Alternanthera dentata 'Purple Knight'

Common name: Purple Knight Alternanthera

Recently listed

This plant has been listed or stocked within the last 6 months. Please call before travelling to confirm availability.

Description

Alternanthera dentata 'Purple Knight' is an annual plant valued for its striking deep purple foliage that adds vibrant colour and texture to gardens or containers throughout the growing season. It typically performs well as a bedding plant or in mixed borders where its dramatic leaves can provide an attractive contrast to other plants.

This variety prefers a sunny or partially shaded position with well-drained soil and can reach a height and spread of approximately 30 to 60 cm, making it a manageable and versatile choice. Though primarily grown for its foliage rather than flowers, it can produce small, insignificant flowers which rarely detract from its ornamental appeal.

Plant information

Genus	Alternanthera
Species	dentata
Cultivar	Purple Knight
Plant type	Annual
Foliage	Deciduous
Height	30-60 cm
Spread	30-60 cm
Growth rate	Moderate
Hardiness	Half Hardy
Toxicity (Guide Only)	Unknown
Last listed	2026-06-23

Position

Full SunPart Shade

Flower colour

Insignificant

Season of interest

SpringSummerAutumn

Features

Suitable for PotsLow Maintenance

Soil

Any SoilSandLoamWell DrainedNeutral

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