(Noblessa Sneezeweed, Sneezewort)

(Sneezewort, The Pearl Achillea)

The pretty sneezeweed ‘The Pearl’ is a vigorous, spreading herbaceous perennial that originates from regions in Europe to Siberia. It is markedly more compact than standard sneezeweed and its flowers are fully double and pure white.

In spring it forms vigorous clumps of linear dark green leaves that emit a strong scent when crushed. This cultivar produces many clusters of double white blooms. The small fully double flowers rise from slender leafy stems in summer. Regular deadheading encourages...

(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.

...

(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...

(Striped Sweet Flag, Sweet Flag)

Striped sweet flag is an herbaceous perennial that is native throughout much of the Northern Hemisphere. It has inconspicuous flowers and is grown primarily for its tall, upright, broad, iris-like foliage. Acorus calmus 'Variegatus' has very showy white bordered leaves. These plants spread by rhizomes (underground stems) and grow best in moist boggy areas with full to partial sun. Semi-aquatic in nature, sweet flag works well in naturalistic plantings along waterways or in gardens with moist,...