General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 9a -6.7 °C (20 °F) to -3.9 °C (25 °F)
Plant Height: Up to 15 inches
Plant Spread: Up to 30 inches
Leaves: Glaucous
Evergreen
Fruit: Dehiscent
Flowers: Inconspicuous
Flower Color: Yellow
Other: Greenish yellow
Bloom Size: Under 1"
Flower Time: Spring
Late spring or early summer
Winter
Suitable Locations: Beach Front
Xeriscapic
Uses: Provides winter interest
Will Naturalize
Wildlife Attractant: Hummingbirds
Resistances: Deer Resistant
Drought tolerant
Propagation: Other methods: Cuttings: Stem
Offsets
Pollinators: Birds
Bees
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Goes Dormant

Image
Common names
  • Giant Chalk Dudleya
  • Siempreviva
  • Silver Dollar Plant
  • Britton's Dudleya

Photo Gallery
Location: The Prickly Pear, Sacramento CA.
Date: 2021-10-31
Location: Display garden at Annie's Annuals and Perennials
Date: 2018-04-28
Location: Baja California
Date: 2012-03-30
Location: Baja California
Date: 2017-02-25
Location: Baja California
Date: 2018-12-24
Day-long sun, start of winter, 10 inch pot
Location: Baja California
Date: 2016-05-07
Location: Baja California
Date: 2019-04-12
Green form with nodding flowers, plus a random Cotyledon
Location: Ontario, Canada
Date: 2021-04-02
Location: Baja California
Date: 2022-03-31
Stress colors, early spring
Location: Baja California
Date: 2012-04-10
Constrained for years
Location: Baja California
Date: 2011-06-16
Location: Baja California
Date: 2012-03-26
Location: Baja California
Date: 2017-04-07
Upright flowers a characteristic of the white form
Location: Baja California
Date: 2017-12-19
First true leaves emerging on volunteer seedlings
Location: Baja California
Date: 2012-03-26
Location: South of Punta Banda, Baja California
Date: 2004-11-06
Clustering form
Location: Baja California
Date: 2021-03-07
The only powder on this plant with green leaves is on the inflore
Location: Baja California
Date: 2015-02-21
Location: Baja California
Date: 2016-05-07
Drooping flowers usually a characteristic of the green form
Location: Baja California
Date: 2019-06-02
Nodding inflorescences are typical of the green form
Location: Baja California
Date: 2017-03-05
About 15 years old
Location: Baja California
Date: 2012-04-10
Location: Baja California
Date: 2020-05-07
Dead leaves are retained on the stem
Location: Baja California
Date: 2022-12-16
Location: Near Punta Banda, Baja California
Date: 2013-12-18
Clustering southern form
Location: Hamilton Square Garden, Historic City Cemetery, Sacramento CA.
Date: 2017-11-27
The rosette of scorched leaves were tightly closed through our br
Location: Baja California
Date: 2011-01-19
Hallmark signs of mealy bug activity in the core: distorted leave
Location: Baja California
Date: 2021-05-29
Location: Baja California
Date: 2019-05-14
13 branches
Location: San Diego Botanical Garden, Encinitas, California
Date: 2013-04-01
Location: El Salto, Baja California
Date: 2018-03-29
Old, long-stemmed plant fallen from a sheer rock face.  Gravity f
Location: Baja California
Date: 2022-07-07
Branching by division of the growth center
Location: Baja California
Date: 2012-04-04
Location: Redondo Beach
Date: 4/10/18
Location: Baja California
Date: 2013-06-01
Late spring colors
Location: Harrogate Autumn Flower show, Yorkshire
Date: 2018-09-15
Location: Baja California
Date: 2018-10-22
Mid fall, day-long sun, 3 gallon pot
Location: Baja California
Date: 2015-06-23
Result of coring (most branches will not survive)
Location: Baja California
Date: 2016-01-07
Location: Baja California
Date: 2016-11-14
Squirrel food (branching plant)
Location: Baja California
Date: 2014-11-29
Color and posture reflect chronic drought stress.
Location: El Salto, Baja California
Date: 2018-03-29
Only dead leaves and flower stems left
Location: UC Berkeley Botanical Gardens
Date: 2008-11-06
Location: Baja California
Date: 2011-03-20
Shady location
Location: Pacific Northwest, zone 8
Date: Jun 8, 2012
Location: Baja California
Date: 2013-12-18
Volunteers show up all around the mother plant
Location: Baja California
Date: 2013-12-18
Location: Baja California
Date: 2013-12-18
Location: Baja California
Date: 2016-04-27
Spring color
Location: Baja California
Date: 2020-04-12
White plant
Location: Baja California
Date: 2017-01-06
Ready for the ground (10 inch pot) with amputated flower stalks
Location: Baja California
Date: 2018-03-17
Hybrid between white and caespitose green forms
Location: Baja California
Date: 2017-05-04
Location: Baja California
Date: 2016-03-03
Location: Baja California
Date: 2017-03-02
Location: Baja California
Date: 2012-03-24
Most green plants have hanging flowers
Location: Baja California
Date: 2014-11-29
Location: Baja California
Date: 2016-04-07
Location: Baja California
Date: 2017-11-15
Location: San Diego Botanical Garden, Encinitas, California
Date: 2013-04-01
Location: Near Punta Banda, Baja California
Date: 2013-12-18
Clustering southern form
Location: Baja California
Date: 2013-12-18
Unusually long stem
Location: Baja California
Date: 2016-03-03
Location: Middle Tennessee
Date: 2011-10-09
Pup

