(Sneezewort)

Sneezeweed in The Pearl Group vary in size but all have double flowers. These spreading herbaceous perennials originate from regions across Europe and Russia and their fully double flowers are ivory or white. Plants in this group also tend to be more compact than average.

In spring they form vigorous clumps of linear dark green leaves that emit a strong scent when crushed. They produce loose clusters of double white blooms. The small flowers rise from slender leafy stems in summer. Regular...

(Wooly Yarrow)

This Achillea species, also known as Wooly yarrow, is a small hardy perennial from southern Europe and western Asia with distinctive gray-green leaves that are lined with so many chubby leaflets that they look almost wooly. The leaves spread close to the ground in a thick, mussy mat from which flower stems rise, topped with a dense cluster of small yellow flowers. Bloom starts in early summer and continues to early fall.

Wooly yarrow has several uses:it can make a thick, flowering groundcover,...

(Golden Fleece Wooly Yarrow, Wooly Yarrow)

This yarrow cultivar is a mat-forming, hardy, herbaceous perennial with distinctive toothy, hairy leaves that look as if a spider had covered them with silk. The tousled mat of leaves is very low and the flower stems rise only a little higher. The flower custers are tightly made of many gold-yellow flowers with blunt petals and a promiment gold center. Flowering is profuse from early summer to early fall. The parent is wooly yarrow, a species native to southern Europe and western Asia.

Wooly...

(Goldie Yarrow, Wooly Yarrow)

This Achillea species, also known as Wooly yarrow, is a small hardy perennial from southern Europe and western Asia with distinctive gray-green leaves that are lined with so many chubby leaflets that they look almost wooly. The leaves spread close to the ground in a thick, mussy mat from which flower stems rise, topped with a dense cluster of small yellow flowers. Bloom starts in early summer and continues to early fall.

Wooly yarrow has several uses:it can make a thick, flowering groundcover,...

(Dwarf Wooly Yarrow)

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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(Dwarf Wooly Yarrow, King Edward Yarrow)

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...

(Monkshood, Sparks Monkshood)

A hybrid tuberous monkshood, 'Sparks Variety' is notable for its tall, thin stems bearing deeply lobed leaves and a terminal branched cluster of deep-violet flowers. Draped with a curious petal-like bract that resembles a hood, the eye-catching flowers give the plant its common name.

This perennial needs well-drained soil with uninterrupted moisture. It grows and flowers best in cool soil and partial sun but will tolerate full sun. The stems may need staking. Note that all parts of the plant...

(Carmichael's Monkshood)

Autumn flowered monkshood is a tuberous-rooted perennial originally from China and valued for its late season bloom. The leaves are produced in mounds and are delphinium-like, dark green, deeply dissected, toothed and have a leathery texture. Deep blue-violet flowers, each curiously shaped like a helmet or hood are produced atop leafy, tall, stately spikes in late summer and fall.

Plant monkshood in evenly moist but not wet soil. Full sun to partly shady locations are preferred. Monkshood grows...

(Carmichael's Monkshood)

Autumn flowered monkshood is a tuberous-rooted perennial originally from China and valued for its late season bloom. The Arendsii group hybrids are known for their compact, sturdy flower spikes, large leaves and azure-blue blooms. The leaves are produced in mounds and are delphinium-like, green, deeply dissected, toothed and have a leathery texture. Deep blue flowers, each curiously shaped like a helmet or hood are produced atop leafy, tall, stately spikes in late summer and fall.

Plant monkshood...

(Bicolored Monkshood, Monkshood)

With both handsome foliage and a wondrous display of blue, white or violet flowers in late summer or early fall, bicolored monkshood is a hybrid resulting from the cross of Aconitum napellus and Aconitum variegatum. The glossy leaves are produced in mounds and are dark-green, deeply dissected, toothed and have a leathery texture. Deep blue-violet and white flowers, each shaped like a helmet are produced in loose clusters atop leafy, tall spikes in late summer and fall.

Plant...