General Plant Information (Edit)
Plant Habit: Fern
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Dry
Soil pH Preferences: Very strongly acid (4.5 – 5.0)
Moderately acid (5.6 – 6.0)
Moderately alkaline (7.9 – 8.4)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 11
Fruit: Other
Fruiting Time: Late winter or early spring
Fall
Flowers: Nocturnal
Flower Color: Green
Red
Bloom Size: 1"-2"
Flower Time: Late winter or early spring
Year Round
Propagation: Seeds: Suitable for wintersowing
Pollinators: Beetles
Wind
Miscellaneous: Endangered
Conservation status: Extinct (EX)
Ploidy: Septaploid

Image
Common names
  • Prostrate Knotweed
  • Knotweed
  • Doorweed
  • Birdgrass
  • Waygrass

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