Dudleya

 

Dudleya is a genus of about 40 species from southwestern USA and Baja California in Mexico. It was at one point included in the genus Cotyledon, and then moved to Echeveria, and at last got their own genus. The genus is named after the Stanford professor William Dudley.

Dudleyas are succulent rosettes, most species build a thick stem as they age, that can eventually become a 2 feet long trunk. Older plants heads can be cut in the fall and, after letting the cuttings dry for 3 day to make sure the cut is healing, replanted in a well drained mix. Cuttings in late spring and summer are seldom successful.

They need full sun in coastal areas, light shade is welcome away from the coast. Even with the best care, many cannot take the Arizona heat, where only Dudleya saxosa and Dudleya arizonica are recommended.

Dudleyas are winter growers, they come out of dormancy in late fall, and do most of their growth in late winter, corresponding to a wetter period in their natural habitat. Some of the species are intolerant of summer water. Water them regularly in winter and use diluted fertilizer. They bloom in spring.

Most species will take some frost.

They are grown from seeds or division.

Species and varieties
Dudleya anomala
Dudleya anthonyi
Dudleya attenuata (Orcutt's Liveforever, Tapertip Liveforever)
Dudleya brittonii
Dudleya caespitosa (Sea Lettuce)
Dudleya candida
Dudleya cultrata
Dudleya cymosa
Dudleya edulis (Fingertips)
Dudleya gatesii
Dudleya gnoma (Dudleya 'White Sprite')
Dudleya guadalupensis
Dudleya pachyphytum
Dudleya pulverulenta ssp. pulverulenta (Chalk Lettuce)
Dudleya saxosa ssp. collomiae (Rock Live-forever)
Dudleya virens ssp. hassei
Dudleya brycae synonym of Dudleya candida
Dudleya collomiae synonym of Dudleya saxosa ssp. collomiae (Rock Live-forever)
Dudleya cotyledon synonym of Dudleya caespitosa (Sea Lettuce)
Dudleya greenei synonym of Dudleya gnoma (Dudleya 'White Sprite')
Dudleya hassei synonym of Dudleya virens ssp. hassei
Dudleya helleri synonym of Dudleya caespitosa (Sea Lettuce)
Dudleya laxa synonym of Dudleya caespitosa (Sea Lettuce)
Dudleya pulverulenta ssp. typica synonym of Dudleya pulverulenta ssp. pulverulenta (Chalk Lettuce)

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