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 19 products.
 

Cyclamen 'All-the-year-round Flowering Mixed'

A balanced mixture of hardy garden varieties thriving in shade or woodland, chosen from species flowering at most periods of the year. Height: 8-15cm (3-6in). More info
    • 1 packet (16 seeds)

    • Despatch: Within 3 days
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    • £1.49

Erigeron karvinskianus 'Profusion'

Erigeron karvinskianus, Fleabane, Mexican Fleabane

Lovely subject for hanging baskets, window boxes, patio tubs. Flowers within 3 months.
More info
    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £3.29

Pansy 'Singing the Blues'

Viola x wittrockiana

This mixture of four enchanting colours, in shades and contrasts of blue, are not just pretty but the most sensational breakthrough in Violas for a decade. They were specifically bred for containers, baskets and ground cover, possessing a unique trailing habit. Above all they are wonderfully fragrant with a gorgeous, pervading sweet scent. Flowers appear in abundance and because they are tolerant to cold and heat, they can be grown all year round. Height: 2-3in Flowers spring/summer.


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

More info
    • 1 packet (25 seeds)

    • Despatch: Within 3 days
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    • £0.69

Viola cornuta 'Endurio Mixed' F1 Hybrid

Horned Violet, Horned Pansy

The best winter flowering Viola! Gardeners have been growing larger winter flowering pansies for years, but after T&M's winter flowering trials we consider more gardeners should grow these smaller flowered violas. This delightful mixture of seven distinct colours will enhance semi-trailing plants tumbling over the sides of baskets or containers or can be grown as an effective ground cover in borders. Unlike their larger cousins Endurio will keep on flowering throughout the winter whatever the weather! Spring sowings will give flowers during early summer, whilst summer and autumn sowings will bloom the following winter or spring. Height: 30-35cm (12-14in).

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

More info
    • 1 packet (20 seeds)

    • Despatch:
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    • £1.49
    • Out of stock

Aubrieta 'T&M Mixed Hybrids'

Aubretia

A very special selection of large-flowered Aubretia with a rich colour range. They cascade and spread with vigorous determination. Suitable for rockeries, borders, edging paths, planters etc. Flowers early spring. Spread 18-24in.
More info
    • 1 packet (400 seeds)

    • Despatch: Within 3 days
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    • £1.99

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 seeds)

    • Despatch: Within 3 days
    •  
    • £0.69

Catharanthus roseus 'Mediterranean Lilac'

Vinca rosea, Rosy Periwinkle, Madagascar Periwinkle, Cayenne Jasmine

The first of a new breed in trailing Vincas! Specifically for baskets and containers they are early flowering with large, rounded, overlapping petals forming striking, vivid blooms.

More info
    • 1 packet (25 seeds)

    • Despatch: Within 3 days
    •  
    • £0.69

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.
More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
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    • £4.49

Heteropappus meyendorfii 'Blue Knoll'

Seed of this amazing new garden plant can be sown early in the year* and by the same autumn will be completely smothered in hundreds and thousands of shiny, light reflecting flowers, forming perfect mounds (or knolls) 30cm (12in) high and 45cm (18in) across. During a season when little else is in flower, they are a perfect fit for a change in containers or will brighten up the border, looking like blue charm chrysanthemums. No matter what the weather conditions - torrential rain, snow or frost they continue to look far and away the best, brightest plant in the garden, even right through November. *Sow during January/February to flower in October/November. Sow September/October to flower following September/October. More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £1.49

Aubrieta 'Purple Cascade' F1 Hybrid

Aubretia

An excellent strain almost smothered in flowers in rich purple shades. Excellent for a bold spring display. Suitable for rockeries, walls, borders, edging paths, planters, window boxes etc. Flowers early spring. Spread 30-38cm (12-15in). More info
    • 1 packet (150 seeds)

    • Despatch: Within 3 days
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    • £2.69

Saponaria ocymoides

Tumbling Ted, Rock Soapwort

Spreading rockery, or paving plant, myriads of ½in pink flowers.

More info
    • 1 packet (25 seeds)

    • Despatch: Within 3 days
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    • £0.69

Cyclamen coum 'Hybrids'

Bright carmine, green or silver marbled leaves. Charming distinct species. Recommended. More info
    • 1 packet (15 seeds)

    • Despatch:
    •  
    • £1.49
    • Out of stock