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 140 products.
 

Cosmos bipinnatus 'Double All Sorts Mixed'

This wonderful mixture contains a full range of flower forms and colours and includes much-sought-after picotees and stripes. An easy-to-grow annual which will flower all summer and its height means that it will make a superb backdrop to your borders or a long-lasting and pretty addition to flower arrangements! Height: 100-120cm (40-48in).
More info
    • 1 packet (100 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99

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.
More info
    • 1 packet (50 nicotiana seeds)

    • Despatch: Within 1 days
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    • £2.99

Salvia farinacea 'Fairy Queen'

Mealy Sage, Mealycup Sage

Unique breeding has brought us this very visually appealing Salvia. Bushy, compact plants bear multiple spikes of attractive blue and white bicoloured flowers on distinctive dark stems. Flowers all summer and continues through to October in borders or containers. Height: 35-45cm (14-18in).
More info
    • 1 packet (40 salvia seeds)

    • Despatch: Within 1 days
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    • £0.99

Salvia 'Sahara Red'

Salvia splendens, Scarleyt Sage

This truly is an outstanding bedding salvia. We thought we had it covered with existing plants in our range, but the vigour and garden performance of Salvia 'Sahara Red' has truly amazed us. Vibrant red flowers are contrasted by perfectly dark green foliage and go on to out-perform all other red salvias with the longest flowering period. You're in for a treat with this easy grow summer essential. Height: 35cm (14"). Spread: 30cm (12"). More info
    • 1 packet (40 salvia seeds)

    • Despatch: Within 1 days
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    • £1.99

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: Within 1 days
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    • £1.49 £0.99

Antirrhinum majus 'Double Madame Butterfly Mixed' F1 Hybrid

Snapdragon

A flower in an entirely new form. Its large completely double, azalea-shaped blooms provide a riot of colour and its reliability and impressiveness are borne out by rare award of an All-America and All-Britain Selections Bronze Medal. Ideal for borders, bedding and superb cut flowers. Flowers summer. Height: 69-90cm (24-36in) More info
    • 1 packet (60 antirrhinum seeds)

    • Despatch: Within 1 days
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    • £3.99

Zinnia 'Zinderella Collection'

Zinnia elegans

The Zinnia 'Zinderella' Collection contains 1 packet each of Lilac and Peach. Zinderella Zinnias are real eyecatchers! ' Lilac' produces attractive lilac-pink blooms with contrasting dark centres, whilst 'Peach' produces orange blooms with cream and rose detailing and a strong central crest. Add height and interest to the middle of your garden borders by planting both varieties to create an orderly tiered display of blooms right through summer. Height: 90cm (36"). Spread 30cm (12"). More info
    • 2 packets - 1 of each colour (36 seeds in total)

    • Despatch: Within 1 days
    • SAVE £2.99  
    • £6.98 £3.99

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

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 antirrhinum seeds)

    • Despatch: Within 1 days
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    • £3.39