North America Native Plant

Smallflower Deathcamas

Botanical name: Zigadenus micranthus var. micranthus

USDA symbol: ZIMIM

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Zigadenus venenosus S. Watson var. micranthus (Eastw.) Jeps. (ZIVEM)   

Smallflower Deathcamas: A Beautiful but Dangerous Native Wildflower If you’re drawn to delicate white wildflowers and native plant gardening, you might find yourself curious about smallflower deathcamas (Zigadenus micranthus var. micranthus). This Pacific Coast native offers understated beauty with its grass-like foliage and clusters of small white blooms, but it ...

Smallflower Deathcamas: A Beautiful but Dangerous Native Wildflower

If you’re drawn to delicate white wildflowers and native plant gardening, you might find yourself curious about smallflower deathcamas (Zigadenus micranthus var. micranthus). This Pacific Coast native offers understated beauty with its grass-like foliage and clusters of small white blooms, but it comes with a serious warning that every gardener needs to know.

What Is Smallflower Deathcamas?

Smallflower deathcamas is a perennial forb native to California and Oregon. As its rather ominous name suggests, this plant is highly toxic—all parts contain dangerous alkaloids that can be fatal if ingested by humans or animals. Despite this serious concern, it plays an important role in native ecosystems and can be a valuable addition to the right garden setting when handled with proper caution.

This herbaceous perennial produces delicate white flowers arranged in terminal clusters, rising above narrow, grass-like leaves. The blooms appear in late spring to early summer, creating a subtle but elegant display that fits beautifully into naturalistic plantings.

Where Does It Grow Naturally?

Smallflower deathcamas is native to the western United States, specifically found growing wild in California and Oregon. In its natural habitat, you’ll typically find it in grasslands, open woodlands, and meadows throughout these Pacific Coast states.

Should You Plant Smallflower Deathcamas?

The short answer: Only if you can ensure complete safety. This plant’s extreme toxicity makes it unsuitable for most home gardens, especially those where children, pets, or livestock might be present. However, there are specific situations where experienced native plant gardeners might consider it:

  • Remote areas of large properties away from foot traffic
  • Specialized native plant preserves or restoration projects
  • Educational gardens with proper signage and barriers
  • Expert-level native plant collections

For most gardeners, we’d recommend choosing safer native alternatives that provide similar aesthetic appeal without the risks.

Growing Conditions and Care

If you do decide to grow smallflower deathcamas with appropriate safety measures, here’s what this California and Oregon native needs to thrive:

Ideal Growing Conditions

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils; tolerates various soil types
  • Water: Drought tolerant once established; minimal summer water
  • Climate: USDA hardiness zones 7-10

Planting and Maintenance

Plant bulbs in fall for spring emergence. Once established, this low-maintenance native requires little care beyond occasional weeding. The plant naturally goes dormant in summer, so don’t be concerned when foliage dies back during hot, dry periods.

Garden Design Role

In appropriate settings, smallflower deathcamas works well in:

  • Native wildflower meadows
  • Drought-tolerant landscape designs
  • Naturalistic plantings that mimic local ecosystems
  • Spring ephemeral displays

Wildlife and Pollinator Benefits

The small white flowers do attract pollinators, particularly smaller insects. However, the plant’s toxicity means it’s generally avoided by larger wildlife, which can actually be beneficial in preventing accidental poisoning of local fauna.

Safety First: Important Warnings

This cannot be overstated: smallflower deathcamas is extremely poisonous. All parts of the plant contain toxic alkaloids that can cause severe illness or death. Never plant this species where children, pets, or livestock might encounter it. Always wear gloves when handling, and clearly mark or fence any plantings.

Native Alternatives to Consider

For gardeners who love the idea of native white wildflowers but want safer options, consider these Pacific Coast natives:

  • White meadowfoam (Limnanthes alba)
  • Yarrow (Achillea millefolium)
  • White clarkia (Clarkia amoena)
  • Pearly everlasting (Anaphalis margaritacea)

The Bottom Line

While smallflower deathcamas is a legitimate native plant with ecological value, its extreme toxicity makes it unsuitable for most garden situations. If you’re passionate about growing this species, ensure you have the expertise and safety measures necessary to handle such a dangerous plant responsibly. For most native plant enthusiasts, there are many safer alternatives that offer similar beauty without the significant risks.

Smallflower Deathcamas

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Liliales

Family

Liliaceae Juss. - Lily family

Genus

Zigadenus Michx. - deathcamas

Species

Zigadenus micranthus Eastw. - smallflower deathcamas

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA