Advanced Search Filters

Plant Type
Hardiness Zone
Heat Zone
Sunset Zone
Function
Sun Exposure
Soil Moisture
Water Requirement

CALYLOPHUS berlandieri

Image of Calylophus berlandieri

Gerald L. Klingaman

Family

Onagraceae

Botanical Name

CALYLOPHUS berlandieri

Plant Common Name

Berlandier's Sundrops

General Description

Berlandier's sundrops is notable for its narrow, linear leaves with sparse, fine teeth on their edges, and months of evening primrose flowers. Normally an evergreen perennial that grows from woody stems near the ground, it is native to the south central and southwestern United States and northern Mexico in grasslands.

The wiry, thick stems of this perennial are orange-tan and lightly lined with long, linear leaves of a light to medium-green. The leaves form a whorled head at the stem tips, from which the squared flower buds develop. From spring to fall, showy yellow flowers with four crinkled petals appear, attracting insects. The red-tinged buds open in the afternoon and close the next day around lunchtime.

Grow Berlandier's sundrops in full sun and average to gritty, well-drained soil that is moist but never waterlogged. This perennial tolerates high summer heat, but such temperatures may put a hiatus on the usual flowering show. Perfect for mixed prairie meadows, roadside plantings or a rock garden or hillside, the rather unkempt appearance of this perennial lends it a role as a companion to other showy plants. Prune the plant back in early spring annually to encourage full foliage.

Characteristics

  • AHS Heat Zone

    10 - 5

  • USDA Hardiness Zone

    5 - 9

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    4"-20" / 10.2cm - 50.8cm

  • Width

    1"-2" / 2.5cm - 5.1cm

  • Bloom Time

    Late Spring, Early Summer, Summer, Late Summer, Early Fall

  • Native To

    North America, United States, South-Central United States, Southwestern United States, Texas, Mexico

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Lemon Yellow

  • Fruit Color

    Green

  • Foliage Color (Spring)

    Light Green

  • Foliage Color (Summer)

    Green, Light Green

  • Foliage Color (Fall)

    Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Fine

  • Foliage Sheen

    Matte

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Mixed Border, Rock Garden / Wall, Wildflower

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    Yes