Echinops – Globe Thistle, Perennials Guide to Planting Flowers

Echinops – Globe Thistle The Globe Thistle is very interesting if one likes thorny, prickly plants. The leaves are large, deeply cut and very prickly. The stems are silver-white, while the flowers are either white or a grayish metallic blue. The flower heads are round like a ball and are entirely covered with needle-like thistles All of the species bloom […]

Silphium – Perennial Plant, How to grow

The ancient Greek name referring to the resinous juice (Compositae). Rosin-wood. A genus of 15 species of hardy perennial plants with the typical composite flower. The sap is resinous, and the plants were introduced from eastern North America. Species cultivated S. laciniatum, the compass plant, so-called because the leaves often face north and south, 6-8 feet, flowers yellow, July to […]