Bupleurum rotundifolium 'Green Gold' - Kew Flowerhouse Seed CollectionThorow-Wax, Common Hare's Ear

Direct sow Bupleurum seed outdoors where they are to grow from March to May or in September for overwintering. Autumn sowings will flower in late spring. Choose a position in full sun on any well drained soil which has been raked to a fine tilth. Sow seeds thinly but do not cover as light will aid germination. Water the ground regularly, especially during dry periods. Germination usually takes 14-30 days. When seedlings are large enough to handle, thin them out to 40cm (16") apart.

Alternatively, sow Bupleurum indoors from March to May at a temperature of 15-29C (59-84F). When seedlings are large enough to handle, transplant and grow them on in cooler conditions until large enough to plant outdoors.

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.