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 175 products.
 

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.

More info
    • 1 packet (100 seeds)

    • Despatch: Within 3 days
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    • £2.69

Antirrhinum majus 'Royal Bride'

Snapdragon

A wonderful antirrhinum of top quality. Stately plants with rich green foliage and spikes of large, purest white snap dragon flowers which have a rare, gorgeous fragrance. Superb for contrast in the border and makes an excellent cut flower.
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    • 1 packet (500 seeds)

    • Despatch: Within 3 days
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    • £2.99

Marigold 'Paprika'

Tagetes tenuifolia, Signet Marigold

Masses of small red, daisy-like flowers with a golden centre smother Marigold 'Paprika' all summer long. This pretty Signet marigold has a neatmound forming habit with finely cut, citrus scented foliage that smells fabulous as you brush past it. This pretty annual makes a vibrant addition to cottage garden borders, beds and containers for a colourful, long lasting display. Height and spread: 25cm (10").

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

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    • 1 packet (300 seeds)

    • Despatch: Within 3 days
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    • £1.99

Antirrhinum nanum 'Twinny Appleblossom' F1 Hybrid

Snapdragon

You can look forward to an extra long lasting display from this fully double snapdragon, because the flowers are so tightly ruffled that insects struggle to pollinate them. This superb variety has a basal branching habit that produces compact, bushy plants. An outstanding garden performer, Antirrhinum nanum 'Twinny Appleblossom' is perfect for filling your borders, beds and containers with pretty pastel shades throughout summer. Height: 30cm (12"). Spread: 25cm (10"). More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
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    • £3.39

Cosmos bipinnatus 'Gazebo Mixed'

 Customer Rating
A mid-height, easy to grow annual with well branched plants which come into flower earlier than most varieties. The attractive fern-like foliage is crowned with many large blooms of velvet red, rose-pink and pure white. An ideal border filler, or simply use in a large container or as a bedding plant. Flowers summer. Height: 60cm (24in).
More info
    • 1 packet (100 seeds)

    • Despatch: Within 3 days
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    • £2.99

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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    • £2.49

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 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Zinnia elegans 'Purple Prince'

 Customer Rating

Outstanding in Thompson & Morgan trials, these robust plants show excellent garden performance, flowering over a long period and producing an abundance of fully double, deep pink-purple, dahlia-like flowers. This is a taller-than-usual variety of zinnia which will add colour and height to border displays as well as to cut flower arrangements. Zinnia Purple Prince will flower all summer until the first frosts, attracting bees and butterflies as well as the admiration of your neighbours!

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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
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    • £1.99

Marigold 'Tomato Growing Secret'

Tagetes patula, French Marigold

For many decades in certain parts of the old world it has been the practice to grow African or French marigolds of a certain type to repel white fly on tomatoes in greenhouses or outdoors. It has also been found that the tomatoes grow better and bear more fruit with marigolds around them.

 

Culinary note: French Marigold flowers are edible.

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

More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Dahlia variabilis 'Giant Hybrids Mixed'

 Customer Rating

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

Zinnia elegans 'Pop Art Golden & Red'

  • Fleuroselect Approved Novelty
This magnificent variety is a worthy winner of its Fleuroselect Novelty award. The large golden blooms, carried on tall stems, are flecked and splashed with intricate red markings, making each bloom completely unique. These long lasting zinnia flowers are particularly attractive to butterflies and make a superb cut flower too. Zinnia elegans 'Pop Art Golden & Red' is perfect for creating an eye catching splash of colour in beds and borders. Height: 60cm (24"). Spread: 30cm (12").
More info
    • 1 packet (40 seeds)

    • Despatch: Within 3 days
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    • £2.89

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 seeds)

    • Despatch: Within 3 days
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    • £2.49