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 12 products.
 
Nepeta Nervosa Blue Moon

Nepeta nervosa 'Blue Moon'

Catmint
A neat, dwarf, bushy, habit, with large dense blue flower spikes, over a very long period. Quick to flower in 12-16 weeks from an April sowing. Ideal for borders and containers. Height: 30-40cm (12-16in). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Primula X Candelabra Hybrids

Primula Candelabra Hybrids

An exciting wide ranging mix of these fascinating Primulas which have spikes of very delicate florets appearing in whorls up the stem in a wide range of colours. Thrives in sun or shade. Height: 30-60cm (12-24in). More info
    • 1 packet (80 seeds)

    • Despatch: Within 2 Days
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    • £3.69
Malva Moschata 'Snow White'

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 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Salvia Patens

Salvia patens

Gentian Sage
A classic border plant, ideal for adding a cool blue drift to your planting schemes. The attractive, large blue hooded florets are borne on erect stems above toothed foliage. First year flowering, blooms throughout the summer into autumn. Height: 45-60cm (18-24in). More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.99
Viola X Williamsiana Sweeties

Viola x williamsiana 'Sweeties'

Pansy, Viola williamsii

  Customer Rating
The best ever dwarf Viola for containers! A unique mixture of small, attractive bicoloured flowers resembling tiny sweets. Compact plants are smothered in masses of flowers over a very long period, making it ideal for summer or winter flowering bedding displays.

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 2 Days
    •  
    • £2.49
Salvia Patens Cambridge Blue

Salvia patens 'Cambridge Blue'

Gentian Sage
An outstanding plant, which is a variant to the Mexican species. Exquisite large pale blue, hooded flowers on erect stems. Superb in borders, greenhouse or conservatory, and in milder areas tubers can be left outside. Otherwise simply lift plants in the autumn and store similarly to Dahlia tubers until spring, when you can plant them outside again. Height: 60-75cm (24-30 inches). More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.99
Rudbeckia Occidentalis Green Wizard

Rudbeckia occidentalis 'Green Wizard'

Western Coneflower

 A very curious and extraordinary plant for the back of borders. Bright green sepals, where most plants have petals and a central, almost black cone. An unusual fresh cut flower, long lasting in water, or use in dried arrangements. Easy to grow, quickly forming a good sized plant with plenty of lush green foliage and always a talking point. Flowers summer. Height: 120-152cm (4-5ft). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.29

Nepeta cataria

Catmint, Catnip

 No cat should be deprived of this! Their reaction to the aromatic silver grey foliage is fascinating. Flower spikes of violet spotted white.

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

 More info
    • 1 packet (225 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.89
Viola X Williamsiana Brush Strokes

Viola x williamsiana 'Brush Strokes'

Pansy

 These very unusual and distinctive small viola faces produce a palette of colours as if individually brushed by an artist. Bushy, dwarf plants give outstanding garden performance in summer or autumn displays.

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

 More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.29
Wildflower Collection

Wildflower Collection

Primrose, Field Poppy, Cowslip, Sweet Rocket

 Creating a colourful wildflower area in your garden is easy! Your garden will soon become a natural haven for wildlife, filled with a wide range of beneficial insects, like aphid-eating hoverflies and ladybirds, as well as various species of butterflies.
Collection comprises 1 packet each of:
Common Primrose
Wild Cowslip
Wild Flanders Poppy
Sweet Rocket Alba
 More info
    • 4 packets - 1 of each variety (2700 seeds in total)

    • Despatch: Within 2 Days
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    • £7.99

Salvia Duo

Salvia patens, Salvia patens 'Cambridge Blue', Gentian Sage
Collection includes the following varieties; Salvia patens - a classic border plant, ideal for adding a cool blue drift to your planting schemes. The attractive, large blue hooded florets are borne on erect stems above toothed foliage.
Salvia patens 'Cambridge Blue' - exquisite large pale blue, hooded flowers on erect stems. Superb in borders, greenhouse or conservatory, and in milder areas tubers can be left outside. More info
    • 2 packets - 1 of each variety (30 seeds in total)

    • Despatch: Within 2 Days
    • SAVE £1.49  
    • £7.98 £6.49
Nepeta cataria ssp. citrina

Nepeta cataria ssp. citrina

Lemon Catmint, Nepeta cataria 'Citriodora'

 Quite unlike ordinary catmint, handle or squeeze the leaves and they give off a rich lemony fragrancy which pervades the garden with rich flowery perfume on still, warm summer evenings. It's easy to grow and can be treated as either annual or perennial making a good border or summer hedge plant. Fashion conscious cats are taking it up in droves as the 'in' catmint to brush-up against. 'William' who's enthusiasm for catmint has not diminished since his last starring role amongst T&M's ordinary catmint 11 years ago, was persauded (on a full stomach) to pose against these lemons so that you would know about his new found catmint fragrance delight 'Lemon Scented Catmint'.

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

 More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49