Polygonum filiforme (Japanese Knotweed)

40 (70)cm, Japanese Knotweed, (syn. Antenoron filiforme) is a fast growing herbaceous perennial with yellowish-green leaves with red markings and lax racemes with reddish-violet flowers. Easily grown in any humus rich, well drained soil in a sunny to partially shaded spot with sufficient moisture in summer. VI-VIII.
20 seeds per package.