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Culinary note: Some parts of these flowers are edible. Try toasting the seed kernels for a healthy snack. For more details about edible flowers click here.
Companion planting: Try growing sunflowers with chives to deter aphids.
Useful links:
Cottage Gardens, Wildlife Gardens, Cut Flower Garden
Hardy
Full sun
Up to 150cm (59.1in)
Up to 50cm (19.7in)
Easy for all
Easy for all
RHS plants for pollinators
1 packet (18 sunflower seeds) (24095)
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When large enough to handle, thin out the seedlings to 30cm (12in) apart. They prefer a sunny open site but will grow in most soils. Sowing can also be done indoors in early spring, sow the seed individually in 7.5cm (3in) pots. Germination takes 1-2 weeks at 20C (70F). Gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost has gone.
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 £1.95.
Orders which include any other products will incur a delivery charge of £4.95.
Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 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.
For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.