Close this search box.

Sulphur buckwheat

Eriogonum umbellatum


One of the most intense flowering perennials among the California flora is the Sulphur buckwheat. This species is a low mounding perennial, 6-18 in. high, spreading 1-3 ft. across with pale green oval-shaped leaves. Brilliant sulphur-yellow flowers occur from spring into summer. This variable species is native to cooler climate zones in many western states, and is a successful flowering perennial for 3-4 years in Inland Empire gardens.

Plant the sulphur buckwheat on well drained soils in full sun and sustain with low amounts of summer irrigation. This plant grows well in combination with other drought tolerant native shrubs and perennials on banks, around rocks, as a border plant and to attract butterflies.

Plant Type: Perennial, Native
Foliage Character: Evergreen
Habit: Spreading, Mounding
Growth Rate: Moderate
Foliage Color: Pale green, Medium green
Flower Color: Yellow
Flower Season: Summer, Spring
Soil Adaptations: Well-draining soil
Exposure Adaptations: Morning sun, All day sun, Partial sun
Function: Flowering accent plant, Borders, Attracts butterflies, Small spaces, Wildlife value, Rock gardens
Height: 6 in. – 18 in.
Width: 12 in. – 36 in.

Set your preferred view

Choose between a list or map view of all signs found in our waterwise garden and park.

Welcome to the Waterwise Garden Digital Tour

This is a digital registry created to offer further information on the physical signs in our waterwise garden and park premises.

Would you like a few tips on how to use this tool?

Move around

Travel to different sections of our garden and park premises by using the horizontal scrollbar at the top.

Locate your sign​

Using the map view, you can preview what each specific sign is about by tapping on the plus icon.

Refer back to these tips

You can view these tips at any time by tapping the Help link in the top left.