Key Facts
- Bulbous perennial native to western North America
- Produces clusters of creamy white star shaped flowers in spring
- Leaves are grasslike and arise from a basal rosette
- All parts of the plant are poisonous to humans and livestock
- Contains steroidal alkaloids that affect the gastrointestinal and cardiac systems
- Common in meadows, open grasslands, and open forest edges
- Can be mistaken for edible camas or wild onions
- Propagates by seed and by formation of bulb offsets
Death Camas is a bulbous perennial that produces clusters of creamy white star shaped flowers each spring. It suits naturalized meadow plantings and open edge borders but all parts are highly poisonous to people pets and livestock.
Identification
Leaves are grasslike and arise from a basal rosette while flower stalks carry clusters of cream colored star shaped blooms. Plants typically reach 8 to 24 inches tall and form clumps 6 to 18 inches across from bulbs and offsets. Bulbs resemble small onions and are often mistaken for edible camas or wild onions.
Where to grow and best uses
Natural settings include meadows open grasslands and light open forest edges in USDA zones about 4 through 9. Full sun to partial shade gives best flowering especially in open slopes. Use in wildflower meadows or untended slopes where livestock and children are excluded because of high toxicity.
Planting and spacing
Place bulbs or clumps so established colonies have room to form roughly 15 to 45 centimeters between clumps. Expect spring blooms in May through June in many areas. Avoid planting near pastures or play areas since bulbs and foliage remain dangerous to humans pets and livestock.
Water and soil
Death Camas prefers well drained soils from sandy to loamy and tolerates dry to moderately moist ground. Poorly drained conditions lead to bulb rot and reduced vigor. Once established plants need little supplemental water in suitable sites and overwatering increases the risk of rot.
After flowering care
Remove spent flower stalks to tidy the site but leave foliage until it yellows so bulbs can refill energy reserves. In colder parts of the range foliage dies back sooner while in warmer areas leaves may persist longer. Wear gloves when handling spent material and avoid composting bulbs.
Spread control and safety
Death Camas spreads by seed and by formation of bulb offsets so colonies expand over time. To reduce spread lift and remove bulbs before they set seed or dig offsets to shrink a patch. Dispose of plant material safely and keep animals away from treated areas. Consult poison control or a veterinarian for exposures.
Propagation
Propagate by seed or by dividing bulb clusters and offsets. Seed grown plants may take several seasons to reach flowering size while bulb division gives quicker reestablishment. Always handle bulbs with gloves due to toxicity and follow local extension guidance for division timing.
Frequently asked questions
- How fast does Death Camas grow?
- It forms clumps over time through bulb offsets and spreads slowly by seed. Seed raised plants can need several seasons to reach flowering size while offsets create gradual colony expansion.
- Is Death Camas poisonous to pets?
- Yes all parts are poisonous to pets and livestock. Bulbs are especially toxic and can cause gastrointestinal and cardiac symptoms. Contact a veterinarian or poison control for any suspected ingestion.
- Can Death Camas be confused with edible camas or wild onions?
- Yes the bulbs and grasslike leaves can resemble edible camas or wild onions which makes careful identification critical. When in doubt do not taste or handle bulbs without expert confirmation.
- Will Death Camas naturalize in a garden setting?
- It will naturalize in meadow style plantings and open slopes by offsets and seed. Choose planting sites with no access to livestock or children if allowing it to form colonies.
- How do I remove Death Camas from a lawn or patch?
- Dig up bulbs before they set seed remove offsets and repeat over seasons to deplete the bulb bank. Wear gloves and avoid feeding removed material to animals. Seek local extension advice for large infestations.
Related Plants
