The illustrated growing guide

Camas

Camassia quamash

Family Asparagaceae

Est. zones 3-8

Botanical illustration of Camas
Bulb · Camassia quamash

One of the most beautiful native bulbs — rivers of blue stars in a spring meadow, alive with bees — and a historically vital Indigenous food crop of the Northwest. Grow it for the show and the pollinators. The famous edible bulb comes with a hard rule: it's indistinguishable from lethal death camas except in flower, so treat eating it as expert-only.

Bulb · NativeFull Sun to Part ShadeModerate waterSpring bulb growthNative to North AmericaAttracts bees

Where to buy the plant — 1 nursery

Wild Hyacinth — a print from the Wildflowers Vol. 3 collection

From the print shop

The closest print we make

We don’t print Camassia quamash. The closest we have is Camassia scilloides (“Wild Hyacinth”) in the Wildflowers Vol. 3 collection — the same genus, Camassia, not the same species.

16 designsfrom $21.99white or black groundmatte poster, unframed

Shop Wildflowers Vol. 3 botanical prints →

I

Overview

Will camas suit your garden, and what goes wrong.

Will it fruit where you are?

Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what camas actually needs.

Hardy inZones 3-8

Camas at a glance

HardinessUSDA 3–8
Mature size1-2 ft flower spikes
PollinationSpikes of star-blue flowers feed early bees
Chill requirementNot yet established
Bloom seasonLate Spring — beautiful blue spires in moist meadows
Harvest seasonBulbs were a First Nations staple food (slow-roasted for days to convert inulin to sweetness) — but see caution
Growth rateSpring bulb

Common camas problems

  • Almost none
  • Almost none

II

Growing

Light, water, soil, propagation and the season’s jobs.

How to grow camas: light, water & soil

LightFull Sun to Part Shade
WaterModerate-High in spring; dry summer dormancy
SoilRich, moist in spring (meadow native) · pH 6.0 - 7.0
FertilizerNone
PruningLet foliage yellow — A stunning native bulb of wet spring meadows — spires of blue stars naturalizing into drifts. Its bulbs were a major Indigenous food of the Pacific Northwest (pit-roasted for days into a sweet, molasses-like food). CAUTION: only the blue-flowered camas is edible — it's easily confused with the DEADLY white-flowered 'death camas', so identify by flower before ever considering the bulb.
Spacing4-6 in

How to plant & propagate camas

PropagateOffsets, division, or bulbils

III

The year

What camas asks for, month by month.

The camas year, month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Bloom

What each band means

  • Bloomflowers open — pollinators working, frost on blossoms is the danger.

The camas year as text

  • Jan quiet month
  • Feb quiet month
  • Mar quiet month
  • Apr quiet month
  • May bloom
  • Jun quiet month
  • Jul quiet month
  • Aug quiet month
  • Sep quiet month
  • Oct quiet month
  • Nov quiet month
  • Dec quiet month

These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.

IV

Ecology & uses

What it does for the garden, and what it is grown for.

Camas in the garden system

  • Root layer bulb
  • Nectary/insectary
AttractsBees
HabitatPrairie/meadow
MoistureFacultative / average
DeerBrowsed — protect young plants
OriginNative to North America

What camas is grown for

✓ Commonly eatenBlue camas bulb edible when properly slow-cooked; the look-alike DEATH CAMAS (white flowers) is lethal — never eat a camas bulb you can't confirm in bloom

UseBlue meadow drifts
UseNative pollinator
UseHistoric food (expert)

Harvesting & storing camas

Bulbs were a First Nations staple food (slow-roasted for days to convert inulin to sweetness) — but see caution.

Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.

V

Cultivars

Named varieties of camas, ruled as a catalogue.

Best camas varieties & cultivars

Camassia quamash; C. leichtlinii (larger)

VI

Sources & plant ID

Where the care distinctions come from, and how the plant is filed.

Research basis

Sources behind this profile

No extension citations are attached to camasyet. The care figures below come from the library's own catalogue rather than a traced primary source.

Plant ID

BinomialCamassia quamash
FamilyAsparagaceae
TypeBulb · Perennial
USDA symbolCAQU2
OriginNative to North America
Invasive riskLow

VII

Where to buy

Third-party nurseries — not Story Thyme Farms.

Third-party nurseries, not Story Thyme Farms. Prices are theirs.

Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.

VIII

Questions

Camas questions, answered straight.

Is camas safe for kids and pets?

Camas is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. One caveat on this one: Blue camas bulb edible when properly slow-cooked; the look-alike DEATH CAMAS (white flowers) is lethal — never eat a camas bulb you can't confirm in bloom. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.

When do you harvest camas?

Bulbs were a First Nations staple food (slow-roasted for days to convert inulin to sweetness) — but see caution.

How do you propagate camas?

Offsets, division, or bulbils.

IX

Elsewhere

Where camas sits in the library.

Where camas sits in the library

Grows in the same world