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Gerald L. Klingaman
Onagraceae
CALYLOPHUS berlandieri
Berlandier's Sundrops
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.
10 - 5
5 - 9
1a, 1b, 2a, 2b, 3a, 3b, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Perennial
Full Sun, Partial Sun
4"-20" / 10.2cm - 50.8cm
1"-2" / 2.5cm - 5.1cm
Late Spring, Early Summer, Summer, Late Summer, Early Fall
North America, United States, South-Central United States, Southwestern United States, Texas, Mexico
Acidic, Neutral
Well Drained
Loam, Sand
Drought
Medium
Drought Tolerant, Average Water
Clump-Forming
Summer, Fall
Showy
Lemon Yellow
Green
Light Green
Green, Light Green
No
Single
Yes
Fine
Matte
Semi-Evergreen
Mixed Border, Rock Garden / Wall, Wildflower
Butterflies
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