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. For direct sowing take a look at our stunning range of hardy annual seeds.



We have found 132 products.
 

Cosmos sulphureus 'Polidor'

 Customer Rating

A bright, striking mixture of orange, lemon and red shades. The semi-double flowers, of medium size, are borne on bushy plants of fresh, fern-like foliage. Earlier to bloom than many other Cosmos.

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    • 1 packet (200 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99

Nasturtium 'Banana Split'

Tropaeolum minus, Indian Cress

 Customer Rating

Showing superb garden performance in our trials, this eye-catching nasturtium produces masses of lovely golden-petalled flowers which sit on top of lush green foliage. The slightly ruffled blooms fade to lemon as the season progresses whilst the lax, bushy, slightly spreading habit makes Nasturtium Banana Split a must for containers as well as the front of borders where it will flower freely all summer.


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

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    • 1 packet (25 nasturtium seeds)

    • Despatch: Within 1 days
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    • £2.69

Cosmos bipinnatus 'Double All Sorts Mixed'

This wonderful mixture contains a full range of flower forms and colours and includes much-sought-after picotees and stripes. An easy-to-grow annual which will flower all summer and its height means that it will make a superb backdrop to your borders or a long-lasting and pretty addition to flower arrangements! Height: 100-120cm (40-48in).
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    • 1 packet (100 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.69

Cosmos bipinnatus 'Sonata Series Mixed'

An award winning variety in a superb mixture of colours. This beautiful dwarf Cosmos reaches a maximum height of 60cm (24") making it perfectly proportioned for sunny borders and containers. The 8cm (3") wide, daisy-like blooms of Cosmos 'Sonata Series Mixed' float above the finest lacy foliage. Strong stems and a long vase life make this compact annual ideal for cutting for a colourful bouquet. Cosmos 'Sonata Series Mixed' is particularly useful for exposed positions. Height: Up to 60cm (24"). Spread: 45cm (18").
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    • 1 packet (30 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.69

Cosmos bipinnatus 'Sonata Series White'

A Fleuroselect Award Winning variety with purest white blooms. This beautiful dwarf Cosmos reaches a maximum height of 60cm (24") making it perfectly proportioned for sunny borders and containers. The 8cm (3") wide, daisy-like blooms of Cosmos 'Sonata Series White' float above the finest lacy foliage. Strong stems and a long vase life make this compact annual ideal for cutting for an elegant bouquet. Cosmos 'Sonata Series White' is particularly useful for exposed positions. Height: Up to 60cm (24"). Spread: 45cm (18").
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    • 1 packet (100 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99

Nicotiana x sanderae 'Fragrant Cloud'

Tobacco Plant

A very attractive and free flowering type with large pure white sweetly scented flowers on sturdy plants.
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    • 1 packet (1000 nicotiana seeds)

    • Despatch: Within 1 days
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    • £2.19

Nicotiana x sanderae 'Sensation Mixed'

Tobacco Plant

 Customer Rating

A showy and compact variety with sweetly scented flowers which stay open all day in a brilliant range of colours. Recommended. Flowers summer to autumn. Height 60-90cm (24-36in).

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    • 1 packet (2000 nicotiana seeds)

    • Despatch: Within 1 days
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    • £0.69

Zinnia elegans 'Lilliput Mix'

A superb blend of this most unusual flower type, specially selected for its wide range of bright colours. Attractive fully double 2.5-3cm (1-1½in) pom-pom like flowers are stunning in borders or as a cut flower. Height: 45-50cm (18-20in). More info
    • 1 packet (200 zinnia seeds)

    • Despatch: Within 1 days
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    • £0.99

Antirrhinum nanum 'Frosted Flames'

Snapdragon

 Customer Rating
The rich carnival of colour produced by this stunning Antirrhinum is perfectly foiled by the unusual, frosted foliage, making the plants a real talking point. Exceptional performance for the summer border.
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    • 1 packet (60 antirrhinum seeds)

    • Despatch: Within 1 days
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    • £0.99

Dahlia variabilis 'Bishop's Children'

A fiery mix of such striking colour, yet with the innocent flower faces of Bishop's Children. Mid-height, and blends extremely well into borders. However, be warned that a colour eruption may occur! Spectacular in bedding and containers, and as a cut flower.Height: 60-75cm (24-30 inches). Planting distance 12-18 inches.
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    • 1 packet (50 dahlia seeds)

    • Despatch: Within 1 days
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    • £2.99

Nasturtium 'Mahogany Jewel'

Tropaeolum majus, Indian Cress

 Customer Rating
Tropaeolum majus Mahogany Jewel Common name: Nasturtium An easy to grow annual with compact, uniform plants which are early to flower. The large, semi-double blooms in gloaming, deepest red mahogany are produced in succession over the summer months. Excellent summer ground cover for beds, borders, and containers.

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

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    • 1 packet (25 nasturtium seeds)

    • Despatch: Within 1 days
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    • £1.99

Cosmos bipinnatus 'Sweet Sixteen'

 Customer Rating

Eye-catching soft blushed pink blooms, each have distinct darker pink picotee edges and an attractive double frill in the centre of each flower. Cosmos Sweet Sixteen is ideal for adding height and interest to borders as well as making an intriguing cut flower.

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    • 1 packet (70 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99