Eastern Mojave buckwheat or eriogonum fasciculatum as it is know botanically, is an ornamental grass with a rounded shrub growth habit. It is naturalized in desert landscapes of the western United States and is an evergreen in climates where temperatures stay above 15 degrees Fahrenheit. Eastern Mojave buckwheat is recognizable in part by its pale, whitish-pink blooms that resemble small cotton balls and appear on the plant from March through November. In some regions it is considered to be an invasive species but is also grown for its flowers in garden beds, rockeries and borders. It is a low maintenance plant that requires infrequent pruning.
Inspect your buckwheat plants regularly during watering times, to check for damaged branches or signs of disease. Cut away any damaged woody branches when you spy them and cut back any diseased foliage to a point where you reach healthy wood.
Prune once a year in the middle of winter to remove old, woody, sprawling growth and spur fresh, green and bushy growth in the spring. Remove up to one third of the old wood of the plant each year to encourage fullness and to control size and spread in keeping with the setting.
Water your Mojave buckwheat deeply after pruning to help prevent shock and prepare the plant for abundant new spring growth.