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 60 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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    • £3.69 £0.99

Marigold 'Tomato Growing Secret'

Tagetes patula, French Marigold

Canny gardeners have been growing white fly repelling African and French marigolds alongside their tomatoes for decades. But we know that some marigolds make better white fly deterrents than others, and we've discovered the best there is! We're keeping the variety name under wraps, but we're happy to make it available to serious tomato growers. Try it this season alongside greenhouse and outdoor tomatoes - you'll even see your tomato plants grow better and bear more fruit with our marigolds around them.

 

Culinary note: French Marigold flowers are edible.

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 (50 marigold seeds)

    • Despatch: Within 1 days
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    • £2.99

Petunia 'Grand Rapids Mixed' F1 Hybrid

A first class variety for bedding, hanging baskets and tubs. Bred with emphasis on seedling vigour and uniformity, the plants have a good free flowering habit and look superb en masse. The flowers are large with most of the colours in the range having attractive veining, which gives more substance to the flowers and enables them to recover more quickly after bad weather. Flowers summer to first frost. Height: 30cm (12in).

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    • 1 packet (100 seeds)

    • Despatch: Within 1 days
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    • £2.99

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

Begonia x tuberhybrida 'Show Angels Mixed' F1 Hybrid

These exquisite begonias are the premier basket and container plant. With pendulous habit and an abundance of large, mostly fully double flowers, the selection contains some delightful picotees. They flower early, are uniform with vigour, and have good mildew resistance. Well worth the money! Height: 20-25cm (8-10in).

Culinary note: Add the bright coloured petals to sandwiches or salads for a light lemon taste and crisp texture. For more details about edible flowers click here.

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    • 1 packet (40 begonia seeds)

    • Despatch: Within 1 days
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    • £0.99

Petunia x hybrida 'Duo Mixed' F1 Hybrid

Bred with beauty and use in mind. A myriad of colour combinations sing-out from lacy orchid-like blooms, many striped and veined, others pure with only a hint of another contrasting colour. Early flowering, well branched plants produce a non-stop summer display in containers, bedding and baskets. One of the best Petunias giving value for money. Flowers summer. Height. 30cm (12 inches).Growing tipGet 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 (30 petunia seeds)

    • Despatch: Within 1 days
    •  
    • £3.69

Begonia semperflorens 'Lotto Mixed' F1 Hybrid

An exceptionally large flowered variety compared to normal Begonia semperflorens cultivars. Begonia 'Lotto' Mixed plants produce neat blooms with yellow centres in a sumptuous mix of colours. Perfect for creating a show-stopping display in containers, beds, baskets, and Flower Pouches®!Height and spread: 30cm (12").
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    • 1 packet (50 begonia seeds)

    • Despatch: Within 1 days
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    • £2.99 £0.99

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.

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    • 1 packet (25 seeds)

    • Despatch: Within 1 days
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    • £2.29

Petunia x hybrida 'Sophistica Antique Shades' F1 Hybrid

Extremely pretty petunia with large ruffled blooms, each one seemingly hand-painted in lovely shades of soft pink and blushed cream not previously seen in petunias. Suitable for pots or baskets, making a stunning patio feature where it will flower freely all summer.

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    • 1 packet (12 petunia seeds)

    • Despatch: Within 1 days
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    • £0.99

Marigold 'Dune Mixed'

Tagetes erecta, African Marigold

From the best of British breeding this outstanding African marigold offers amazing garden and container performance, in an eye-catching mixture of yellow, gold and orange. The flowers of this superb annual have a unique petal formation which prevents excessive water being held in the blooms, making them extremely weather resistant. Superb value for money, Marigold 'Dune Mixed' is the best open-pollinated marigold available! Height and spread: 30cm (12"). More info
    • 1 packet (40 marigold seeds)

    • Despatch: Within 1 days
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    • £2.49

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

Nasturtium 'Milkmaid'

Tropaeolum majus, Indian Cress

An almost white Nasturtium, featuring delicate blooms in captivating moonlit shades, the closest to white ever. Use this soft contrast in your beds, borders and containers for continuous summer colour. Easy to grow in a range of situations.

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 (30 nasturtium seeds)

    • Despatch: Within 1 days
    •  
    • £2.99