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 15 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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    • £2.29

Dahlia variabilis 'Giant Hybrids Mixed'

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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'

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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.
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    • 1 packet (2000 seeds)

    • Despatch: Within 3 days
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    • £2.69

Dahlia variabilis 'Pompone Mixed'

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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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    • £2.99

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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    • £3.99

Amaranthus caudatus 'Fat Spike'

Love-lies-bleeding, Tassel Flower

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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
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    • £2.99

Begonia boliviensis

With its bright orange, bell-shaped flowers which cover the plant from late spring throughout the summer, Begonia Boliviensis is a delightful, easy-to-grow begonia that is perfect in containers, hanging baskets and as a landscape plant. Of special historical interest to gardeners, begonia boliviensis was introduced to Europe in 1864 and is one of the species used to produce the first hybrid tuberous begonia in England. Height: 45-60cm (18-24in) with a similar spread and trailing length. More info
    • 1 packet (100 seeds)

    • Despatch: Within 3 days
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    • £3.19

Begonia 'Pink Showers'

Begonia x weltoniensis

Showers of petite, rose-pink single flowers with pretty yellow centres hang in clusters against an attractive backdrop of unusual maple-like foliage. Begonia 'Pink showers' is particularly free flowering, blooming constantly throughout summer and well into autumn. This stunning trailing begonia makes a magnificent display in containers or spilling from hanging baskets and window boxes. Height: 25cm (10"). Spread: 60cm (24"). More info
    • 1 packet (20 seeds)

    • Despatch: Within 3 days
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    • £3.19

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
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    • £2.69