Purple Cupflower - Nierembergia hippomanica - Delicate blooms through summer - Fresh Seeds

Purple cupflower (Nierembergia hippomanica) is a charming annual that brings a soft touch of colour and an elegant look to borders and containers. It forms compact, cushion-like clumps at around 20 cm tall, covered in masses of bell-shaped flowers in shades of purple. It flowers continuously from June until the first frosts, brightening beds, window boxes, and pots for weeks. This plant combines graceful looks with impressive toughness, staying easy to grow while still delivering a long, generous display.

Sowing depth

Sow the seeds at around 0.5 cm deep. A light covering of compost helps create the right conditions for germination and supports healthy, vigorous growth.

Sowing time under cover

The best time to sow under cover is March or April. Seeds started then usually germinate quickly and develop into strong young plants that are ready to transplant once warmer conditions are settled.

Planting time

Plant out in May, once the risk of frost has passed. At this stage, young plants establish easily and begin to fill out quickly.

Spacing

Space plants about 15 x 20 cm apart. This gives them room to develop into a dense, flowering carpet and helps maintain good airflow for healthier growth.

Flowering period

Purple cupflower typically flowers from June to September. Its delicate, bell-shaped purple blooms stand out beautifully against fresh green foliage, creating a balanced and graceful effect.

Growing guide

Grow in a sunny or lightly shaded spot in fertile, free-draining soil that stays slightly moist. As it is not frost hardy, it is grown as an annual. It looks excellent in pots, window boxes, borders, and rock gardens, with trailing shoots that can form colourful cascades. Give it a little sun and regular watering, and it will reward you with weeks of flowers.

Why buy from GardenSeedsMarket

When you choose GardenSeedsMarket, you can count on carefully selected seed for reliable results. Each seed batch is tested for germination to support successful growing. Orders are packed securely and dispatched quickly so your seeds arrive in excellent condition. The GardenSeedsMarket team is made up of keen gardeners who are happy to help you choose the right plants and share practical tips for the best outcome.

Pack contents

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