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 342 products.
 

Sunflower maximiliani

Helianthus maximiliani, Maximilian Sunflower

Often known as the Maximilian Sunflower, this attractive species produces masses of golden yellow, 7cm (3") wide blooms all the way up the tall stems, which have a sweet chocolate fragrance. Perennial sunflower Helianthus maximiliani makes a stunning addition to the back of borders and a good late summer food source for both birds and butterflies. Height: 250cm (98"). Spread: 100cm (39").


Companion planting: Try growing sunflowers with chives to deter aphids.


Useful links:

Companion Planting

More info
    • 1 packet (100 sunflower seeds)

    • Despatch: Within 1 days
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    • £2.99

Achillea ptarmica 'Double Diamond'

Yarrow, Sneezewort

 Customer Rating
Compact bushy plants are smothered with mainly double, dazzling white pom-pom flowers. An improved selection of this fabulous first-year-flowering hardy perennial, growing to 30cm (12") in the first year and 80cm (32") in the second. Achillea 'Double Diamond' is ideal for the front and middle of borders, as ground cover or as low hedging where it will attract bees and other beneficial insects. This elegant Yarrow also makes a lovely cut or dried flower. Height: 80cm (31"). Spread: 60cm (24").
More info
    • 1 packet (80 achillea seeds)

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

Echinacea purpurea 'Lustre Hybrids'

Coneflower

A robust, long-lived border plant with superb flowering performance and excellent weather resistance. This very attractive mixture offers shades of pink and red as well as glistening white. Excellent for borders or makes a high quality cut flower. Prefers a light, well-drained soil in full sun. Height 45-60cm (18-24in).
More info
    • 1 packet (25 echinacea seeds)

    • Despatch:
    •  
    • £0.99
    • Out of stock

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

Flame Flower. Gorgeous scarlet flowered climber. Climbs to 180-300cm (6-10ft).
More info
    • 1 packet (10 tropaeolum speciosum seeds)

    • Despatch: Within 1 days
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    • £4.69

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
    •  
    • £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
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    • £0.99

Dianthus caryophyllus 'Trailing Carnations Mixed'

Wild Carnation

Travelling in the Alpine regions of Europe one is struck by the magnificent and visual impact of their window boxes, hanging baskets, pots, tubs etc. And then we realised that they make liberal use of pendulous carnations adding an extra slant in perspective and design. The colour range is mainly pink and red shades.

Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 1 packet (100 dianthus seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Lupin 'Band of Nobles Mixed'

Lupinus

With an exciting and colourful range of robust, densely packed flower spikes produced in early summer, this traditional lupin will enhance any garden scene and looks particularly at home in the cottage garden. Height: 90-120cm (3-4ft). More info
    • 1 packet (35 lupin seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Malva moschata 'Snow White'

Musk Mallow

Dwarf, compact plants, covered by masses of glistening snow white flowers. Excellent garden performance, flowering over a long period all summer. Ideal for borders or containers. Flowers in first year. Height: 30-38cm (12-15in).
More info
    • 1 packet (40 malva seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Pansy 'Tiger Eyes' F1 Hybrid

Viola x wittrockiana

This impressive Viola is no freak of nature, rather the result of an impressive breeding programme. Attractive old-gold petals are inlaid with intricate black veins, contrasting with the fresh, dark green foliage. Create an eyecatching display in borders or containers. Suitable for summer or winter flowering.


Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

More info
    • 1 packet (20 pansy seeds)

    • Despatch: Within 1 days
    •  
    • £0.69

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:
    •  
    • £1.49 £0.99
    • Out of stock