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 62 products.
 

Commelina dianthifolia

Bird-bill Day Flower, Widow's Tears

 Customer Rating

A very rare plant indeed. This is one of the few plants with such intense blue flowers and that will also perform well in the garden. Flowering in its first year with 2.5cm (1in) gentian blue flowers, it then produces tubers and springs back to life the following year with an unceasing display of blooms. Wonderful in containers, rock gardens and the border (regardless of soil conditions). Hardy down to -8/-10C. Flowers summer. Height 15-30cm (6-12in.)

More info
    • 1 packet (25 commelina seeds)

    • Despatch: Within 1 days
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    • £0.99

Hellebore (Christmas Rose)

Helleborus niger

Surprise your friends and neighbours with an arrangement of Christmas roses for the festive season! Beautiful blooms at a time when little else is available. From seed you can have a group quite close together in a way which would cost you a great deal if you bought the plants. They flower in about three years from seed and invariably produce stronger, healthier plants.

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    • 1 packet (40 hellebore seeds)

    • Despatch: Within 1 days
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    • £0.99

Viola hybrida 'Rose Shades'

Pansy

A delightful bushy, compact and free flowering variety in delicious rose shades. Each bloom has an attractive yellow eye and darker whiskers, plus the added bonus of a sweet fragrance. Ideal for planting in spring or summer borders and containers. Height: 15-25cm (6-10in).

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

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    • 1 packet (30 Viola seeds)

    • Despatch: Within 1 days
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    • £3.69

Cyclamen hederifolium 'Mixed'

Cyclamen neapolitanum, Sowbread

Carmine, light rose and white flowers with beautiful silver-marbled deep green foliage. Flowers often appear before the foliage. Evergreen very hardy, and will self seed.
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    • 1 packet (30 cyclamen seeds)

    • Despatch: Within 1 days
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    • £0.99

Foxglove 'Silver Cub'

Digitalis purpurea subsp. heywoodii

This unusual foxglove produces silvery foliage coated in a layer of thick hair which feels soft to the touch like puppies' ears! Clear white blooms with delicate spotted centres decorate sturdy, mid-height flower stems on multi-branched plants from May to July. Flowering in its first year from a January sowing, grow Foxglove 'Silver Cub' in sunny or partially shaded borders where it will attract bees and other pollinating insects. Height: 60cm (24"). Spread: 45cm (18"). More info
    • 1 packet (100 foxglove seeds)

    • Despatch: Within 1 days
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    • £1.99

Meconopsis cambrica 'Double Mixed'

Welsh Poppy

Welsh Poppy. An exclusive and rare mix of silky pom-pom blooms in orange, red and yellow. The Welsh Poppy is a breezy perennial for dappled shade, blooming from mid-spring right through to autumn. Occasionally an odd single flower may also appear. More info
    • 1 packet (50 meconopsis seeds)

    • Despatch: Within 1 days
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    • £0.99

Tree Peony 'Rockii Mixed'

Paeonia

  • Rarely offered seed
A much sought-after variety. The tissue paper white blooms are splashed with deep burgundy at the base of each petal. There are few plants that can compete with the beauty of a tree peony in full bloom. A mature plant can boast in excess of a hundred exotic blooms, each measuring up to 25cm (10") or more in diameter! These exceptional shrubs are hardy and disease resistant, and will continue to bloom for a lifetime. The exotic flowers of Tree Peony ÔRockii Mixed' are simply breathtaking in borders and make exquisite cut flowers. When grown from seed, tree peonies will reward patient gardeners by blooming 5-7 years from sowing. Height and spread: 150cm (60").

Useful links:

How to plant peonies

More info
    • 1 packet (5 tree peony seeds)

    • Despatch: Within 1 days
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    • £2.99

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 meconopsis seeds)

    • Despatch: Within 1 days
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    • £2.99

Foxglove 'Candy Mountain'

Digitalis purpurea

Foxglove Candy Mountain is totally unique as it is the first upward facing foxglove from seed. This unusual characteristic enables you, and the bees, to peep inside the stunning rose pink blooms and view their delightful freckled throats, which appear all the way around the stems. These flower stems are so strong, sturdy and erect that in breeding trials Candy Mountain was given the nickname 'Viagra'! Ideal for planting in drifts, creating a colourful display towards the middle or back of your perennial or cottage garden borders. Height: 90-140cm (36-56 inches). More info
    • 1 packet (200 foxglove seeds)

    • Despatch: Within 1 days
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    • £2.99

Foxglove 'Milk Chocolate'

Digitalis parviflora, Digitalis kishinskyi

A delightful species originating from Spain and Portugal. Produces elegant flower spikes covered in small chocolate trumpets circling each stem and attracting beneficial insects. More info
    • 1 packet (100 foxglove seeds)

    • Despatch: Within 1 days
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    • £0.99

Cyclamen persicum grandiflorum 'Scentsation Mixed'

Florist's Cyclamen, Persian Cyclamen

Lingering Freesia-like fragrance of one plant can fill a room. More info
    • 1 packet (10 cyclamen seeds)

    • Despatch: Within 1 days
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    • £0.99

Dianthus barbatus 'Kaleidoscope Mixed'

Sweet William

  • RHS Perfect for Pollinators
A cottage garden favourite with an unusual colour twist! This beautiful Sweet William produces large heads of pretty pink flowers that gradually mature to white, creating a delightful bicolour effect. Sweet William 'Kaleidoscope' is highly scented with multi branching stems that make it superb for cutting. Often grown as a biennial, this short lived perennial is ideal for borders, beds and containers, and will even flower in the same year if sown early. Height: 60cm (24"). Spread: 30cm (12").

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (40 dianthus seeds)

    • Despatch: Within 1 days
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    • £1.99