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 108 products.
 
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
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    • £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
    •  
    • £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
Bacopa Cordata Snowtopia White

Bacopa cordata 'Snowtopia White'

Sutera cordata
  • Spectacular trailing habit

The trailing, evergreen stems of this half-hardy basket filler bear a smothering of snow white flowers throughout summer. Let bacopa plants tumble from mixed patio containers and baskets for a brilliant display throughout summer. Height: 15cm (6"). Spread: 45cm (18").


Please note: This seed is sold as a multi-seeded pellet for easy sowing into modules or Jiffy 7’s to aid easy planting.

 More info
    • 1 packet (10 pellets)

    • Despatch: Within 2 Days
    •  
    • £3.49
Marigold 'Dune Mixed'

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 2 Days
    •  
    • £1.99
Bacopa Cordata Blutopia Blue

Bacopa cordata 'Blutopia Blue'

Sutera cordata
A delightful plant with pale blue flowers which is spectacular when planted on its own or with other plants in baskets or containers. Sold as a multi-seeded pellet for easy sowing into modules or Jiffy 7's™ to aid easy planting. Height: 5-15cm (2-6in) - Trailing up to 45cm (18in). More info
    • 1 packet (10 pellets)

    • Despatch: Within 2 Days
    •  
    • £3.49
Petunia X Hybrida Purple Velvet F1 Hybrid

Petunia x hybrida 'Purple Velvet' F1 Hybrid

The best ever basket petunia from seed! 'Purple Velvet' out-performs expensive cutting raised Surfinia petunias. Trailing stems, up to 1m (3ft) in length, are continuously smothered in velvety, purple blooms until the first frosts.Excellent for baskets and containers. Can also be planted in borders where it will make very effective ground cover. 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 (12 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.69
Dahlia variabilis 'Starlight Mixed' - Part of the Alan Titchmarsh Collection

Dahlia variabilis 'Starlight Mixed' - Part of the Alan Titchmarsh Collection

 
  • NEW in 2013
Dahlia 'Starlight Mixed' produces fabulous, windswept blooms in every colour of the rainbow. A nice, distinct dahlia for bedding or for planting in big groups in patio pots. Height and spread: 40cm (16"). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.99
Petunia Hybrida Salmon Velvet F1

Petunia hybrida 'Salmon Velvet' F1 Hybrid

The best ever trailing Petunia from seed! Following the success of our customer favourite Purple Velvet we have the next colour in the series - Salmon Velvet. These will outperform expensive cutting-raised Surfinia Petunias. Producing trailing stems up to 1m (3ft) in length, continuously smothered in blooms all summer until the first frosts. Can also be planted in borders, where it will make very effective ground cover. 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 (12 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.69
Marigold 'Durango Tangerine' F1

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 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Marigold 'Durango Bee' F1

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 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Dahlia Variabilis Dwarf Mixed

Dahlia variabilis 'Dwarf Mixed'

Vivid, large single and semi-double 8cm (3in) flowers. Neat, mound shaped bushes achieving a memorable main bedding display. More info
    • 1 packet (75 seeds)

    • Despatch: Within 2 Days
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    • £2.49