Eriogonum fasciculatum
Eriogonum fasciculatum · Polygonaceae
The gardener's calendar
Ideal time to plant eriogonum fasciculatum: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- White buckwheat, Chia flower
- Foliage
- Evergreen
- Flowering
- May to October
- Mature size
- 0.6 to 1.2 m in height and width
- Growth rate
- Fast to moderate
- Hardiness
- Hardy down to approximately −5 °C
- Origin
- Deserts and semi-deserts of the southwestern United States (California, Arizona)
- Soil type
- Well-drained, poor to average, drought-tolerant
Care
Light and exposure
Eriogonum fasciculatum requires full sun (6 to 8 hours minimum) to bloom generously. In hot Mediterranean climates, light afternoon shade can be beneficial. Avoid shaded spots, which lead to a spindly habit and sparse flowering.
Soil and planting
Choose very well-drained soil, even stony or sandy: this plant hates waterlogging. Adding sand or gravel at planting ensures optimal drainage. Neutral to slightly alkaline pH suits it perfectly.
Watering
After establishment (first year), reduce watering to the bare minimum: this xerophyte tolerates drought very well. In arid climates, a few waterings during the growing season suffice. In humid regions, cut back on watering in autumn-winter to prevent rot.
Pruning and maintenance
Light pruning in spring, after the last frosts, keeps a compact, bushy habit. Remove dead or poorly placed branches to open up the silhouette. Avoid severe pruning, which weakens the plant.
Fertilizing
Eriogonum fasciculatum needs little fertilizer: a light application of well-decomposed compost in spring is enough. In poor soil, a diluted balanced fertilizer in spring can support flowering, but stay moderate to avoid lush growth.
Diseases and pests
This plant is generally robust and rarely troubled by pests. Powdery mildew may appear in excessively humid conditions; ensure good drainage and air circulation. Watch for root rot in overly damp conditions.
Did you know?
Eriogonum fasciculatum, called 'white buckwheat' in English, was traditionally used by indigenous peoples of the southwestern United States and remains a precious plant for ecological Mediterranean gardens: its white flowers in dense spikes attract bees and pollinators all summer long, while its graceful habit brings lightness and movement to arid compositions.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.