Thompson & Morgan

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Perennial & Biennial Seeds


Biennials live for 2 years, whereas perennials live for longer. As a general rule, biennial and perennial seeds should be sown in spring, but some can be sown in autumn as well. Many varieties will self-seed after flowering, giving you even more plants!



We have found 66 products.
 

Anemone japonica (Mixed)

Japanese Anemone, Anemone x hybrida, Windflower

Elegant, late summer flowering perennials, producing their gorgeous, well shaped blooms mainly in rose to pink shades for many weeks and providing the perfect end to the summer. Happy in sun or light shade. Flowers late summer/autumn, Height: 60cm-1.2m (2-4-ft). More info
    • 1 packet (30 seeds)

    • Despatch: Within 1 days
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    • £0.99

Hellebore 'Washfield Doubles'

Helleborus x hybridus

Breathtaking, double-flowered Hellebores from the Washfield collection, bred to perfection, adding sheer delight to your borders early each year. T&M are proud to continue the breeding work started over 20 years ago by Hellebore specialist Elizabeth Strangman, and want to share her passion for these intriguing plants with you. These delightful doubles are in a wide colour range including yellows, greens, blacks, reds, apricots and much more.

We pay great care and attention to our Hellebore Washfield Mixed seed production. Trained staff painstakingly pollinate each flower by hand twice to produce the best possible quality seed. All of our seed is harvested at the peak of freshness in May and June and is then immediately packed and shipped straight out to our customers. Hellebore seed germinates at its best when sown within a month of harvest so we recommend that you sow your seeds as soon as you receive them. Height: 45-60cm (18-24in).
More info
    • 1 packet (10 hellebore seeds)

    • Despatch:
    •  
    • £0.99
    • Out of stock

Achillea millefolium 'Cassis'

Yarrow

Many stems with masses of attractive, intense cherry red flowers, over a very long period. Achillea Cassis is a first year flowering perennial, making an excellent border filler and cut flower.
More info
    • 1 packet (70 achillea seeds)

    • Despatch: By end of July 2016
    •  
    • £0.99

Foxglove 'Apricot'

Digitalis purpurea

 Customer Rating
An outstanding introduction producing large spikes of a lovely shade of Apricot. A most unusual and sought after colour. Excellent for the border in sun or part shade, and very useful as a cut flower. Flowers early summer. Height 1.3-1.5m (4-5ft).
More info
    • 1 packet (450 foxglove seeds)

    • Despatch: Within 1 days
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    • £0.99

Sedum 'Rock Garden Mixed'

Sedum rupestre, Sedum spathulifolium, Sedum album, Sedum aizoon, Sedum reflexum, Stone Orpine, Reflexed Stonecrop, Spoon-leaved Stonecrop, White Stonecrop

Harvest permitting includes: S. reflexion, S. spathulifolium, S. album hybrids, S. aizoon and many others in full foliage and flowering colour range.

More info
    • 1 packet (300 sedum seeds)

    • Despatch: Within 1 days
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    • £0.99

Chrysanthemum x koreanum 'Fanfare Improved' F1 Hybrid

Chrysanthemum x grandiflorum, Florist's Chrysanthemum

The cooler it is the earlier it blooms continuing till hard frost. Double pom-pom, 3in flowers on semi-dwarf plants. Magnificent cut flower.


Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting

More info
    • 1 packet (40 chrysanthemum seeds)

    • Despatch: Within 1 days
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    • £0.99

Hellebore (Purple-flowered Christmas Rose)

Helleborus purpurascens

Rarely offered for sale as seed! This exquisite Helleborus produces clumps of robust, leathery foliage along with many large blooms, flushed in shades of purple, pink and even slate grey!

More info
    • 1 packet (30 hellebore seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Arum Lily

Zantedeschia aethiopica, Calla Lily

A soothing sight by the waterside, in moist borders or large containers. These robust plants produce glossy foliage shooting like arrows from the base, then from late spring to mid-summer, the beautiful, pure white Arum Lily blooms become a sparkling attraction. Hardy with dry mulch winter protection. More info
    • 1 packet (20 arum seeds)

    • Despatch: By end of July 2016
    •  
    • £0.99

Delphinium 'Dusky Maiden'

Long, strong, impressive flower spikes in spectacular dusky pink shades, making this superb as a cut flower. Truly outstanding garden performance makes this a must for all perennial borders. Height: 120-150cm (4-5ft).

More info
    • 1 packet (8 delphinium seeds)

    • Despatch:
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    • £1.49 £0.99
    • Out of stock

Aquilegia x hybrida 'Royal Purple'

Columbine, Granny's Bonnet, Aquilegia clematiflora, Aquilegia vulgaris var. stellata 'Royal Purple'

A specially selected spurless form, producing clematis-like flowers of a deep, rich royal purple colour. Aquilegia 'Royal Purple' has outstanding garden performance . This hardy perennial columbine is ideal for cottage garden borders and shady woodlands. Height: 60cm (24"). Spread: 40cm (16"). More info
    • 1 packet (20 aquilegia seeds)

    • Despatch: Within 1 days
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    • £0.99

Aquilegia x hybrida 'Crown Jewels Mixed'

Columbine, Granny's Bonnet

The modern art of breeding, with some help from Mother Nature, has created this stunning new blend. A mixture of single, double, pompom, clematis flowered, long spurred and bicolour blooms aloft an equally diverse mixture of green, gold, bronze and silver edged foliage types. Plants may even throw up more new exciting types as they further hybridise!
More info
    • 1 packet (20 aquilegia seeds)

    • Despatch: Within 1 days
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    • £0.99

Alstroemeria 'Ligtu Hybrids'

Peruvian Lily

 Customer Rating
Invaluable long-lived border plants in numerous shades of pink, orange and scarlet with distinctive, contrasting stripe. One of the worlds' most popular cut flowers.
More info
    • 1 packet (35 alstroemeria seeds)

    • Despatch: Within 1 days
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    • £3.99