Wednesday, July 9, 2014
Drought Tolerant Plants
July and August begin our season of sizzle as the garden dries rapidly with the overhead heat. One must prepare for these inevitable conditions by including an array of sun-loving, drought tolerant perennials… and few plants withstand dry conditions as well as the Sedum genus. With over 300 species available, there is one for every garden setting.
Native to regions in the northern hemisphere Sedums are among the most hardy and durable plants, and will endure where all other plants may perish. They are also called Stonecrop for their habit of living almost anywhere including mounds of stone, piles of gravel, even growing well while tucked into chinks in a rock wall. Their plump fleshy leaves are their secret to survival, storing water for the plant to use during extremely dry spells.
Sedum is not susceptible to pests who are repelled by their stout leaves, however butterflies and bees are abundant about the blooms. Easy to propagate, simply break a leaf or stem from the Mother plant, shove it into a hole the size of an index finger, tamp the soil, lightly water, and a new plant will emerge. ‘Autumn Joy’ (pictured) is among the most popular, blooming profusely from the hottest days of Summer until the first freeze.
Another interesting addition to the drought garden is Sempervivum Tectorum, commonly known as Hen and Chicks, which were first recorded by the Greek botanist Theophraste, during the 4th century BC. Grown under identical conditions as the Sedums, this fascinating little plant is a mat-forming succulent that produces clusters of rosettes. The parent rosettes are the ‘hens’ and the smaller rosettes that spring from them are the ‘chicks‘. Children find the habit of producing ‘chicks’ extremely interesting, making it a wonderful lure to the garden.
Both Sempervivum and Sedum are considered ‘Old World Treasures’ and are associated with mythology. The Romans called them ‘Beard of Jupiter’ and planted them on roofs to guard against lightning… Sempervivum tectorum is taken from the Latin ‘tectum‘ which means ‘roof’. This myth spread throughout Europe to Ireland and in Scandinavian countries both plants were called Thor’s Helper’ where they were believed to drive off demons and guard homes if planted on roofs. According to folk wisdom, one may hang sedum on a wall in midsummer and it may foretell the outcome of affairs of the heart. Both are reputed to have the medicinal benefit of an energy boost however today they are best used as ornamentals. As the heat continues to escalate, these plants are indeed garden treasures!