Dudleya brittonii

Dudleya brittonii


Dudleya brittonii (Giant Chalk Dudleya)

Dudleya brittonii (Giant Chalk Dudleya) is a solitary or slowly-clumping succulent with beautiful rosettes of fleshy, white to silver-gray…

The leaves of Dudleya brittonii grow in a basal rosette and are covered with a dusty, chalky, mealy white epicuticular wax. The wax in its mealy state on the leaves is attracted to water and coats drops on the leaves and prevents their evaporation. The wax has the highest measured ultraviolet reflectivity of any plant. [1]

Dudleya brittonii is similar in appearance to Dudleya pulverulenta, native to California.

Dudleya brittonii is cultivated as an ornamental plant for use in well-drained rock gardens and as a potted succulent. [2]

  1. ^ Spectral Properties of Heavily Glaucous and Non-Glaucous Leaves of a Succulent Rosette-Plant, Thomas W. Mulroy, Oecologia, 1979, [1]
  2. ^San Marcos Growers
  3. ^"Dudleya brittonii". www.rhs.org. Royal Horticultural Society . Retrieved 3 June 2020 .

This Crassulaceae-related article is a stub. You can help Wikipedia by expanding it.

Wikimedia Commons has media related to Dudleya brittonii .
  • Wikidata: Q10956818
  • Wikispecies: Dudleya brittonii
  • EoL: 5547706
  • GBIF: 4199328
  • GRIN: 409548
  • iNaturalist: 276127
  • IPNI: 85557-2
  • ITIS: 894343
  • NCBI: 1289438
  • Plant List: kew-2778920
  • POWO: urn:lsid:ipni.org:names:85557-2
  • Tropicos: 8901284
  • WFO: wfo-0000657660

This Crassulaceae-related article is a stub. You can help Wikipedia by expanding it.

Cheat Sheet

  • Depending on the species, Dudleyas will exhibit either branching or un-branching habits: single rosettes (which make excellent focal points in a garden) belong to unbranched species and low-growing, spreading clumps (which are good ground covers) are branching species.
  • Dudleya is a good choice for a container garden pair it with other plants with minimal water requirements and use a cactus mix soil.
  • Flowering Dudleyas are a lure to hummingbirds.
  • During dry months, Dudleya may shrivel and wilt it will regain its pillowy plumpness in wetter months.
Above: D. brittonii. Photograph via Tree of Life Nursery.

“The trick to Dudleyas seems to be location and quantity. Dudleyas are so beautiful in season that it is hard not to plant it front and center and expect to revel in its beauty year round,” says a Tree of Life Nursery succulents specialist. “However, planting a large swath of Dudleyas will often leave you with a couple of undesirable outcomes: a semi-desiccated, less-than-brilliant planting for part of the year and the temptation to water the plants during the dry season, a practice that should be avoided.”

Plants→Dudleyas→Giant Chalk Dudleya (Dudleya brittonii)

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
Fruit: Dehiscent
Flower Color:Yellow
Other: Greenish yellow
Bloom Size:Under 1"
Flower Time:Spring
Late spring or early summer
Suitable Locations:Beach Front
Uses:Provides winter interest
Will Naturalize
Wildlife Attractant:Hummingbirds
Resistances:Deer Resistant
Drought tolerant
Propagation: Other methods:Cuttings: Stem
Containers:Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous:Goes Dormant

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.

These sun-loving plants are best kept dry in winter. They hybridize freely in the wild.

Watch the video: Reto Mi Echeveria Preferida Dudleya Brittonii