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 52 products.
 

Dahlia variabilis 'Showpiece Mixed Hybrids'

Several plants from this seed have won prizes on the show bench in USA, UK, Australia and New Zealand. This breeding produces sensational miniature decorative dahlias, very double and 3-4in across of a quality normally associated only with the most carefully selected of vegetatively propagated varieties. They have straight, strong stems and are remarkably floriferous in rich, bright colours including gold, crimson, purple, apricot and many shades of red and pink. More info
    • 1 packet (35 dahlia seeds)

    • Despatch: Within 1 days
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    • £0.99

Dahlia variabilis 'Redskin'

Very double, compact free-flowering with maroon to bronze-green foliage. A particularly good combination with marigolds. Height: 30-38cm (12-15in).
More info
    • 1 packet (30 dahlia seeds)

    • Despatch: Within 1 days
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    • £0.99

Rudbeckia hirta 'Green Eyes'

Coneflower, Rudbeckia 'Irish Eyes', Black-eyed Susan

Unique, with pointed yellow petals and olive green eye. Well branched, good for cutting.
More info
    • 1 packet (500 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £0.99

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

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 dahlia seeds)

    • Despatch: Within 1 days
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    • £2.99

Zinnia elegans 'Whirlygig Mixed'

Fill your beds and borders with these distinctly marked, brightly coloured, semi cactus-like blooms, each with contrasting petal tips. Zinnia elegans 'Whirlygig Mixed' is an outstanding garden performer, freely flowering throughout the summer. These vibrant zinnia flowers are ideal for attracting bees and butterflies to your garden and also make an attractive cut flower for a vase indoors. Height: 60cm (24"). Spread: 30cm (12").
More info
    • 1 packet (200 zinnia seeds)

    • Despatch: Within 1 days
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    • £1.99

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!

More info
    • 1 packet (100 zinnia 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

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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    • £2.69

Rudbeckia hirta 'Becky Mixed'

Coneflower, Black-eyed Susan

For the first time you can grow this cheerful, free flowering annual in containers and hanging baskets! Becky produces extra dwarf plants, neat and compact in a well balanced mixture of lemon to bright orange flowers, each with a slightly darker contrasting centre disc. They now make ideal basket and container plants flowering right up to first frost, producing large flowers measuring up to 15cm (6in) across! Flowers mid summer to frost. Height 20-25cm (8-10in).
More info
    • 1 packet (50 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £2.19

Zinnia elegans 'Candy Cane Mixed'

Excellent quality, scabious-flowered zinnia in a wide range of vivid colours including reds, pinks and oranges. Zinnia elegans Candy Cane Mixed will flower freely all summer. Ideal for cutting and will attract beneficial insects and butterflies to the garden. More info
    • 1 packet (100 zinnia seeds)

    • Despatch: Within 1 days
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    • £2.39

Rudbeckia hirta 'Prairie Sun'

Coneflower, Black-eyed Susan

 Customer Rating

An impressive debut for beds and borders, this unique new plant was awarded a Fleuroselect Gold Medal. The unusual blooms with central green cones and bright orange petals radiating back to lemon yellow, make dazzling cut flowers.

More info
    • 1 packet (25 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £3.49