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Location: Baja California
Date: 2016-03-03
Unusually highly branched inflorescence
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Comments:
  • Posted by Baja_Costero (Baja California - Zone 11b) on Jan 3, 2016 8:41 PM concerning plant:
    There are two versions of this rosette succulent, a powder-dusted bluish white one and a powder-free pale green one. Different looking but the flower is almost identical so they have been lumped. Both are found in northwestern Baja California distributed along the immediate vicinity of the coast, roughly from Rosarito to Puerto Santo Tomás. This location has an exceptionally mild, often foggy climate with dry summers and wet winters.

    In cultivation and in nature, these plants obey a natural cycle of summer dormancy and winter growth, so they will look quite different depending on the time of year. They like excellent drainage (they grow on almost pure rock in habitat) and will do well in a surprisingly broad range of containers, being dwarfed by smaller ones and exuberant in larger ones, as long as they are provided strong light. Very drought tolerant (months of summer drought is normal in habitat).

    Here in habitat they flower from early winter through early summer, roughly, depending on water availability. Small, tubular flowers borne in clusters above the plant attract hummingbirds. Will grow a stem (covered in dead leaves and flower stalks) over time. Normally solitary, especially the white northern form (ie. only from seed), but there is a green-leaved population toward the south of the plant's range which branches dichotomously and forms impressively large clusters over time. Individual rosettes of either form can easily be grown from short-stemmed cuttings.

    This plant is self-seeding in my container garden. Seedlings can be reliably transplanted when they are thumbnail-sized and can grow to full size within about one season.

    The white form of D. brittonii may look vegetatively similar to D. pulverenta, but its flowers are different (among other ways greenish yellow, not red). D. brittonii can be one of the parents of the naturally occurring hybrid D. x semiteres, along with D. attenuata orcutti. The green form of D. brittonii may be difficult to resolve from D. ingens, which grows further to the south, especially when not in flower.
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Oct 26, 2011 2:03 PM concerning plant:
    These sun-loving plants are best kept dry in winter. They hybridize freely in the wild.
Discussion Threads about this plant
Thread Title Last Reply Replies
Dudleya brittonii by valleylynn Oct 1, 2016 10:36 PM 10
Seedling followup by Baja_Costero Feb 21, 2018 6:07 PM 1
Very Interesting by tx_flower_child May 6, 2018 7:37 PM 1

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