Persicaria rucinata 'Needham's Form' sits within the genus Persicaria (family Polygonaceae), a group of herbaceous plants often called knotweeds or smartweeds. Members of the genus display a variety of stem habits and leaf shapes, and their flower structures range from loose panicles to spike-like clusters. That botanical range explains why individual cultivars can differ in habit and appearance. Growers should follow the supplier’s cultivation notes for this specific cultivar because recommended aspect, soil type and hardiness can vary across Persicaria selections. Where those details are not provided, observe the plant after planting and adjust siting or soil to suit its established behaviour. Many gardeners assess performance over a season before finalising a location. In a UK garden this cultivar is most useful for adding summer flowering interest; plan its use where a July to September display is valuable. Plant it with perennials that have complementary flowering times so the bed has rhythm through the season. The plant’s defined flowering window — July to September — is its principal seasonal feature and should guide planting decisions.

Persicaria rucinata 'Needham's Form' is a cultivar of Persicaria in the knotweed family Polygonaceae. Persicaria comprises herbaceous species commonly referred to as knotweeds or smartweeds, with diverse stem and leaf forms. This cultivar produces flowers from July to September. Consult the supplier for specific notes on flower and foliage appearance.

Persicaria rucinata 'Needham's Form' is a Persicaria cultivar that flowers from July to September.

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