Calylophus hartwegii

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Butterfly FriendlyFull SunPart ShadeBird Friendly
Calylophus hartwegii

Sundrops flower profusely in spring with yellow, cup-shaped blooms. The flowers open in the evening and close the next afternoon. This plant loves reflective heat making it a great choice for the rock garden. Looks beautiful planted with blackfoot daisies and penstemon. Attracts hawkmoths.

Huge Hawk Moths love its sweet nectar
Profuse colorful bloom stands out in the landscape
Tolerant of reflective heat, good for rock gardens
The flowers provide nectar to night-flying moths
Butterflies and hummingbirds love the nectar
Drought tolerant once established

Native Range

Native to the Southwest in prairies, plains, meadows and pastures.

Interesting Facts

Moth pollination is more prevalent in the Southwest than in other regions of North America due to warm evenings and favorable climate. Hawk Moths are important pollinators that are so big they look like hummingbirds as they hover over flowers.


Deadheading and giving it some summer water will prolong the flowers. Cut back to 6-8 in the autumn to reshape.

Mature Size: 6-12in. Tall x 2-3ft. Wide

Hardiness Zone: 5-9

Sun Exposure: Full Sun to Part Shade

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