(Snapdragon)

The heavy blooming, compact snapdragons in the Twinny Series are double and lipless, so technically they don't snap. The "butterfly" blooms come in lots of pretty colors including the 2010 All-American Selections winner, 'Twinny Peach.' They are noted for their heat tolerance and high-performance as well as beauty. Members of the Twinny Series were bred by HEM Genetics.

Commonly grown as an annual, snapdragon is actually a short-lived perennial that originates from southwestern Europe and the...

(Celeriac)

Little known in the United States, celeriac is grown for its rather homely edible rootstock. The cultivar 'Brilliant' has relatively smooth, medium-large, buff-colored "roots," with firm white flesh. Thought to have originated in northern Europe, celeriac is a variety of celery (Apium graveolens), a widely cultivated biennial native to Europe, Southwest Asia, and North Africa. This vegetable is also known as celery root or knob celery.

Protruding from the soil like a knobby,...

(Celeriac)

Little known in the United States, celeriac is grown for its rather homely, bulbous, edible stem and roots. Thought to have originated in northern Europe, it is a variety of celery (Apium graveolens), a widely cultivated biennial native to Europe, Southwest Asia, and North Africa. Celeriac is also known as celery root or knob celery.

Protruding from the soil like a knobby, partially buried baseball, the edible "root" gives rise to long fleshy stalks bearing deep green, incised,...

(Clementine Blue Columbine, Columbine)

A compact habit and densely packed double flowers characterize members of the Clementine Series. In early to late spring neat, dwarf plants put forth masses of double, spurred blooms that may be red, white, purple, violet-blue, pink or salmon, depending on the cultivar.

These columbine do best in sites with partial sun and fertile, well drained soil. They are attractive to bees, butterflies and hummingbirds and work well along the edges of mixed borders or in spring containers.

(Clementine Red Columbine, Columbine)

A compact habit and densely packed double flowers characterize members of the Clementine Series. In early to late spring neat, dwarf plants put forth masses of double, spurred blooms that may be red, white, purple, violet-blue, pink or salmon, depending on the cultivar.

These columbine do best in sites with partial sun and fertile, well drained soil. They are attractive to bees, butterflies and hummingbirds and work well along the edges of mixed borders or in spring containers.

(Clementine Salmon Columbine, Columbine)

A compact habit and densely packed double flowers characterize members of the Clementine Series. In early to late spring neat, dwarf plants put forth masses of double, spurred blooms that may be red, white, purple, violet-blue, pink or salmon, depending on the cultivar.

These columbine do best in sites with partial sun and fertile, well drained soil. They are attractive to bees, butterflies and hummingbirds and work well along the edges of mixed borders or in spring containers.

(Columbine, Maxi Star Columbine)

This hybrid columbine offers big golden blooms early in the season. One of its parent species, Colorado blue columbine (Aquilegia coerulea), is native to a large part of the American west where it thrives in the woodlands of the Rockies and other arid mountain ranges.

The vigorous ‘Maxistar’ produces clumps of lush foliage in spring. The blue-green leaves are three-parted and have a texture similar to that of maidenhair fern. While plants are attractive during the blooming season,...

(Golden Columbine)

Heavy blooming and delicate, Colorado or golden columbine is a perennial native to the southwestern United States and northern Mexico. In the late spring to early summer it produces lightly fragrant, intricate lemon yellow flowers with long, curved, back-facing spurs that hold nectar for the butterflies and hummingbirds that visit them. These are subtended by ferny green foliage that looks good early in the season but wanes towards the end of summer.

Plant this fine perennial in rich, evenly...

(Denver Gold Columbine, Golden Columbine)

A selection of Aquilegia chrysantha, a species native to the southwestern United States and northern Mexico, ‘Denver Gold’ features extra-large, open, brilliant golden-yellow flowers adorned with long, curving, reflexed spurs. The showy, fragrant blooms shine atop tall, well-branched stems in spring, and will continue to appear throughout the summer if faded flower stems are cut back regularly. Its compact, fern-like, mounds of foliage remain attractive throughout the season if kept evenly...

(Golden Columbine, Yellow Queen Columbine)

Columbine ‘Yellow Queen’ is a selection of Aquilegia chrysantha, a species native to the southwestern United States and northern Mexico. It features large, fragrant, soft-yellow flowers adorned with long, curving, reflexed spurs, which bloom in spring atop tall, well-branched stems. The showy blossoms are displayed high above compact, fern-like, mounds of foliage, and will continue to appear throughout most of the summer if faded flower stems are cut back regularly.

Aquilegia...