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Triteleia laxa

A native Californian perennial herb in the Lily family with grassy leaves and blue to purple star-shaped flowers on foot-long stems that bloom in spring to early summer, forms underground corms and cormlets, propagates via corms and seeds, and attracts bees and butterflies.

Is Triteleia laxa growing in your garden? Record it and all of your plants in Known.

Common Names

Ithuriel's Spear, Grassnut, Triplet Lily, Common Triteleia, Blue Brodiaea, Fool's Onion, Long Rayed Triteleia, Pretty Face, Starflower, Bloomeria, Wild Hyacinth, Wally Baskets

Summary

Ithuriel's spear is a cormous perennial native to western North America, including California and Oregon, with basal, grasslike leaves that wither during flowering and tall stems bearing umbels of six-petaled blue to blue-purple to white flowers; the plant grows about 0.3–0.6 m tall and is mildly fragrant.

It prefers full sun to partial shade on well-drained soils, is drought-tolerant once established, and requires regular moisture in spring but drying during summer dormancy; hardy to zones 6–10 and may overwinter in zone 5 with protection, and can be grown in containers; propagation occurs by seeds or division of corms, with seed taking 2–3 years to flower; it naturalizes readily and is suited for borders, rock gardens, native meadows, and wildlife gardens, attracting bees and butterflies and providing edible bulbs.

Lifecycle

Perennial

Height

6 inches to 3 feet

Spread

4-6 inches

Hardiness Zones

Zones 6-9

Sunlight Requirements

Ideally full sun, tolerates partial sun or partial shade.

Soil Type

Well-drained loamy or sandy loam soil, rich in organic matter, slightly acidic to neutral.

Soil Drainage

Well-drained soil

Soil pH

6-7 (slightly acidic to neutral)

Bloom Color

Blue (usually blue; sometimes violet or white)

Bloom Time

Spring

Foliage Color

Green

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

7 months

Seasons of Interest

Spring, Summer, Fall, Winter

Propagation Methods

Seeds and Division (of corms, offsets, or bulbs)

Attracts Wildlife

Attracts bees, Attracts butterflies, Attracts other pollinators

Taxonomy

Taxonomic Rank
Species
Author
Benth.
Publication
Trans. Hort. Soc. London , ser. 2, 1: 413 (1834 publ. 1835)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Asparagales
Family
Asparagaceae
Genus
Triteleia

Synonyms

Milla laxa Seubertia laxa Seubertia obscura Tulophos laxa Brodiaea laxa Brodiaea laxa var. candida Brodiaea laxa var. nimia Brodiaea laxa var. tracyi Milla laxa Hookera laxa Triteleia candida Triteleia angustiflora Brodiaea candida

References

Triteleia laxa or Triplet lily | Care and Growing. consultaplantas.com.
Triplet Lily (Triteleia laxa): A Guide to Cultivat…. wildflowerweb.co.uk.
Ithuriel's Spear - Calscape. calscape.org.
Draft Plant Propagation Protocol. courses.washington.edu.
Triteleia Laxa -- Earthpedia plant. earthpedia.earth.com.
Triteleia laxa - FNA. floranorthamerica.org.
How to Grow Triteleia. harvesttotable.com.
Triteleia Laxa (Ithuriel's Spear) -. hometuary.com.
Triteleia Laxa Care - PlantIn. myplantin.com.
Triteleia laxa Benth. GRIN-Global. npgsweb.ars-grin.gov.
Triteleia laxa Grassnut, Ithuriel's spear PFAF Pla…. pfaf.org.
Triteleia laxa | Brodiaea lax | Tritellia laxa | G…. plantlust.com.
Triteleia laxa - North Carolina Extension Gardener…. plants.ces.ncsu.edu.
Triteleia laxa Benth. | Plants of the World Online…. powo.science.kew.org.
Triteleia laxa - Wikispecies. species.wikimedia.org.
SEINet Portal Network - Triteleia laxa. swbiodiversity.org.
Triteleia laxa (Ithuriel's Spear) - Gardenia.net. gardenia.net.
Triteleia Care: Tips For Growing Triplet Lily Plan…. gardeningknowhow.com.
Triteleia laxa – The Watershed Nursery Cooperative. watershednursery.com.
World Flora Online. worldfloraonline.org. June 2024.