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 104 products.
 

Dahlia variabilis 'Pompone Mixed'

 Customer Rating

Almost 100% pompon. Height: 90-120cm (3-4ft).

More info
    • 1 packet (50 dahlia seeds)

    • Despatch: Within 1 days
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    • £2.99

Dahlia variabilis 'Double Extreme'

Extremely attractive dwarf selection, producing a mass of high quality double and semi double flowers in an rich colour mixture, featuring some unique sunset shades. A stunning addition for beds, borders or containers, providing colour throughout the summer. Height: 45-60cm (18-24 inches). More info
    • 1 packet (25 dahlia seeds)

    • Despatch: Within 1 days
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    • £2.99

Zinnia elegans 'Lilliput Mix'

A superb blend of this most unusual flower type, specially selected for its wide range of bright colours. Attractive fully double 2.5-3cm (1-1½in) pom-pom like flowers are stunning in borders or as a cut flower. Height: 45-50cm (18-20in). More info
    • 1 packet (200 zinnia seeds)

    • Despatch: Within 1 days
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    • £0.99

Begonia x tuberhybrida 'Non-Stop® Mixed' F1 Hybrid

Nine different colours, put these in a class of their own for impact with 7-9cm (3-3½in) blooms. 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.

More info
    • 1 packet (40 begonia seeds)

    • Despatch: Within 1 days
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    • £4.99

Rudbeckia hirta 'Cappuccino'

Coneflower, Black-eyed Susan

 Customer Rating

For a fabulous focal point in borders, plant this dazzling rudbeckia! Large 15cm (6in) diameter blooms in bright shades of rusty gold with contrasting darker centres will bloom all summer long. Vigorous, well-branched and heat tolerant plants will produce stunning semi-tall flowers which are perfect for cutting.

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    • 1 packet (50 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £2.39

Nicotiana x sanderae 'Perfume Deep Purple' F1 Hybrid

Tobacco Plant

 Customer Rating
This fashionable deep-purple color adds a touch of class to summer displays when planted en-masse in borders. Ideal for container plantings, as well as filling the evening air with its delicate perfume.
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    • 1 packet (50 nicotiana seeds)

    • Despatch: Within 1 days
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    • £2.99

Phlox drummondii 'Starry Eyes'

Annual Phlox

 Customer Rating
  • Taller than normal phlox
Free-flowering in a wonderful array of colours, this half-hardy annual is a must for annual borders and cottage gardens. Each brightly coloured bloom has a unique star pattern and emits a light fragrance. Easy to grow and weather tolerant, the bushy, compact habit of Phlox 'Starry Eyes' makes it ideal for planting in drifts at the edge of borders and in annual beds, performing equally well in containers. Slightly taller than normal annual phlox plants, Phlox 'Starry Eyes' is perfect for cutting for a fragrant arrangement indoors. Height: 45cm (18"). Spread: 30cm (12").
More info
    • 1 packet (300 phlox seeds)

    • Despatch: Within 1 days
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    • £2.19

Phlox drummondii 'Moody Blues'

Annual Phlox

Free flowering in a beautiful range of attractive blue shades, this easy to grow, half hardy annual is a cottage garden classic. Phlox drummondii 'Moody Blues' has a compact bushy habit that makes it ideal for planting in loose drifts at the edge of borders, and performs equally well in containers. Annual Phlox also makes a delightful cut flower so you can enjoy it in your home too! Height: 25cm (10"). Spread: 30cm (12"). More info
    • 1 packet (175 phlox seeds)

    • Despatch: Within 1 days
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    • £1.99

Zinnia elegans 'Envy Double'

Chartreuse-green unique colour, and suitable for semi-shaded sheltered sites. More info
    • 1 packet (100 zinnia seeds)

    • Despatch:
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    • £1.49 £0.99
    • Out of stock

Nicotiana x sanderae 'Sensation Mixed'

Tobacco Plant

 Customer Rating

A showy and compact variety with sweetly scented flowers which stay open all day in a brilliant range of colours. Recommended. Flowers summer to autumn. Height 60-90cm (24-36in).

More info
    • 1 packet (2000 nicotiana seeds)

    • Despatch: Within 1 days
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    • £0.69

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 dahlia seeds)

    • Despatch: Within 1 days
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    • £2.99

Zinnia 'Red Spider'

Zinnia tenuifolia

This dazzling Zinnia is sure to attract some admiring glances, as it tip toes suggestively though beds and borders. Exquisite neat and compact plants with masses of rich, scarlet flowers, with scalloped petals of the most alluring, spider like appearance. A sunny position brings to life this magical colour, which is a striking complement to any bedding display. Height: 60-75cm (24-30in). More info
    • 1 packet (50 zinnia seeds)

    • Despatch: Within 1 days
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    • £2.99 £0.99