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 10 products.
 
Aster Chinensis Milady Mixed

Aster 'Milady Mixed'

Callistephus chinensis, China Aster
Excellent for bedding , these plants are robust, bushy and very wilt resistant. Well formed, globular, weather resistant flowers in blue, pink, rose, rose-red and white are produced over a long period. Useful as a summer flowering pot plant, for window boxes etc. More info
    • 1 packet (150 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Rudbeckia Hirta Toto

Rudbeckia hirta 'Toto'

Coneflower, Black-eyed Susan
Dwarf, compact plants which have plenty of strong side shoots and many rich golden-yellow blooms, each with a deep chocolate central cone. Early to flower over a long period and looking great in all types of weather. An ideal candidate for containers, bedding or grown in groups in the border. Flowers summer. Height: 25cm (10in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49

Lobelia erinus 'Mrs Clibran Improved'

Very useful for edging. Deep-blue flowers with a pretty, contrasting white eye. More info
    • 1 packet (2000 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.09
Salvia Splendens Red Arrows

Salvia splendens 'Red Arrow'

Scarlet Sage
An excellent all-rounder. Red Arrow produces lots of vivid red flowers set-off against deep green foliage and its excellent lateral branching habit makes it very effective in mass displays in beds, borders etc. Recommended also for window boxes, patio tubs, containers etc. Flowers summer. Height 28cm (11 in). More info
    • 1 packet (60 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.09
Marigold 'Discovery Mixed'

Marigold 'Discovery Mixed'

Tagetes erecta, African Marigold
Spectacular 6-7cm (2½in-3in) double blooms in a mixture of gold, orange and yellow, on dwarf sturdy plants, makes it a considerable improvement on its nearest rival. It is quite as dwarf as many French marigolds and very neat and tidy whilst retaining its huge and fully double blooms, extraordinary reliability and almost legendary heat and poor weather tolerance. Flowers mid to late summer. Height 20-25cm (8-10in). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Petunia X Hybrida Duo Mixed F1

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 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.69
Marigold Patula X Erecta Sunburst Mixed F1 Hybrid

Marigold 'Sunburst Mixed' F1 Hybrid

Tagetes patula x erecta, Afro-French Marigold

A superb four-colour marigold cross, Sunburst Mixed combines the flower power, garden performance and great weather resistance of a French marigold with fabulous flowers that are almost as large as those of an African marigold. Spectacular planted in large drifts as part of a bedding display as well as in large containers.


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
    •  
    • £2.29
Gazania Hybrida Talent Mixed

Gazania hybrida 'Talent Mixed'

Treasure Flower
This very attractive mixture of The Treasure Flower has delicately cut, silvery-white foliage which makes the plant a pleasure to see, even out of flower. The bright blooms, opening in the sun, come in a range of colours from creams and yellows, to oranges, reds and mauves, and are borne on short stems, making them excellent for windy sites. They make refreshingly different plants for bedding and border edging. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.69
Kew : Salvia Red Arrows

Salvia splendens 'Red Arrow' - Kew Collection Seeds

Scarlet Sage
An excellent all-rounder. Red Arrow produces lots of vivid red flowers set-off against deep green foliage and its excellent lateral branching habit makes it very effective in mass displays in beds, borders etc. Recommended also for window boxes, patio tubs, containers etc. Flowers summer. Height 28cm (11 in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.09
Marigold 'Honeycomb'

Marigold 'Honeycomb'

Tagetes patula, French Marigold
Vibrant warmth of colours. Crested, fully double, prolific 2in blooms create one of summer's most glowing displays.

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

 More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.69