Persicaria x cult. 'Johanniswolke'

Upright, slender, clump-forming perennial. Forms a loose, open mound, typically reaching 80-120 cm (31-47 inches) in height and 60-80 cm (24-31 inches) in spread.

Deciduous. Slender, lance-shaped, mid-green leaves.

Produces abundant, extremely fine, cloud-like sprays of tiny, pure white flowers on wiry, branching stems, creating a misty effect. Blooms profusely from July to October, often continuing until frost. Attracts beneficial insects.

Thrives in full sun to partial shade. Best flowering in ample sunlight.

Excellent (USDA Zones 4-8). Very cold-hardy.

Prefers moist, well-drained, humus-rich soil. Tolerates a wide range of soil types but performs best with consistent moisture.

Medium water requirement. Keep consistently moist, especially during dry periods.

Ideal for perennial borders, naturalistic plantings, cottage gardens, and as a filler or "mist" plant to soften bolder colors or coarser textures. Excellent for adding late-season interest.

Low maintenance. Can be cut back after the first flush of flowers to encourage new growth and a bushier habit, though its natural form is usually quite appealing.

Best planted in autumn or early spring.