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Toxicoscordion fremontii

West Coast native perennial regrows from an underground bulb, features a spike of white flowers that often bloom after fire, and contains highly toxic alkaloids.

Is Toxicoscordion fremontii growing in your garden? Record it and all of your plants in Known.

Common Names

Death Camas, Star Lily, Fremont's Star Lily, Fremont's Death Camas

Summary

Fremont's star lily, a bulb-forming perennial herb native to California and western North America, is a bulbous geophyte with linear basal leaves and stems about 2 ft tall, bearing a branched spike of white to cream star-shaped flowers. Each flower is 1–4 cm across with six parts (three petals and three similar sepals) and a green center, and bulbs measure 20–35 mm in diameter. Blooms occur March–June on grassy or woody slopes and rocky outcrops in lower-lying regions of California, SW Oregon, and northern Baja California.

Prefers full sun to mostly sun in well-drained soils with dry summers and requires minimal irrigation, with water sparingly and soil allowed to dry between waterings; propagation mainly by bulb division during dormancy; hardy in USDA zones 5a–10b; deer resistant and attractive to bees and butterflies; all parts are poisonous.

Lifecycle

Perennial

Height

2-3 feet

Spread

5-24 inches

Hardiness Zones

Zones 5a-10b

Sunlight Requirements

Ideally full sun; tolerates partial sun to partial shade.

Soil Type

Well-drained loamy soil.

Soil Drainage

Well-drained soil

Soil pH

6.5

Bloom Color

White to cream-colored

Bloom Time

Spring

Foliage Color

Green, Light-green

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

6-8 months

Seasons of Interest

Spring

Propagation Methods

Seeds, Division

Attracts Wildlife

Attracts bees

References

Toxicoscordion fremontii Calflora. calflora.org.
Chaparral Zygadene - Calscape. calscape.org.
Fremont Star Lily (Toxicoscordion fremontii). cnps-yerbabuena.org.
How To Grow Toxicoscordion fremontii | EarthOne. earthone.io.
Toxicoscordion fremontii. en.wikipedia.org.
Toxicoscordion fremontii Facts for Kids. kids.kiddle.co.
Fremont’s Star Lily. naturecollective.org.
Taxonomy browser (Toxicoscordion fremontii). ncbi.nlm.nih.gov.
Toxicoscordion fremontii (Torr.) Rydb. GRIN-Global. npgsweb.ars-grin.gov.
Zigadenus (fremontii) - Native Plant Network - RNG…. npn.rngr.net.
Toxicoscordion fremontii | plant lust. plantlust.com.
Toxicoscordion fremontii (Torr.) Rydb. | Plants of…. powo.science.kew.org.
Star Lily - Toxicoscordion fremontii. smmtc.org.
Toxicoscordion fremontii. species.data.kew.org.
WFO Plant List | World Flora Online. wfoplantlist.org.
Toxicoscordion fremontii - Calflora. calflora.org.
Toxicoscordion fremontii | California Flora Nurser…. calfloranursery.com.
Zigadenus fremontii | Fremont's Star Lily. californiagardens.com.
Toxicoscordion fremontii (Fremont's Star Lily) - G…. gardenia.net.
Toxicoscordion fremontii (Torr.) Rydb.. gbif.org.
Toxicoscordion fremontii - Linda Vista Native Plan…. lindavistanatives.com.
Fremont Star Lily, Star Zigadene Toxicoscordion fr…. mdia.org.
Toxicoscordion fremontii – The Watershed Nursery C…. watershednursery.com.
World Flora Online. worldfloraonline.org. June 2024.