alpine

Silvery yarrow is a low-growing, semi-evergreen perennial native to the mountainous regions of Eastern Europe. It forms a dense mat of finely dissected, gray-green leaves which are aromatic and covered with soft hairs. Many flat-topped clusters of small, white flowers appear from midsummer to early autumn. They are attractive to butterflies, and contrast nicely with the silvery foliage.

This drought-tolerant plant grows best in full sun and thrives in a range of soils, but must have good drainage....

Achille sibirica is a slender hardy perennial native to the northern regions of North America and the Northern Hemisphere. The plant makes an upright stem with distinctive narrow leaves that have minutely saw-tooted edges, unlike the ferny leaves of many species in the Achillea genus. The flowers have stubby white or pink petals and a prominent yellow center. They grow in a loose cluster at the top of the stem. Flowering runs through summer and into early fall.

This species prefers full or partial...

This cultivar, 'Stephanie Cohen,' is a hardy perennial that differs from its parent, Achillea sibirica,in the color of its flower petals, which is a bluish pink. The flowers have yellow centers and are borne in a loose cluster at the top of a single stem. Theleaves are narrow and minutely saw-toothed, unlike the ferny leaves of many species of Achillea. Flowering runs through summer and into early fall.

Like the species, 'Stephanie Cohen' prefers full or partial sun on well-drained moist soil....

Delicate clusters of palest pink flowers blanket this tough perennial in early summer. In spring, the clump-forming 'Love Parade' sends up upright stems lined with glossy dark green leaves. Its long-lasting flowers are lavender pink when they first open and fade to a dirty white as they age. This hardy and resilient plant will continue to flower into early fall, if regularly deadheaded, and is attractive to butterflies.

Siberian yarrow is very easy to grow. Full to partial sun is required...

Silvery-leaved, low-growing and drought tolerant, this is the perfect small yarrow for rock gardens and sunny border edges. A hybrid of the species Achillea clavennae and Achillea tomentosa, it forms a mat of narrow, gray-green, minutely toothed leaves. Loose, flattened clusters of buttery, pale primrose flowers bloom on short stems from late spring to midsummer. These are attractive to butterflies and have a soft, pretty appearance. Regular deadheading may extend flowering.

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Silvery-leaved, low-growing and drought tolerant, this is the perfect small yarrow for rock gardens and sunny border edges. A cross between the species Achillea clavennae and Achillea tomentosa, 'King Edward' forms a mat of narrow, gray-green, minutely toothed leaves. Loose, flattened clusters of buttery, pale primrose flowers bloom on short stems from late spring to midsummer. These are attractive to butterflies and have a soft, pretty appearance. Regular deadheading may extend...

Silvery blue-gray rosettes of sharp serrated leaves and a cast iron constitution make this a vivid architectural plant for arid landscapes. This succulent evergreen perennial originates at middle elevations in the mountains of Central Mexico. It was widely cultivated in pre-Columbian times by indigenous people who grew it around the home.

The showy leaves are stiff, wide and bear the interesting impressed outlines of toothed leaves as they unfold from the plant’s central cone. The long leaves...

Use this tough little Agave in hot dry regions where few small ornamentals will survive. This species is native to southern Arizona and New Mexico, extending southward into Sonora, Mexico. It has an informal, scruffy look and maintains a cast iron nature in rocky infertile ground. The leaves contain saponifiers and were harvested by indigenous people for soap.

Schott's Agave tends to spread and form colonies. Each rosette is dense and irregularly shaped with linear, upright leaves...

Blue ornamental onion is a perennial bulb grown for its small clusters of azure blue, star-shaped flowers. In late spring to early summer, each plant puts forth multiple leafless stems topped with one flower cluster. The green strap-like foliage appears before plants bloom and often dies back before flowers the appear. This onion has a lightly oniony fragrance when its leaves or stems are crushed.

Blue ornamental onion is originates from the mountains of northern and Central Asia where it grows...

The star of Persia ornamental onion is grown for its huge globe-like cluster of shimmering pink-purple starry flowers, which rises like a flowery lollipop from a single leafless stem in the early summer. The large, strap-like gray-green basal leaves emerge slightly before the short-stemmed flower appears.

Alliums are onions and thus most have the familiar pungent fragrance when their leaves or stems are crushed. Star of Persia is native to Turkey and Central Asia where it grows in full sun and...