Diascia barberae 'Rose Queen' - Kew Collection SeedsTwinspur

As soon as the seedlings are large enough to handle, transplant into boxes. Pinch out the growing points when 5cm (2in) tall and again when the side shoots reach 5cm (2in). Gradually acclimatise to outdoors conditions for 10-15 days before planting out after all risk of frost 15cm (6in) apart in full sun in ordinary, well drained soil.

As the flowers start to fade the plants can be cut back with scissors to around 7.5cm (3in) above soil level and they will re flower. Repeat again late in summer for early autumn flowers.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.