Photo by Melody

PlantFiles: Santa Cruz Island Buckwheat
Eriogonum arborescens

Family: Polygonaceae
Genus: Eriogonum (er-ih-OG-uh-num) (Info)
Species: arborescens (ar-bo-RES-senz) (Info)

One vendor has this plant for sale.

One member has or wants this plant for trade.


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Late Summer/Early Fall


Other details:
Drought-tolerant; suitable for xeriscaping
Flowers are good for cutting
Flowers are good for drying and preserving

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
8.6 to 9.0 (strongly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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Thumbnail #1 of Eriogonum arborescens by Darren_Andre

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1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive smjland On Jul 1, 2006, smjland from Danville, CA wrote:

This plant thrives on a very hot hillside in Danville with very little water in heavy clay poor soil. The foliage is gray/green all year. The flowers last from late spring to winter. The flower heads can weigh down the small branches in Winter so it's best to cut the dried flower stems off.

Neutral smiln32 On Dec 3, 2004, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

This plant is a shrub and can reach a height of 3'. It has gray foliage with pink flowers that bloom from summer to winter. It is very drought tolerant once established and requires full sun. Flowers are great to use in dried flower arrangements
The flowers, leaves and seeds are all used by animals as well as birds and butterflies.


This plant has been said to grow in the following regions:

Dublin, California
Oakland, California
Richmond, California
Sherman Oaks, California

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