 months, try 4C 1-2 months, then 20C again.

Source: Ontario Rock Garden & Hardy Plant Society