Call us today: 0844 573 1818 Calls cost 7p per minute plus your phone company's access charge

100% Satisfaction Guarantee

Track Your Order

Award Winning Varieties

Voted Best Online Retailer

Our Customers Rate Our Excellent Service

Home


Special Offers

5 petunia plants only £2.99 with every order

Snips only £1.99 with every order

5 fuchsia plants only £3.99 with orders over £25

Echium pininana alba 'Snow Tower'Tower of Jewels, Giant Viper's Bugloss, Tree Echium, Echium pinnifolium

Just £1.49

Hardy Biennial
What is Hardy Biennial?
A plant that completes its entire life cycle in two years, growing in
the first year and reproducing and dying in the second. Capable of withstanding outdoor winter temperatures down to -15C.

We are really sorry, but this product is no longer available.

Description Sowing More Info Delivery
Rare white-flowered form of this popular garden giant! The cascades of tightly-packed florets appear in the second year from the silver-green rosette and can reach an incredible height.

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


Wildlife Gardens, Exotic Garden, Specimen Plant, Coastal Garden

Hardy

Full sun

Up to 360cm (141.7in)

Up to 100cm (39.4in)

Easy for all

Easy for all

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
MAYJUNJUL
JUNJULAUGSEP
Sowing Months Flowering Months

Protect plants with a layer of bracken over the winter months.

Caution: skin irritant
Sow Late May to July at 20-30C (68-86F) on the surface of a good free-draining damp seed compost. Apply a very fine sprinkling of compost or vermiculite, 3mm (1/8in) thick. Place in a propagator or seal container inside a polythene bag until after germination which usually takes 16-22 days. Do not exclude light at any stage as this is beneficial to germination.

Pricking out (Transplanting): Transplant when large enough to handle into 7.5cm (3in) pots and overwinter in a cool greenhouse or on a windowsill, giving an optimum temperature of around 7C (45F). Planting out: Plant out the following Spring, 1m (3ft) apart in a well drained soil in full sun.

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 details of any surcharges that may apply to certain destinations.

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.