Small gray green leaves set off the bright sunshine yellow flowers beautifully on the Sulphur Buckwheat. The flowering season is long and this plant stays very compact. This buckwheat can grow very well with little or no water. It's a great plant for a rock garden or anywhere you need to provide a mat of gray foliage and bright flowers. It is ideal for gardeners who do not have a lot of space because of its compact nature. Like the other buckwheats  this plant is attractive to insects and butterflies.