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 75 products.

Perennial Flower Border Seed Collection (Tall)

A well planned perennial border is a magnificent sight in summer! Flowering year after year, getting bigger each season, hardy perennials represent superb value for money - even more so when you buy perennials from seed. To help you make the most of your borders, we have grouped together varieties by height to help you achieve a balanced display. Height: Up to 120cm (47"). Spread: Up to 60cm (24").

Collection comprises:

  • Tall Perennials
  • Lupin 'Tutti Frutti' (40 seeds) - A mouthwatering range of attractive bicoloured flower spikes.
  • Delphinium 'Tall Black Knight' (100 seeds) - Tall, robust, candle-like flower spikes packing with attractive, deep blue blooms.
  • Foxglove 'Excelsior Hybrid Mixed' (2500 seeds) - Superb for shady shrub and tree areas, backs of borders and excellent for cut flowers.
  • Melianthus 'Major' (10 seeds) - Blue-green spiky foliage, which has a sweet peanut butter fragrance when crushed.
  • Verbena bonariensis (200 seeds) - This elegant perennial is at its most effective when planted in large swathes.
More info
    • 5 varieties - 1 packet of each (2850 perennial seeds in total)

    • Despatch: By end of July 2015
    • Save £5.96  
    • £15.95 £9.99

Delphinium 'New Zealand Hybrids'

T&M are privileged to offer the results of a rigorous and exciting 11 year breeding programme by a world specialist. The 'New Zealand Hybrids' are a great improvement on the now discontinued Nobleman series. They have been specifically bred for exceptional perennial performance, and are outstanding in borders. The strong flower spikes with maximum, evenly spaced florets make them a great cut flower. Disease resistance is also advanced, offering protection against both powdery mildew and black spot. Add to this the impressive flower form and colour and you have the highest quality Delphiniums ever to be available from seed. T&M's exclusive mixture, known as 'New Zealand F1 Hybrids' offers a sumptuous range of bright blues, soft pinks and the purest whites. Beauty has never before been so freely available from seed .
More info
    • 1 packet (12delphinium seeds)

    • Despatch: Within 1 days
    • £4.99

Flower Border Seed Mix

Fill your borders with colour, grace and elegance. Create an eyecatching display in a sunny border bring colour to your patios or brighten up a dull corner. To help you make the most of your borders or containers, we have grouped together varieties that can be sown in July and August by height to help you achieve a balanced display. In this collection you will receive the following varieties - Astrantia 'Ruby Cloud' (22 seeds), Calendula 'Neon' (100 seeds), Rudbeckia 'Goldsturm' (100 seeds), Lysimachia atropurpurea (40 seeds), Orlaya grandiflora (25 seeds), Echinacea 'Magic Box' (30 seeds), Californian Poppy 'Red Chief' (400 seeds), Pansy (winter) F1 Hybrid'Water Colours Mixed' (30 seeds), Veronica 'Mixed Colours' (50 seeds), Bellis 'Tasso Mixed' (80 seeds), Calendula 'Citrus Cocktail' (100 seeds), Viola 'Rose Shades' (30 seeds), Cornflower 'Classic Fantastic' (200 seeds), Scabiosa drakensbergenisis (20 seeds), Echinacea 'Double Decker' (20 seeds), Eryngium 'Miss Wilmott's Ghost' (30 seeds), Larkspur 'Fancy Purple Picotee' (150 seeds), Foxglove 'Apricot' (450 seeds). More info
    • 18 varieties - 1 packet of each (1877 seeds in total)

    • Despatch: By end of July 2015
    • Save £27.53  
    • £47.52 £19.99