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 10 products.

Meconopsis grandis Himalayan Blue Poppy Customer Rating Sturdy and long-lived with huge flowers 10-12cm (4-5in) across in a wonderful blue, shot with violet on erect stems. More info 1 packet (30 seeds) Despatch: Within 2 Days £2.99 Quantity
Delphinium grandiflorum 'Summer Nights' Delphinium chinense Attractive dwarf plants covered in a blanket of dainty midnight-blue flowers. Flowering in their first year from sowing makes them perfect for bedding borders or containers, providing a colourful display over a long summer period. More info 1 packet (20 seeds) Despatch: Within 2 Days £0.69 Quantity
Delphinium x cultorum 'Tall Black Knight' Tall, robust, candle-like flower spikes packing with attractive, deep blue blooms, each complemented by a striking large black bee in the centre. A stunning addition to any border. Height: 120-150cm (4-5ft). More info 1 packet (100 seeds) Despatch: Within 2 Days £2.79 Quantity
Meconopsis betonicifolia Himalayan Blue Poppy, Tibetan Blue Poppy Customer Rating Is there a more beautiful bloom in the entire flower kingdom then the famous Blue Poppy? It is only to be expected that an elusive, magical flower like this is a little harder to grow. The secret with this plant is to grow cool and well shaded. Height: 60-90cm (24-36in). More info 1 packet (50 seeds) Despatch: Within 2 Days £2.99 Quantity
Aconitum carmichaelii Monkshood, Wolf's Bane, Aconitum fischeri An imposing long flowering, long lived perennial with pyramids of beautiful 2 inch flowers. Aconitum is an excellent border plant easily grown from seed. Rich blue flower spikes add a unique colour to the garden, held aloft delphinium-like foliage. Aconitum spikes also last as a cut flower. More info 1 packet (50 seeds) Despatch: Within 2 Days £2.99 Quantity
Polemonium boreale 'Heavenly Habit' Jacob's Ladder Attractive clusters of violet-blue flowers, each with a distinct golden yellow eye, look divine against the bushy, deep green foliage. Their dwarf habit makes them idea! in the front of borders, or even containers. If deadheads are removed regularly, plants will continue to flower throughout the summer. More info 1 packet (20 seeds) Despatch: Within 2 Days £0.69 Quantity
Agastache foeniculum Anise Hyssop, Agastache anisata, Agastache anethiodora Silvery-green foliage which is scented unmistakenly of Aniseed. Flower spikes of blue appear during summer. Bees, butterflies and goldfinches love it! Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here. More info 1 packet (60 seeds) Despatch: Within 2 Days £2.29 Quantity
Veronica gentianoides Gentian Speedwell This delectable and extremely choice garden species normally has pure gentian blue flowers. Occasionally the rarer form with palest lavender blue petals beautifully veined in royal blue, can be found. Now, T&M have harnessed this rarer form for you to enjoy. Its many flowers are perfectly spaced on erect spikes and a group of these really deserve a special place in the border. Flowers summer. Height 45-60cm (18-24in). More info 1 packet (50 seeds) Despatch: Within 2 Days £1.49 Quantity
Delphinium x cultorum 'Centurion Lilac Blue Bicolour' F1 Hybrid UK Exclusive. One of the very best delphiniums from seed, equal in quality to expensive cutting-raised plants. The tall, sturdy stems of Delphinium Centurion Lilac Blue Bicolour are covered in truly stunning bi-coloured blooms with triple-layered petals in lilac and blue shades with a white central 'bee'. (Flowers from July to September in its first year if sown before the end of February). More info 1 packet (12 seeds) Despatch: Within 2 Days £2.99 Quantity
Meconopsis grandis - Kew Collection Seeds Himalayan Blue Poppy Sturdy and long lived, with huge flowers 4-5in across of a wonderful blue, shot with violet, on erect stems. More info 1 packet (20 seeds) Despatch: Within 2 Days £2.99 Quantity