General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F)
Plant Spread: 2-3 feet or up to 6 feet if clumping
Leaves: Glaucous
Unusual foliage color
Evergreen
Fruit: Dehiscent
Flowers: Showy
Flower Color: White
Flower Time: Spring
Inflorescence Height: Up to 13 feet
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Edible Parts: Flowers
Eating Methods: Raw
Cooked
Wildlife Attractant: Bees
Resistances: Drought tolerant
Propagation: Seeds: Self fertile
Pollinators: Self
Moths and Butterflies
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: Tolerates poor soil
With thorns/spines/prickles/teeth
Monocarpic
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern
Image
Common names
  • Chaparral Yucca
  • Our Lord's Candle
  • Foothill Yucca
  • Izote de Hoz
Botanical names
  • Accepted: Hesperoyucca whipplei
  • Synonym: Yucca whipplei
  • Synonym: Yucca peninsularis

Photo Gallery
Location: Baja California
Date: 2020-04-25
Location: Baja California
Date: 2019-12-30
Location: Angeles National Forest, California
Date: 2012-06-08
var. parishii
Location: Baja California
Date: 2020-04-25
Location: Baja California
Date: 2020-04-25
Location: Chula vista ca
Date: 2020-04-08
Location: Baja California
Date: 2017-04-13
Location: Desert Botanical Garden Phoenix Arizona
Date: 2016-01-03
Location: Baja California
Date: 2020-05-09
Location: Baja California
Date: 2010-04-03
Location: Santa Monica Mountains National Recreation Area, California
Date: 2012-05-25
Location: Baja California
Date: 2020-05-09
Location: Baja California
Date: 2020-08-29
6 lines of seed (~200 total) in a fruit
Location: Baja California
Date: 2017-04-13
In the process of dying
Location: Baja California
Date: 2017-04-13
Location: Baja California
Date: 2017-04-13
Fallen inflorescence viewed from the base
Location: Santa Monica Mountains National Recreation Area, California
Date: 2012-05-25
var. intermedia
Location: Santa Monica Mountains National Recreation Area, California
Date: 2010-05-17
Location: Baja California
Date: 2016-04-29
Location: Point Mugu State Park, California
Date: 2014-03-14
Recovering from a brush fire
Location: Dayton, TN
Date: 2014-08-22
Location: Coastal San Diego County 
Date: 2019-03-08
San Elijo Lagoon
Location: Baja California
Date: 2010-02-12
Location: Baja California
Date: 2016-04-29
Flower and fruit; unusually small plants at maturity
Location: Santa Monica Mountains National Recreation Area, California
Date: 2012-05-25
var. intermedia
Location: Point Mugu State Park, California
Date: 2014-03-14
Plants recovering from a fire
Location: Santa Monica Mountains National Recreation Area, California
Date: 2012-07-16
var. intermedia
Location: Coastal San Diego County 
Date: 2019-03-08
San Elijo Lagoon
Location: San Elijo Lagoon 
Date: 2017-09-18
Location: Santa Monica Mountains National Recreation Area, California
Date: 2011-04-29
Location: Santa Monica Mountains National Recreation Area, California
Date: 2009-06-20
Location: Santa Monica Mountains National Recreation Area, California
Date: 2011-09-26
Location: Santa Monica Mountains National Recreation Area, California
Date: 2010-04-09
var. intermedia
Location: Angeles National Forest, California
Date: 2008-06-07
var. parishii
Location: Angeles National Forest, California
Date: 2008-06-07
var. parishii
Location: Angeles National Forest, California
Date: 2008-06-07
var. parishii
Location: Yucca peninsularis Huntington Botanical Garden, San Marino, CA
Date: 2008-01-24
Photo courtesy of: scottzona

Date: 2011-07-25
Credit USFWS
This plant is tagged in:
Image Image

Comments:
  • Posted by Baja_Costero (Baja California - Zone 11b) on Apr 26, 2020 5:11 PM concerning plant:
    Low rosette succulent with many narrow, blue or blue-green leaves. It makes flowers like a yucca (and is also pollinated by a yucca moth, Tegeticula maculata) but dies after flowering, like an agave. This plant is native to the Californias (and a very small area of Arizona), where it is relatively common. Both solitary and caespitose forms (eg. the former var. caespitosa) exist. The latter tends to have smaller rosettes and may persist in the same location after several rounds of flowering. Plants in habitat may take up to 50 years to bloom, but plants in cultivation may bloom much sooner (after about 10 years).

    This plant provides excellent color and symmetry in the garden. Plan for a final size of about 3-4 feet wide (solitary varieties) or more (offsetting varieties). The leaves have sharp tips which are best set back from foot traffic. The inflorescence may grow to 12-13 feet tall and is very striking. Plant in full sun in most locations. This species may tolerate light shade, some temperatures below freezing (down to about 10°F) and desert heat, given some overhead protection. It may do best in winter rainfall climates (like its habitat); it tolerates winter rainfall and summer drought very well.

    As a young plant, this species may be confused with a few narrow-leafed yuccas (rigida, rostrata, schottii) and bears a faint resemblance to Dasylirion wheeleri, minus the large teeth. Based on DNA studies it seems to be closely related to Hesperaloe, which produces a similar fruit. The flowers and buds were traditionally used as food.

    This plant is easy to grow from seed and relatively quick (2-3 years) to reach landscape size. Green fruit can be collected and allowed to ripen (dry out) in a safe place, at which point it will easily break open to release hundreds of seeds.

    This genus apparently evolved a relationship with the yucca moth independently of Yucca species. Its closest genetic relatives (eg. Hesperaloe) are not pollinated by moths.

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