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 321 products.
 

Cosmos bipinnatus 'Antiquity'

A completely unique colour in Cosmos. Flowers are rich burgundy on opening and change to an antique bronze-salmon when ageing creating an attractive, two-toned effect. Very early flowering and floriferous all summer. Excellent for borders or containers.
More info
    • 1 packet (30 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99

Rhodochiton atrosanguineum

Purple Bell Vine

Extremely beautiful rapid growing climber that starts flowering in June and continues until killed by frost. Delightful parasol-shaped fuchsia pink calyx with black/purple to crimson 2½in flowers within. Sunny pergolas, porches, walls. Flowers mid summer to autumn. More info
    • 1 packet (10 rhodochiton atrosanguineum seeds)

    • Despatch: Within 1 days
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    • £3.99 £0.99

Petunia grandiflora 'Mirage Blue' F1 Hybrid

Mirage Blue combines the best of both worlds, it has the superb garden performance of the smaller flowered multifloras plus large and showy, up to 7.5cm (3in), richly veined blooms. Recovers quickly from rain, heat or drought and with its compact branching habit is ideal for bedding, window boxes, hanging baskets, tubs etc. Flowers summer. Height: 23cm (9in).

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    • 1 packet (75 petunia seeds)

    • Despatch: Within 1 days
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    • £2.99 £0.99

Zinnia elegans 'Magellan Mixed' F1 Hybrid

Uniform, bushy, free-flowering plants produce large, fully double blooms of exceptional quality and weather resistance. Ideal planted in borders and containers for a knock-out display all summer. Height: 30-35cm (12-14in).
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    • 1 packet (10 zinnia seeds)

    • Despatch: Within 1 days
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    • £0.99

Petunia grandiflora 'Sophistica Lime Bicolour' F1 Hybrid

An abundance of intriguingly coloured blooms, each one individually marked with dramatic splashes and stripes of pale lime green and rose pink. This is a colour combination never before seen in petunias, so Petunia grandiflora Sophistica Lime Bicolour is sure to attract attention and admiration in borders or containers where it will flower all summer. More info
    • 1 packet (12 petunia seeds)

    • Despatch: Within 1 days
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    • £0.99

Marigold 'Durango Bee' F1 Hybrid

Tagetes patula, French Marigold

A luxuriant variety with intense, rich, orange and yellow anemone-like flower heads, borne on branching, uniform plants. Exceptionally early flowering with outstanding garden performance. Height: 20-25cm (8-10in).

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

More info
    • 1 packet (40 marigold seeds)

    • Despatch: Within 1 days
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    • £2.69

Marigold 'Konstance'

Tagetes patula x erecta, Afro-French Marigold

Large, double mahogany blooms smother this fabulous Afro-French Marigold from midsummer right through to the autumn. Marigold 'Konstance' proved to be quite outstanding in T&M's trials, combining the superb garden performance, resilience, and weather resistance of its French parentage with the showy blooms from its African lineage. These bushy little plants are neat and robust - just perfect for filling beds and containers or edging borders with long lasting colour. Height and spread: 35cm (14").

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

More info
    • 1 packet (100 marigold seeds)

    • Despatch: Within 1 days
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    • £2.29

Lobelia erinus 'Blue Splash'

Masses of white flowers splashed with marine blue to give an intriguing and unusual effect. Flowering up to 4 weeks earlier than many trailing lobelia varieties, 'Blue Splash' makes a sparkling addition to beds, containers, flower Pouches® and window-boxes. An easy to grow annual that is deservedly popular for its versatility and long flowering period. Height: 15cm (6"). Spread: 25cm (10"). More info
    • 1 packet (1000 lobelia seeds)

    • Despatch: Within 1 days
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    • £1.49 £0.99

Laurentia 'Stargazer Mixed'

Isotoma axillaris, Solenopsis axillaris

 Customer Rating
Attractive domes of fine foliage burst into colour with five-petalled evening-scented flowers. Superb in baskets, containers and Flower Pouches®. Sow before the end of January for flowers from July onwards.
More info
    • 1 packet (60 laurentia seeds)

    • Despatch: Within 1 days
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    • £0.99

Petunia grandiflora 'Limoncello' F1 Hybrid

The best ever yellow Petunia! Bushy, compact and free-flowering, with large wavy blooms in an attractive two tone creamy-yellow bicolour, resembling the delicious Italian liqueur. Adds a zest of lemon to borders or containers. Prefers a light, well drained soil in full sun. Height 20-25cm (8-10 inches). Growing tip: Get the best out of your petunias with our specially formulated Petunia Fertiliser - the perfect balance of nutrients to get them off to a flying start and nourish them through the summer. More info
    • 1 packet (40 petunia seeds)

    • Despatch: Within 1 days
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    • £2.99

Marigold 'Durango Tangerine' F1 Hybrid

Tagetes patula, French Marigold

A luxuriant variety with intense, rich, orange anemone-like flower heads, borne on branching, uniform plants. Exceptionally early flowering with outstanding garden performance. Height: 20-25cm (8-10in).

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

More info
    • 1 packet (40 marigold seeds)

    • Despatch: Within 1 days
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    • £2.99

Gazania 'Big Kiss White Flame' F1 Hybrid

Treasure Flower

A 'Big' addition to the 'Kiss' Gazania series. Possibly the largest-flowered bedding gazania from seed, the flowers of Gazania Big Kiss are 50% bigger than those of traditional varieties - each bloom is an amazing 12cm (4½in) in diameter! The white and rose striped petals of Gazania Big Kiss White Flame are simply stunning. Flowers all summer in a sunny garden situation - in borders or in containers on the patio. More info
    • 1 packet (15 gazania seeds)

    • Despatch: Within 1 days
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    • £3.99 £0.99