Wildflower Archive

woodland wildflower

Yellow Star-tulip

Calochortus monophyllus

Yellow Star-tulip (Calochortus monophyllus)1 of 2
Biodiversity Heritage Library

Native to California

California Sierran foothills, Shasta to Tuolumne counties

  • Light Partial shade Sun tolerance
  • Moisture Moisture preference
  • Zones n/a Cold to heat range
  • Bloom Mar–May Flowering time
  • Height up to 8 in to 20 cm
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A woodland wildflower for partial shade. Its yellow flowers peak in May. At up to 8 in, it tucks into shade gardens and woodland edges.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

When it blooms

The Yellow Star-tulip's yellow flowers bloom March to May, peaking in May. It's a late-spring display.

Mar–MayJanFebMarAprMayJunJulAugSepOctNovDec

Yellow Star-tulip blooms yellowFoliage

Full plant details

Where it grows

Habitat
WoodlandThe wild plant community it grows in.
Native range
CaliforniaUnited States (1): CA. Where it grows wild on its own, by state and province.
Native distribution
California Sierran foothills, Shasta to Tuolumne countiesThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Partial shadeHow much sun it takes, from full sun to full shade.
Soil
Well-drained, clay loamThe soils it grows in naturally.

Growth & form

Height
up to 8 in (to 20 cm)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
Mar–MayWhen it flowers.
Flower color
YellowThe bloom color, or colors.
Fruit/Seeds
ripens Apr–JunThe seed or fruit it sets after flowering.
Toxicity
None knownWhether any part is poisonous to people or pets.