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Gambelia speciosa (Island Snapdragon)
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Island Snapdragon
( Gambelia speciosa )
Gambelia speciosa
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
Click on blue squares to see occurrence records.
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59 Nurseries Carry This Plant
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About Island Snapdragon (Gambelia speciosa)
59 Nurseries Carry This Plant
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Island Snapdragon (
Gambelia speciosa
) is a somewhat vine-like perennial plant native to the Channel Islands and to Guadalupe Island, Mexico. It has trumpet-shaped red flowers that attract birds, especially hummingbirds. Under the right conditions it can bloom almost year round.
Island Snapdragon is easy to grow, fast growing and beautiful, a perennial widely available in native California nurseries. It prefers sun or part shade (more shade inland), but you will get more flowers in full sun. It likes rocky slopes and seaside conditions and will tolerate a variety of soils. It tolerates occasional summer water, up to twice a month. Good in containers.
It was formerly categorized under the genus Galvezia, and some sources still list it that way. 'Firecracker' is a popular horticultural variety.
Plant Description
Plant Type
Shrub
Size
1 - 3.3 ft tall
10 ft wide
Form
Spreading
Growth Rate
Fast
Dormancy
Evergreen
Fragrance
None
Flower Color
Red
Flowering Season
Winter, Spring
Wildlife Supported
Birds, especially hummingbirds, and various insects
Landscaping Information
Sun
Full Sun, Part Shade
Moisture
Very Low
Summer Irrigation
Max 2x / month once established
Nurseries
Carried by 59
Ease of Care
Very Easy
Cold Tolerance
Tolerates cold to 30° F
Soil Drainage
Fast, Medium, Slow
Soil Description
Tolerates a variety of soils. Soil PH: 6.0 - 8.0
Common uses
Hummingbird Gardens, Bird Gardens, Butterfly Gardens
Companion Plants
Island companion plants include Santa Cruz
Island Ironwood
(
Lyonothamnus floribundus
ssp. asplenifolius),
Island Live Oak
(Quercus tometella),
Tree Poppy
(
Dendromecon harfordii
),
Island Bristleweed
(
Hazardia detonsa
),
Redflower Buckwheat
(
Eriogonum grande
var. rubescens),
Catalina Cherry
(
Prunus ilicifolia
ssp. lyonii), and
Giant Coreopsis
(
Leptosyne gigantea
). Other chaparral and sage scrub companions include
California Encelia
(
Encelia californica
),
California Sagebrush
(
Artemisia californica
),
Bladderpod
(
Peritoma arborea
), and
Ceanothus
spp.
Maintenance
Because it tends to be vine-like, it can be cut back whenever stems get too lengthy. Don't cut back into the woody portion.
Propagation
?
Seeds or cuttings. For propagating by seed: No treatment.
Natural Setting
Site Type
Rocky slopes, bluffs, canyons and coastal terraces of the Channel Islands among coastal sage scrub
Climate
Annual Precipitation: 8.1" - 13.1", Summer Precipitation: 0.20" - 0.26", Coldest Month: 53.2" - 57.3", Hottest Month: 65.2" - 73.0", Humidity: 1.55" - 16.63", Elevation: 7" - 1789"
Alternative Names
Botanical Names
: Galvezia speciosa
Common Names
: Galvezia, Showy Greenbright
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Island Snapdragon
Gambelia speciosa
Sources include:
Wikipedia
. All text shown in the "About" section of these pages is available under the
Creative Commons Attribution-ShareAlike License
. Plant observation data provided by the participants of the
California Consortia of Herbaria
, Sunset information provided by
Jepson Flora Project
. Propogation from seed information provided by the
Santa Barbara Botanical Garden
from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include
CalPhotos
,
Wikimedia Commons
, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include
Calflora
,
CNPS Manual of Vegetation Online
,
Jepson Flora Project
,
Las Pilitas
,
Theodore Payne
,
Tree of Life
,
The Xerces Society
, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from
PRISM Climate Group, Oregon State University
, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.
Links:
Jepson eFlora Taxon Page
CalPhotos
Wikipedia
Calflora
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