Wildflower Archive

prairie wildflower

Wholeleaf Paintbrush

Castilleja integra

Wholeleaf Paintbrush (Castilleja integra)
Castillejaintegra

Native to Arizona, Colorado, New Mexico, and Texas

Western Texas to Arizona and northern Mexico, north to Colorado

  • Light Full sun Sun tolerance
  • Moisture Moisture preference
  • Zones n/a Cold to heat range
  • Bloom Mar–Sep Flowering time
  • Height up to 40 in to 102 cm
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A prairie wildflower for full sun. At up to 40 in, it suits meadows and sunny borders.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Pollinators & wildlife

  • Butterflies Black Swallowtail also Old World Swallowtail
  • Bees Bombus fervidus

Butterflies that use this plant

Documented host and nectar records. Each links to a planting guide for that butterfly.

Full plant details

Where it grows

Habitat
PrairieThe wild plant community it grows in.
Native range
Arizona, Colorado, New Mexico, and TexasUnited States (4): AZ, CO, NM, TX. Where it grows wild on its own, by state and province.
Native distribution
Western Texas to Arizona and northern Mexico, north to ColoradoThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Full sunHow much sun it takes, from full sun to full shade.
Soil
Gravelly soilsThe soils it grows in naturally.

Growth & form

Height
up to 40 in (to 102 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–SepWhen it flowers.
Flower color
RedThe bloom color, or colors.
Toxicity
None knownWhether any part is poisonous to people or pets.