Smartweed Seeds – Pink

Smartweed, also known as Pink Knotweed or Pinkweed, is a vibrant wetland plant valued for its dense clusters of small pink flowers. It thrives in moist soils, along ponds, and in garden edges, adding a natural splash of color. This easy-to-grow plant attracts pollinators such as butterflies and bees, making it an excellent choice for ecological and ornamental gardening.

Features and Specifications:

• Plant Type: Annual or perennial flowering plant

• Variety: Pink Knotweed (Polygonum)

• Growth Habit: Upright, spreading with dense pink flower clusters

• Bloom Time: Late spring through fall

• Maturity: Approximately 80–100 days from germination

• Growing Season: Warm season

• USDA Hardiness Zones: 4–9

• Sowing Months:

  • Zones 4–6: April–June

  • Zones 7–9: March–May

• Light Requirements: Full sun to partial shade

• Soil Requirements: Prefers moist, rich soil; tolerant of wet conditions

• Watering: Regular watering, keep soil consistently moist

• Height: 18–36 inches tall

• Uses: Wetland borders, pond edges, pollinator gardens, and naturalized landscapes