Pink-Headed Knotweed - Persicaria capitata - Dense carpet groundcover - Fresh Seeds

Pink-headed knotweed (Persicaria capitata) is a highly decorative trailing plant that can transform a garden corner, patio, or balcony with very little effort. Its small, round flower heads in soft shades of pink stand out beautifully against green-brown foliage. Growing to around 10-20 cm tall, it forms a dense carpet that works well as groundcover or as part of mixed ornamental plantings. It is an ideal choice for anyone who enjoys natural beauty and wants an easy-care plant with a strong visual impact.

Sowing depth

Sow the seeds at a depth of about 0.5 cm. This provides good conditions for germination and supports healthy early growth.

When to sow under cover

Sow under cover in March and April. This gives young plants time to strengthen before they are moved to their final position. In warm conditions, seedlings emerge quickly and form compact, sturdy clumps.

Planting time

Plant out in the second half of May, once the risk of frost has passed. At this time, the plants establish easily and begin growing vigorously.

Spacing

Space plants about 25 x 25 cm apart. This allows them to spread freely and create a thick, colourful carpet without unattractive gaps.

Flowering period

Pink-headed knotweed flowers for a long time, from July to September. During this period it becomes a standout feature in beds, edging, and containers, thanks to its delicate blooms and distinctive leaf colouring.

Growing tips

This plant grows best in full sun or light shade. It prefers free-draining, moderately moist soil that is lightly fertile. It is not fully frost hardy, so in cooler conditions it is best grown in pots that can be moved to a warm place in autumn. It looks especially attractive in hanging pots and balcony boxes, where the stems can trail gracefully. Regular watering and removing spent flowers help keep it looking fresh and decorative all season.

Why buy from GardenSeedsMarket

When you choose seeds from GardenSeedsMarket, you can be confident you are buying a high quality product. The seeds come from controlled, certified cultivation and are carefully selected for purity and strong germination. Orders are processed quickly with attention to safe delivery, and GardenSeedsMarket specialists can help you choose suitable plants and advise you on how to achieve the best results. Regular laboratory testing supports healthy, vigorous growth and abundant flowering, so you can enjoy reliable results.

Pack contents

The pack contains 0.1 g of seeds. The packaging includes growing guidance and the sow-by date.