Persicaria affinis

Persicaria affinis, aka Lesser Knotweed or Himalayan bistort, is a mat-forming ground cover that looks its best in wet soil but is also considered drought-tolerant once established. Semi-evergreen in warmer climates, it may die down completely in our Pacific NW winters but then again, it may not. Three-inch tall flower spikes appear from summer into the fall, opening pink but fading to white. Though not invasive, Persicaria will spread if given the room, and will creep over retaining walls and garden stones. It can also be used to cover slopes or under shrubs.    

Common Name: Lesser knotweed, Himalayan bistort

Plant Type: Perennial

Mature Size: 8" 12" tall, up to 24" wide

Growth Rate: Moderate

Cold Hardiness: -10°

Light:

• Full Sun
• Afternoon Sun
• Morning Sun

Foliage Color: Green

Bloom Color: Pink

Bloom Time:

• Summer
• Fall

Structure: Ground cover

Characteristics:

• Attracts pollinators
• Container Lover
• Drought tolerant once established
• Wet-area tolerant
• Deer-resistant

Photos: Real images, not stock photos

Please Note: When Ground Shipping is selected, plants will be shipped on the following Monday to help maintain the plant quality.