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 5 products.
 
Delphinium Grandiflorum Summer Nights

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
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

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
Chrysanthemum Indicum Charm Early Fashion Mixed

Chrysanthemum indicum 'Charm Early Fashion Mixed'

A much improved form of the cushion-type chrysanthemum with a wide and wonderful colour range of extra dwarf and compact plants with 5cm (2in) semi-double blooms produced in spectacular profusion with well grown plants producing upwards of 1000 blooms! Flowering from late August onwards from late winter sowing. Flowers autumn. Height/Spread: 30x50cm (12x20in).


Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting 

 More info
    • 1 packet (30 seeds)

    • Despatch:
    •  
    • £3.99
    • Out of stock
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