Thompson & Morgan

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Half-hardy Annual Seeds


Sow half-hardy annuals in early spring, making sure that you protect them from frost. Plant them out after all risk of frost has passed and you'll be rewarded with delightful flowers all throughout the summer. Hint: use the selections in the left menu to narrow down your search for the perfect half-hardy annual seeds for your garden.



We have found 14 products.
 

Cosmos bipinnatus 'Sensation Mixed'

 Customer Rating

A tall, upright variety for the back of sunny borders. Cosmos 'Sensation Mixed' produces masses of daisy-like flowers above delicate ferny foliage throughout summer and autumn. The strong stems and long lasting flowers of this easy to grow annual make it perfect for cutting. This fabulous mix contains a superb range of colours including white, pink and carmine. Height: 120cm (47”). Spread: 60cm (24”).

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    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £2.49

Dahlia variabilis 'Giant Hybrids Mixed'

 Customer Rating

Huge flowered, double, semi-double and a few singles of the best cut flower varieties. Height: 90-150cm (3-5ft).

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    • 1 packet (40 seeds)

    • Despatch: Within 3 days
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    • £2.99

Cosmos bipinnatus 'Purity'

 Customer Rating
Ferny foliage and graceful pure white flowers up to 4in or more in diameter make this an effective and popular, easy annual. Flowers summer to autumn. Height 3 to 4 feet.
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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
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    • £2.69

Nicotiana sylvestris

Tobacco Plant, Woodland Tobacco

 Customer Rating
This imposing half hardy annual has stout spikes bearing a cascading head of fragrant 3½in long white blooms. It grows to a height of 90-120cm (36-48in) making it an excellent subject for the border. Occasionally a short lived perennial in a warm sheltered site.
More info
    • 1 packet (2000 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Dahlia variabilis 'Pompone Mixed'

 Customer Rating

Almost 100% pompon. Height: 90-120cm (3-4ft).

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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
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    • £2.99

Dahlia variabilis 'Cactus Hybrids Mixed'

 Customer Rating

Curvaceous, spiky blooms, huge cut flower source, many fully double and mostly true to type. Superb too in the flower border for late summer/autumn blooms. Flowers late summer/autumn. Height 3-4ft. Planting distance 27 inches.

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    • 1 packet (56 seeds)

    • Despatch: Within 3 days
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    • £0.99

Dahlia variabilis 'Showpiece Mixed Hybrids'

Several plants from this seed have won prizes on the show bench in USA, UK, Australia and New Zealand. This breeding produces sensational miniature decorative dahlias, very double and 3-4in across of a quality normally associated only with the most carefully selected of vegetatively propagated varieties. They have straight, strong stems and are remarkably floriferous in rich, bright colours including gold, crimson, purple, apricot and many shades of red and pink. More info
    • 1 packet (35 seeds)

    • Despatch: Within 3 days
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    • £0.99

Amaranthus caudatus 'Fat Spike'

Love-lies-bleeding, Tassel Flower

 Customer Rating
Highly attractive erect fat spikes in deep purplish red, from 3 inch thick tapering to 1 inch, as if standing guard. Ideal as a border filler, and for flower arranging. Height: 90-100cm (3-4ft)
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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Amaranthus caudatus 'Pony Tails Mixed'

Love-lies-bleeding, Tassel Flower

Delightful long, decorative tassels in red and green shades, gently swish side to side in a summer breeze. Ideal for adding height and interest to summer bedding displays. Height: 90-120cm (36-48in) More info
    • 1 packet (1000 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Nicotiana Duo

Tobacco Plant

Collection comprises one packet each of:
Sylvestris - this imposing half hardy annual has stout spikes bearing a cascading head of fragrant 3½in long white blooms. It grows to a height of 90-120cm (36-48in) making it an excellent subject for the border. Occasionally a short lived perennial in a warm sheltered site.
Suavolens - delightful, slender, white, nodding tubular blooms with a hint of blush, grace long, slender stalks shooting out from a base of mid-green leaves. Sweetly fragrant in the evening and early morning, adding a little height and a lot of style to your borders. Height of 60-80cm (24-32in).
More info
    • 2 packets - 1 of each variety (2100 seeds in total)

    • Despatch: Within 3 days
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    • £3.49

Gomphocarpus physocarpus

Swan Plant, Hairy Balls, Asclepias physocarpa

A slender, deciduous shrub, often treated as an annual. Quick and easy to grow, producing stems of insignificant flowers that magically transform into unusual translucent , soft, spiny balloons. Adds fun to borders and cut flower arrangements. More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
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    • £1.79