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 55 products.
 

Petunia grandiflora 'Double Cascade Burgundy Plum Vein' F1 Hybrid

Giant, fully double flowers of burgundy or plum veined, often more than 10cm (4in) across! Add to this its cascading habit and you have one of the very best basket and container plants creating a waterfall of pleated powderpuffs all summer long. Height: 23-30cm (9-12in). 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.Click here to buy now. More info
    • 1 packet (25 petunia seeds)

    • Despatch: Within 1 days
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    • £3.49

Cosmos bipinnatus 'Pied Piper Red'

The only separate colour available in the Sea Shells type, with fluted, shell-like petals of velvet crimson-red. The ferny foliage helps to make this a wonderful cut flower as well as a good back of border plant.
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    • 1 packet (100 cosmos seeds)

    • Despatch: Within 1 days
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    • £0.99

Marigold 'Striped Marvel'

Tagetes patula, French Marigold

Raised by a Scottish T&M customer. We are delighted to introduce such a refreshing break in colour. Each petal is evenly divided by a red and yellow stripe and this produces a thoroughly eye-catching effect. The bushy, uniform plants produce masses of flowers, excellent for bedding and particularly good for cutting, lasting well in water. Occasional all yellow bloom produced through climate stress. Height: 60-75cm (24-30in).

Culinary note: The citrus tasting flowers have many uses, try them in salads, sandwiches or seafood dishes too. For more details about edible flowers click here.

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    • 1 packet (100 marigold seeds)

    • Despatch: Within 1 days
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    • £1.99 £0.99

Cosmos sulphureus 'Brightness Mixed'

 Customer Rating

Possibly the most free-flowering cosmos of this type. Dwarf and bushy plants are covered with flowers in a delightful mixture of gold, lemon, orange and red from early summer through to the autumn frosts. Spectacular when planted towards the front of annual borders or in containers.

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    • 1 packet (100 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99

Mina lobata

Ipomoea lobata, Spanish Flag, Ipomoea versicolor, Quamoclit lobata

 Customer Rating
An exotic looking climber, with twining stem ideal for rambling over trellises, fences etc. The flowers are very impressive with up to 12 per flower spike producing a spectacular combination as they age. They start off a most powerful and stunning bright red and as they mature they go from red to orange, orange to yellow and from yellow to white and all are out at the same time. A plant positively loaded with flowers is an impressive sight. Climbs to 120-180cm (4-6ft).
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    • 1 packet (16 mina lobata seeds)

    • Despatch: Within 1 days
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    • £2.99

Gazania 'Kiss Bronze' F1 Hybrid

Treasure Flower

Very early and free flowering even in dull, cool weather. Naturally compact, strong basal branches, ensuring multiflowering plants. Ideal for borders, and containers. More info
    • 1 packet (20 gazania seeds)

    • Despatch: Within 1 days
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    • £3.69

Nasturtium 'Whirlybird Cherry'

Tropaeolum majus, Indian Cress

Low mounds covered with a mass of bloom. The semidouble cherry rose flowers are carried well above the foliage and face upwards so all are visible. Ideal for bedding, borders, tubs, containers etc. Flowers can be cut for unusual floral decorations. Flowers summer/autumn. Height 30cm (12in).


Culinary note: The peppery flavour of the leaves and colourful flowers will enrich salads and the unripened seeds can used like capers – delicious combined with cream cheese or butter in canapés. For more details about edible flowers click here.

More info
    • 1 packet (25 seeds)

    • Despatch: Within 1 days
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    • £2.29

Amaranthus tricolor 'Joseph's Coat'

Chinese Spinach, Tampala, Callaloo

An improved form with yellow-scarlet and green foliage all on one plant, it makes a striking bedding plant for its foliage alone and produces erect brush like deep red 6in flower spikes which are good for cutting. Also suitable for growing in 5-6in pots. Flowers late summer. Height: 45-60cm (18-24in). More info
    • 1 packet (100 amaranthus seeds)

    • Despatch: Within 1 days
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    • £3.49

Antirrhinum nanum 'Black Prince'

Snapdragon

Deep crimson flowers and bronze foliage. More info
    • 1 packet (750 antirrhinum seeds)

    • Despatch: Within 1 days
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    • £0.99

Zinnia 'Red Spider'

Zinnia tenuifolia

This dazzling Zinnia is sure to attract some admiring glances, as it tip toes suggestively though beds and borders. Exquisite neat and compact plants with masses of rich, scarlet flowers, with scalloped petals of the most alluring, spider like appearance. A sunny position brings to life this magical colour, which is a striking complement to any bedding display. Height: 60-75cm (24-30in). More info
    • 1 packet (50 zinnia seeds)

    • Despatch: Within 1 days
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    • £2.99 £0.99

Nasturtium 'Crimson Emperor'

Tropaeolum majus, Indian Cress

Masses of deep crimson blooms with golden yellow throats cover the lax, sprawling stems of this vigorous variety. The semi-trailing habit and lush green foliage make Nasturtium 'Crimson Emperor' an ideal choice for summer groundcover. Perfect covering banks, filling beds and borders or spilling from baskets and patio containers. Height: 30cm (12"). Spread: 200m (78").

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

Press release: Chance find becomes Thompson & Morgan's Flower of the Year

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    • 1 packet (30 nasturtium seeds)

    • Despatch: Within 1 days
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    • £2.69

Californian Poppy 'Copper Swirl'

California poppy, Eschscholzia californica

Californian Poppy 'Copper Swirl' are so easy to grow from seed, simply sow directly into borders for a dazzling display of fruity colours on these delightful crinkled flowers. Thompson & Morgan are proud to have bred this fresh range of Californian Poppies which are drought tolerant and require no special treatment! Ideal for beds, borders, rockeries or dry sunny banks. Height and Spread: 25cm (10").
More info
    • 1 packet (200 californian poppy seeds)

    • Despatch: Within 1 days
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    • £1.99