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Eryngium leavenworthii - Kew Flowerhouse CollectionSea Holly, Leavenworth Eryngo

Hardy Annual

What is Hardy Annual?
A plant that completes its entire life cycle (growth, reproduction, death) in one season.
Capable of withstanding outdoor winter temperatures down to -15C.

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These packets are produced in association with Kew Gardens

Unusual vivid purple bracts

A magnet for bees and butterflies

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Height Up to 75cm (30in)
Spread Up to 25cm (10in)

Hardy Annual

patiokitchen gardencottage gardenswildlife gardenscut flower gardencoastal garden

full sun

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Sowing Months Flowering Months Harvest Months

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Description

The Kew Flowerhouse range of seeds from Thompson and Morgan has been specially created alongside the experts at Royal Botanic Gardens, Kew, to bring the beauty of the garden inside. This outstanding range of handpicked seeds are perfect for enjoying in the garden or in the home. This range includes show-stopping flowers and elegant floral fillers ideal for a bouquet.

Eryngium leavenworthii is a lesser-known annual variety which deserves to be more widely grown. Its annual life cycle means that it is a prolific flowerer, producing masses of spiky bracts in a stunning metallic violet, earning it the common name of ‘Purple Pineapple’. It’s known for attracting masses of bees and butterflies and makes an excellent subject for a dry and sunny Mediterranean border where it looks fabulous with yellow Achilleas. Allow some plants to self-sow to create random drifts through borders. Height 50-90cm (20-36in).

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How to sow flower seeds
Reasons to buy your seeds from Thompson & Morgan

Show Codes

1 Packet (25 seeds) (KC9709)

Sowing
Sow February to April or September for overwintering. Sow seed on the surface of a good, free-draining, damp, seed compost and cover with a fine sprinkling of compost or vermiculite. Seal container inside a polythene bag or place in a propagator at 18-21C (65-70F) until after germination which usually takes 5-10 days. Do not exclude light as this helps germination.

Transplant when large enough to handle into 7.5cm (3in) pots. Gradually acclimatise plants to cooler conditions for a few weeks before planting out after all risk of frost, 45cm (18in) apart. Overwinter September sowings in a coldframe and plant out the following spring.

More Info
Grow in full sun in freely draining soil. Keep plants well watered until established.
Delivery

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.

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Eryngium leavenworthii - Kew Flowerhouse Collection

Eryngium leavenworthii - Kew Flowerhouse Collection

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