Himalayan knotweed 'Cottosbrook Gold' 2L

Himalayan knotweed 'Cottosbrook Gold' – Golden Glow in the Garden

Himalayan knotweed 'Cottosbrook Gold' (Persicaria amplexicaulis 'Cottosbrook Gold') is a unique variety, distinguished by beautiful, golden-yellow leaves and intensely red, slender inflorescences. Its contrasting colour gives the beds an extraordinary lightness and introduces vivid colour accents to the garden. It is a long-flowering plant that is easy to grow and resistant to harsh conditions, making it an ideal choice for any garden.

Main characteristics of Himalayan knotweed 'Cottosbrook Gold'

Flowers

• Colour: Intense red.
• Shape: Slender, elongated spike-shaped inflorescences hovering above the leaves.
• Flowering period: June–October, providing a long-lasting decorative effect.
• Decorativeness: Tall, delicate inflorescences swaying in the wind give the beds a dynamic look.

List

• Colour: Golden yellow, which can have a lime green hue in full sun.
• Shape: Large, elliptical, densely set on stems.
• Seasonality: Semi-evergreen – in warmer climates, some of the leaves may persist in winter.
• Decorativeness: They form a compact, lush clump, which is the background for intense red inflorescences.

Cut

• Form: Dense, erect shrubby habit.
• Height: It reaches 60–80 cm, with flowers rising above the leaves.
• Width: It grows 60–90 cm, forming impressive, compact clumps.

Cultivation requirements of Himalayan knotweed 'Cottosbrook Gold'

Location and soil

• Position: Full sun or partial shade – in full sun, the leaves take on a more intense, golden hue.
• Soil: Fertile, well-drained, moist but well-drained. It prefers slightly acidic to neutral soils.
• Humidity: It tolerates moderately humid conditions, but after rooting, it tolerates periodic droughts well.

Watering and fertilizing

• Watering: Regular watering in the first year after planting; later it is more resistant to drought.
• Fertilization: In spring, it is advisable to use organic fertilizer or compost for lush growth.

Care

• Trimming: After flowering, you can remove faded inflorescences to encourage re-flowering.
• Reproduction: By dividing the clumps in early spring or autumn.
• Wintering: The plant is fully frost hardy (zone 4–8) and does not require additional protection for the winter.

Application of Himalayan knotweed 'Cottosbrook Gold'

Flower beds and garden compositions

• Mixed discounts: It goes perfectly with ornamental grasses, coneflowers, rudbeckias, sage and asters.
• Accent colour: Its golden leaves and red flowers create a unique contrast in the garden.

Edging and paths

• Perfect for planting bed edges and along paths, where its colourful clump accentuates the boundaries of the composition.

Naturalistic and rural gardens

• It works well in prairie and naturalistic gardens, introducing structural variety.

Plant for shade and partial shade

• It can be planted in slightly shaded places, where its leaves beautifully illuminate the space.

Plant Specifications

• Flower pot: 2 liters
• Age: 2 years old
  
• Frost resistance: Yes