Conejo dudleya is a small, deciduous, rare succulent native to a narrow ridge in the Conejo Valley area of southern California, usually found on north-facing volcanic cliffs. It is a wild species with a very limited range and is seldom grown outside its native habitat, so care is mainly a matter of mimicking dry summers and cool, shaded rock faces.
Family
Crassulaceae (Stonecrop family)
Grows as
Succulent
Light
Part shade
Water
Water sparingly during its growing season in winter and spring, and keep it nearly dry while dormant in summer.
Soil
Fast-draining gritty mix, such as cactus mix with added pumice or grit.
Temperature
10–24 °C; tolerates light frost when dry, protect from prolonged freezing.
How easy
Hard
Native range
California (W. Santa Monica Mts)
Climate
subtropical
About
Dudleya parva, known by the common name Conejo dudleya, is a species of deciduous succulent plant native to the Conejo Valley and surrounding regions. It blooms from May to June, and has vernal leaves. It is only found from the western end of Simi Hills along the Montclef Ridge to the Conejo Grade in Newbury Park.
Where it grows
The entire species is located over a 16 km stretch of land on an east–west ridgeline of Conejo volcanics, on the western end of the Simi Hills, along Mountclef Ridge, and terminating near Conejo Grade. This distribution only covers an area of around several hundred acres. The population boundaries exhibits some annual fluctuations, but otherwise it has remained in the same suitable habitat area for some time. The rugged terrain makes tracking populations difficult, along with the summer deciduous habit.
Text excerpted from the Wikipedia article Dudleya parva by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.