Tuesday, July 12, 2011

Gardening With Herbaceous Perennials Plants


Delphinium "Ariel" Elatum group Candle larkspur
Broad, light blue blooms with a white eye. Growing to a height of around 4 feet 4 inches (1.3 meter), "Ariel" is one of the smaller cultivars in the Elatum group.
Delphinium "Butterball" Elatum group
The small "Butterball" differs from the— admittedly very pretty—blue standard, with its mass of semi-double, creamy-white flowers with yellow centers.
Delphinium "Faust" Elatum group
The long, semi-double flower spikes come in a magical dark cornflower blue, lightly tinged with purple.
Delphinium "Fnsteraarhorn" Elatum group
The single, gentian-blue blooms with their mysterious black centers are enchanting in every way. The flower stems are not susceptible to wind damage.
Delphinium Larkspur
During its flowering period, the larkspur, with its distinctive, long, dense flower spikes, is right at the center of events. This "blue classic" comes in a variety of different shades, from creamy- white and light yellow through pink to various tones of blue and violet. As well as the wild varieties, which are suitable for informal and rock gardens, there are three distinct groups of hybrids. The largest and most important group is that of the Elatum hybrids, which has produced particularly robust, long-lived plants. Belladonna hybrids have a relatively low habit, up to around 3 feet 4 inches (1 meter) and loose flower panicles. The short-lived Pacific hybrids have a short flowering period, but large, semi- double blooms.
Larkspurs love sunny places, preferably sheltered from the wind, and a fertile, deep, well-drained soil. They are typically planted at the back of an herbaceous border. If you cut them back after the first flowering, they will flower again in late summer. Tall varieties require support. Take care: seeds and leaves are poisonous.
Delphinium “Polarnacht" Elatum group Candle larkspur
A rigidly  upright-growing, small Elatum hybrid with spikes of violet flowers with white centers. It produces a very strong impact at a distance and makes a beautifully decorative cut flower.
Delphinium "Skyline" Elatum group Candle larkspur
The large, white eyes, lightly tinged with blue, contrast beautifully with the semi-double, sky-blue flowers.
Delphinium grandifiorum 'Blue Butterfly" Siberian larkspur
D. grandifiorum is larkspur's miniature version. This loosely branching perennial is extremely short-lived, and so it is often treated as an annual or biennial, but it does self-seed. The brilliant blue flowers of "Blue Butterfly" contrast beautifully with the finely-lobed, dark green foliage. This plant's low-growing habit makes it suitable even for exposed situations.
Delphinium "Astolat" Pacific group
The American hybrid can be propagated by seed. This variety has very large-bloomed flower heads with densely-packed, semi- double, pink to lilac blooms. Outstanding cut flower.

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