Call us today: 0333 400 0033

100% Satisfaction Guarantee

Refer A Friend And Get 20% Off*

Track Your Order

Our Customers Rate Our Excellent Service

Home>>>>


Special Offers

5 Tulip 'Ice Cream' bulbs £3.99 with any order

16 Hyacinth bulbs £3.99 with any order

2 Clematis Jumbo Plug plants £3.99 with orders over £30

Eryngium 'Magical Blue Globe'Sea Holly

2 Options from £9.99

Hardy Perennial
What is Hardy Perennial?
A plant that lives for more than two years.
Capable of withstanding outdoor winter temperatures down to -15C.
1 Review

A superb hardy perennial for hot, sunny borders

Compact habit, perfect for adding texture to the front of borders

Domed flowers change from silvery-blue to deep indigo

Great as a cut flower, either fresh or dried

1 x 7cm potted eryngium plant £9.99 Despatch: by end of May 2020
3 x 7cm potted eryngium plants £19.98 Despatch: by end of May 2020
Please note: This product cannot be delivered outside the United Kingdom.
Description How to Grow More Info Delivery Reviews
Sea Holly makes a superb hardy perennial for hot, sunny borders. Thriving on gritty soils, it is tough, resilient and reliable. This variety boasts a compact habit, and attractive, sculpted foliage. The silvery stems are topped with domed flowers and surrounded by a delicate collar of soft green bracts. The small green globes mature through silvery-blue to a deep indigo colour as summer progresses. Eryngium 'Magical Blue Globe' is perfect for bringing texture to the front of borders, especially in challenging coastal regions. It also makes a fine cut flower, either fresh or dried. Height: 50cm (20"). Spread: 40cm (16").

Plant height and spread is seasonal therefore we list by pot size rather than a defined plant size. The height and spread of the plant delivered will vary depending on the season, meaning arrival images are an indication only.


Cottage Gardens, Wildlife Gardens, Cut Flower Garden, Coastal Garden

Hardy

full sun

Up to 50cm (20in)

Up to 40cm (16in)

easy

easy

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. Sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this, so regretfully we are unable to ship live plants to the following areas: HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR24, ZE1-ZE3

1 x 7cm potted eryngium plant (KB0909)
3 x 7cm potted eryngium plants (KB0910)

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
JULAUGSEP
Flowering Months
Feed and water regularly throughout the growing season until plants are fully established. Leave faded eryngium flower heads in place until spring to benefit from the winter interest they will add to your borders. In cold wet soils, use a cloche to protect the crown of the plant from winter rainfall. Lift and divide overcrowded clumps of eryngium in spring. Only lift it when necessary as sea holly can be slow to re-establish.
Grow sea holly plants on light, well drained soil in full sun. Eryngium plants particularly dislike cold, wet soil in winter which may cause the crown to rot. If planting on heavy soils, dig in plenty of coarse grit to improve drainage prior to planting.

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 £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.

Satisfaction Guaranteed

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.

RedEye