Moisture: Very Low
Summer Irrigation: Max 1x / month once established
Ease of Care: Very Easy
Cold Tolerance: Tolerates cold to 20° F
Soil Drainage: Slow
Soil Description: This plant is said to be tolerant of clay and alkaline soils. Soil PH: 6.0 – 8.0
Common uses: Groundcovers, Deer Resistant, Bird Gardens, Butterfly Gardens, Bee Gardens
Companion Plants: Island companions include Island Ironwood (Lyonothamnus fasciculatus ssp. asplenifolius), Catalina Cherry (Prunus ilicifolia ssp. lyonii), St. Catherine’s Lace (Eriogonum giganteum), Island Buckwheat (Eriogonum arborescens), Island Morning Glory (Calystegia macrostegia), Island Ceanothus (Ceanothus arboreus), Channel Islands Tree Poppy (Dendromecon hardordii), Island Alum Root (Heuchera maxima), Island Mallow (Lavatera Assurgentiflora), Island Pitcher Sage (Lepechinia fragrans), Island Oak (Quercus tomentella), Catalina Island Gooseberry (Ribes virburnifolium), and Santa Rosa Island Sage (Salvia brandegeei)
Maintenance: Deadhead to stimulate more flowers
Sunset Zones:5, 14, 15*, 16*, 17*, 18, 19, 20, 21*, 22*, 23*, 24*
Site Type: Dry, rocky cliffs and protected pockets on the northern Channel Islands where the dominant atmospheric conditions are strongly marine influenced
Climate : Annual Precipitation: 11.8″ – 15.5”
Red Buckwheat is a rare native perennial herb. It is endemic to three of the northern Channel Islands (San Miguel, Santa Rosa, Santa Cruz) but is now widely planted on the mainland. In the wild it tends to grow on dry cliffs, at elevations from 0-700 feet, although it may have been more widespread on these islands before the introduction of domestic livestock. It is a mat-forming plant producing tall, stout flower clusters of white, pink or red flowers. The naked inflorescence rises as much as 12 inches above the leaves. The flowers are held in ball-like clusters at the top, and its long bloom time in summer makes it popular with pollinators, especially butterflies. Leaves are located mainly at the base of the plant and are wavy along the edges, and up to 10 cm long; the upper side is dark green, the underside is very pale. Although it is spreading, it doesn’t spread far or fast and retains a petite form. It is useful in rock gardens, spilling over a wall, or in the understory of larger plants. Despite its island origin, it performs well inland if given some afternoon shade and a little extra water. Two other recognized varieties are found on other islands but these are not available horticulturally.
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Pick -up of purchased plants will be Saturday, July 25, from 9-11 am at the CNPS pick-up location off of Broad St in San Luis Obispo. (Note: there is no actual address for this location. It is at the East end of Francis Street in San Luis Obispo, behind Rizzoli’s Auto Repair. Please park on Francis St. while picking up plants.) A sign will be posted on the street. GPS coordinates for Pick-up location: Lat: 35.266967 degrees, Long: -120.651302 degrees. Please only place your order if you are able to pick up your plants on July 25 between 9 and 11 am. There are no options for other pickup times or dates, or shipping of these live plants.