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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 253 products.
 
Cosmos Sulphureus Brightness Mixed

Cosmos sulphureus 'Brightness Mixed'

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 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.


Useful links:

Read Michael Perry's blog: Make a change to your plant choices

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    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.29
Nasturtium 'Crimson Emperor'

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.

Useful links:

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

 

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    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £1.99
Childrens - Nasturtium Jewel Of Africa

Nasturtium 'Jewel of Africa'

Tropaeolum majus, Indian Cress
T&M own breeding. At last! Variegated climbing Nasturtiums. Available in a balanced mixture of yellows, reds, creams and peach/pinks with foliage which is attractively marbled and striped with cream, against a light green background. They make fantastic, dramatic container and basket plants or simply use them for effective ground cover. They also look good trailing and climbing over conifers, hedges and short walls. Please Note: Occasionally some plants produce pure green foliage, many but not all will develop variegation at a later stage.

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

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    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
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    • £2.69
Marigold 'Paprika'

Marigold 'Paprika'

Tagetes tenuifolia, Signet Marigold
  • NEW in 2013
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 passed 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 2 Days
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    • £0.99
Petunia x hybrida 'Sparklers'

Petunia x hybrida 'Sparklers'

  • NEW in 2013
  • Fleuroselect Approved Novelty
The first ever star-shaped petunia from seed! A white version of this uniquely-shaped flower was originally sent to us by a customer in 1998. After 10 years of breeding and many generations of selection, the perfect star shape was obtained as well as this fabulous range of colours. Even the foliage of Petunia x hybrid ‘Sparklers’ is unusual, being pointed rather than rounded. Grow this striking variety in containers or let its spreading stems spill over the edges of hanging baskets for a most unusual summer display. Height: 30cm (12"). Spread: 35cm (14"). More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Busy Lizzie 'Divine' (New Guinea)

Busy Lizzie 'Divine' (New Guinea)

Impatiens x hawkeri
  • NEW in 2013
Cut the risk of disease with this robust, downy mildew resistant New Guinea Impatiens. Busy Lizzie ‘Divine’ flowers endlessly, in a wonderful bright colour mix, from June to November on strong, spreading plants that will quickly fill pots and cover beds and borders. Height: 30cm (12"). Spread: 35cm (14"). More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
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    • £3.99
Cosmos Bipinnatus Gazebo Mixed

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 2 Days
    •  
    • £2.99
Cosmos Bipinnatus Sensation Mixed

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 2 Days
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    • £2.09
Dahlia Variabilis Bishop's Children

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. More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Zinnia Elegans Purple Prince

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 2 Days
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    • £1.99
Marigold : Tomato Growing Secret

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 2 Days
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    • £2.49
Ipomoea Tricolour Heavenly Blue

Morning Glory 'Heavenly Blue'

Ipomoea tricolor, Ipomoea rubrocaerulea
 Customer Rating
Gorgeous sky blue flowers, up to 6cm (2½in) across that open in the morning, appear throughout summer on this free-flowering, elegant climber. Also suitable for greenhouse or conservatory growing. Prefers a sunny, sheltered, warm site; Beautiful climber ideal for warm site trellis, fences, poles, etc. More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.09