The illustrated growing guide

Golden Alexanders

Zizia aurea

Family Apiaceae

Est. zones 3-8

Botanical illustration of Golden Alexanders
Perennial · Zizia aurea

A humble but essential native — early flat clusters of golden flowers that feed small bees and beneficials right when the pollinator year is getting going, plus host duty for black swallowtail caterpillars. Adaptable, unfussy, and gently self-sowing, it's a foundation plant for pollinator and rain gardens, lovely with blue camassia and wild geranium.

Perennial · NativeFull Sun to Part ShadeModerate waterModerate growthNative to North AmericaAttracts butterfliesAttracts bees

Where to buy the plant — 1 nursery

Golden Alexanders — a print from the Wildflowers Vol. 3 collection

From the print shop

Growing golden alexanders? Hang it.

Our Wildflowers Vol. 3 collection carries golden alexandersZizia aurea, print Nº 2, “Golden Alexanders.”

16 designsfrom $21.99white or black groundmatte poster, unframed

Shop Wildflowers Vol. 3 botanical prints →

I

Overview

Will golden alexanders 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 golden alexanders actually needs.

Hardy inZones 3-8

Golden Alexanders at a glance

HardinessUSDA 3–8
Mature size1-2 ft
PollinationAn EARLY-season pollinator workhorse; a host plant for black swallowtail butterflies
Chill requirementNot yet established
Bloom seasonLate Spring - Early Summer — flat golden-yellow flower clusters
Harvest seasonSeeds and self-sowing
Growth rateModerate

Common golden alexanders problems

  • Almost none
  • Almost none

II

Growing

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

How to grow golden alexanders: light, water & soil

LightFull Sun to Part Shade
WaterModerate; adaptable to moist or average
SoilRich, moist · pH 6.0 - 7.5
FertilizerNone
PruningCut back after bloom if desired — An easygoing, early-blooming native that fills the crucial late-spring pollinator gap with flat golden flower clusters feeding small native bees and beneficial insects — and it's a host plant for black swallowtails. Adaptable to sun or part shade, moist or average soil, and it self-sows gently into a reliable colony. A foundational native for any pollinator or rain garden.
Spacing12-18 in

How to plant & propagate golden alexanders

PropagateDivision or seed

III

The year

What golden alexanders asks for, month by month.

The golden alexanders year, month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Bloom

What each band means

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

The golden alexanders year as text

  • Jan quiet month
  • Feb quiet month
  • Mar quiet month
  • Apr quiet month
  • May bloom
  • Jun bloom
  • 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.

Golden Alexanders in the garden system

  • Herbaceous layer perennial
  • Nectary/insectary
  • Hosts Black swallowtail butterfly
AttractsButterflies, Bees
HabitatWetland
MoistureWetland / wet-tolerant
DeerBrowsed — protect young plants
OriginNative to North America

What golden alexanders is grown for

✓ Commonly eaten

UseEarly pollinators
UseSwallowtail host
UseRain gardens
UseNative

Harvesting & storing golden alexanders

Seeds and self-sowing.

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 golden alexanders, ruled as a catalogue.

Best golden alexanders varieties & cultivars

Species; Zizia aptera (heart-leaved alexanders, similar)

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 golden alexandersyet. The care figures below come from the library's own catalogue rather than a traced primary source.

Plant ID

BinomialZizia aurea
FamilyApiaceae
TypePerennial
USDA symbolZIAU
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

Golden Alexanders questions, answered straight.

Is golden alexanders safe for kids and pets?

Golden Alexanders 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. 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 golden alexanders?

Seeds and self-sowing.

How do you propagate golden alexanders?

Division or seed.

IX

Elsewhere

Where golden alexanders sits in the library.

Where golden alexanders sits in the library

Grows in the same world