Home
Advanced Search Map Locator
View Settings
Nurseries Carrying this Plant Add Current Plant To List Edit Current Plant
Show all Photos

Butterflies My Plant Lists Nurseries Planting Guide Contact Calscape About Calscape
Tap map to see plants native to location
Order by Popularity Order by Common Name Order by Scientific Name Order by # of Butterflies Hosted
Show nursery cultivars Hide nursery cultivars
Show plants not in nurseries Hide plants not in nurseries
Grid view Text view
Loading....
Ithuriel's Spear
Triteleia laxa
  
About Ithuriel's Spear (Triteleia laxa) 11 Nurseries Carry This Plant Ithuriel's Spear (Triteleia laxa) is a common native perennial herb in the Themidaceae (Lily) family that grows primarily in northern and central California. It tends to grow in openings in forest or woodland with sandy soil, at elevations from 0-4600 feet. It is a geophyte related to lilies and onions, growing from an edible corm. In spring it sends up one or a few slender grass-like leaves, followed by a leafless stem topped with a spray of blue to purple (rarely white) flowers. After flowering it needs a dry summer dormancy. The flowers strongly resemble members of the Brodiaea and Dichelostemma genera. In the garden it is best use in mass with other geophytes and showy annuals such as California Poppy. The number of flowers in any given year is highly variable. There are many named varieties in cultivation, including 'Humboldt Star' and 'Sierra Giant'.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
2 ft tall
.5 ft wide

Dormancy
Dormancy
Summer Deciduous

Flower Color
Flower Color
Blue, Lavender, Purple, White

Flowering Season
Flowering Season
Spring, Summer

Wildlife Supported
 
Numerous insects including bees and butterflies are attracted to the flowers. Some mammals will dig up and eat the corms

Landscaping Information
Sun
Sun
Full Shade, Part Shade, Full Sun

Moisture
Moisture
Low

Summer Irrigation
Summer Irrigation
Max 2x / month once established

Nurseries
Nurseries

Soil Drainage
Soil Drainage
Medium, Slow

Soil Description
Soil Description
Does well in sandy soil but can also tolerate clay soil

Common uses
Common uses
Butterfly Gardens, Bee Gardens

Propagation
Propagation?
The plant is most easily established by planting corms.  For propagating by seed: No treatment.

Sunset Zones
Sunset Zones?
5, 7*, 8, 9, 14*, 15*, 16*, 17*, 19*, 20*, 21*, 22*, 23*, 24*

Natural Setting
Site Type
Site Type
Open sandy places, meadows; most often in open oak or pine woodland areas.

Climate
Climate
Annual Precipitation: 6.9" - 129.6", Summer Precipitation: 0.17" - 3.43", Coldest Month: 36.7" - 55.4", Hottest Month: 53.8" - 79.2", Humidity: 0.09" - 27.90", Elevation: -22" - 6704"

Alternative Names
Botanical Names: Brodiaea laxa
Common Names: Grassnut


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


Sign in to your Calscape Account X




Once signed in, you'll be able to access any previously saved plant lists or create new ones.

Email Address
Password

Sign In