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.
 

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: By end of September 2014
    •  
    • £3.29

Lysimachia atropurpurea

Loosestrife

A superb border plant with silver- green lanceolate foliage and many spikes of claret-red, almost black florets - a highly unusual colour in perennials. May also be used in containers or as a cut flower.
More info
    • 1 packet (40 seeds)

    • Despatch: By end of September 2014
    •  
    • £3.69

Dianthus plumarius 'Sonata'

Pink

Flowering all summer with very double, fragrant classic cottage garden pinks. Flowers 16-18 weeks from sowing.

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

More info
    • 1 packet (30 seeds)

    • Despatch: By end of September 2014
    •  
    • £1.49

Nepeta transcaucasica 'Blue Infinity'

Catmint

Tall wands of violet-blue flowers in seemingly infinate quantity over a long period. With its characteristic aromatic fragrance it is extremely effective in the border, long-lived, easily grown and very reliable.

* Seed came to T&M under this name which is yet to be verified.

More info
    • 1 packet (45 seeds)

    • Despatch: By end of September 2014
    •  
    • £0.69

Stock 'Dwarf Mixed' (Brompton Stocks)

Matthiola incana, Gillyflower

 Customer Rating
Upright bushy, early flowering biennials producing gloriously scented flowers in a good colour range which are splendid for cutting. Flowers early summer. Height 18in.
More info
    • 1 packet (100 seeds)

    • Despatch: By end of September 2014
    •  
    • £1.99

Geranium 'Moulin Rouge' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

Found to be the most outstanding bedding Geranium in T&M's trials. So vigorous, the plants are smothered in large scarlet blooms throughout the season. Sure to give a glorious display. Ideal for bedding or containers.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (6 seeds)

    • Despatch: By end of September 2014
    •  
    • £3.69

Rose multiflora nana perpetua 'Garden Party'

Rosa

 Customer Rating
This lovely miniature rose is bred for improved germination making it easy to grow from seed. Flowering in its first year from an early sowing, Rose multiflora nana perpetua 'Garden Party' produces wide, open blooms in delicate shades of rose and pale pink. Perfect for edging beds and borders or growing in containers as an attractive centre piece for the patio table. Height: 25cm (10"). Spread: 35cm (14").

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


Companion planting: Try growing roses with garlic, chives, thyme or mint to help deter aphids and blackfly.


Useful links:

Companion Planting

More info
    • 1 packet (20 seeds)

    • Despatch: By end of September 2014
    •  
    • £2.99

Geranium 'Horizon Coral Spice' F1 Hybrid

Pelargonium x hortorum, Zonal Geranium, Zonal Pelargonium

A gorgeous new warm colour in geraniums. Large, well rounded, bright coral flower heads above lightly zoned foliage. With vigorous performance, it will flower nonstop until first frosts.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (6 seeds)

    • Despatch: By end of September 2014
    •  
    • £0.99

Geranium bohemicum 'Orchid Blue'

Hardy Geranium, Cranesbill

Geranium 'Orchid Blue' is a selection by Thompson & Morgan from the species Geranium bohemicum. A short-lived border and ground cover plant which self-seeds to keep continuity. Masses of 2cm (¾in.) flowers of orchid-blue, veined in purple-violet, borne on bushy plants. Makes a delightful show, particularly when situated in a sunny position in the border. Flowers summer. Height 30-45cm (12-18in).

More info
    • 1 packet (8 seeds)

    • Despatch: By end of September 2014
    •  
    • £3.49

Helianthemum Collection

Rock Rose, Sun Rose

Showy dwarf evergreen shrubs which spread quickly over rocks and slopes and make ideal ground cover. The attractive foliage is smothered from late spring with masses of 2.5cm (1 inch) flowers resembling wild roses in pink, lemon, copper, red, purple and white. They love the sun and stand hot, dry conditions very well. Height: 9-12 inches.
More info
    • 1 packet (250 seeds)

    • Despatch: By end of September 2014
    •  
    • £2.19

Lavender 'Mini Blue'

Lavandula angustifolia, English Lavender

  • New in 2014

A delightful dwarf lavender flowering in its first year from an early sowing! Compact, rounded plants quickly become smothered with masses of highly fragrant, deep purple lavender flowers from mid-summer onwards, which are highly attractive to bees. With impressive garden performance, Lavender 'Mini Blue' is ideal for growing in containers or used as a neat evergreen edging to beds and borders. Height: 30cm (12"). Spread: 35cm (14").


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


Useful links:

Gardening news: Top 10 evergreen shrubs

More info
    • 1 packet (20 seeds)

    • Despatch: By end of September 2014
    •  
    • £2.99