Characteristics Garden Flowers Giant Knotweed. Height of plant (cm) higher 100 cm. Fragrant flower fragrance. Flower size small. Type of stem erect. Method of cultivation non seedlings. Shelter in winter shelter is not required. Not poisonous plant. Water needs moderate. Light needs semi-shade, full sun. Timing of flowering august, july. Cold hardiness zone 4 (-34 to -29°C), 5 (-29 to -23°C), 6 (-23 to -18°C), 7 (-18 to -12°C), 8 (-12 to -7°C), 9 (-7 to -1°C). Landscape use hedge, specimen, border. Neutral soil. Flower color white. Frost resistance. Lifetime perennial. Sandy loam soil, loamy soil.
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$5.99 ($0.01 / Count) 1400 English Lavender Seeds for Planting Indoors or Outdoors, 90% Germination, to Give You The Lavender Plant You Need, Non-GMO, Heirloom Herb Seeds