Pinkfairies

Clarkia pulchella

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Onagraceae
Genus:
Clarkia
Species:
Clarkia pulchella
USDA Symbol:
CLPU

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Part Shade
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul,aug
Bloom Colors:
pink, lavender, purple, white

Wildlife Benefits

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

Host Plant for Caterpillars

Clark's sphinx moth (Proserpinus clarkiae)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, hummingbirds
Deer Resistant:
Yes

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
prefers open, sunny habitats

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
10–21 days
Notes:
Seeds require light for germination; sow on surface and do not cover. Cool temperatures (55-65°F) improve germination rates.

The above propagation data sourced from Claude AI

Pre-treatment: None required. However, seed lots have been observed to germinate at higher rates after storage in cold, dry conditions.

Establishment: Wild seeds are collected when the capsules begin to split. Plants in seed increase plantings are cut and dried in paper bags at room temperature. The plant flowers and matures seed indeterminately, thus a judgement must be made as to when to cut the plants to maximize seed production. Seeds are small and dark brown in color. General Distribution: Northwestern US east to South Dakota. Usually found on south slopes in dry, open grassland and open Ponderosa pine forest.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society