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 3 products.

Cineraria 'Dwarf British Beauty Mixed'

Pericallis x hybrida, Cineraria cruentus, Cineraria x hybrida, Florists' Cineraria, Senecio x hybridus

 Customer Rating
Neat plants with a rounded and graceful habit, in a brilliant, range of colours. An economical way of producing early spring flowering pot plants as they need little more than frost exclusion, Winter temperatures should not exceed 13C (55F) and can be as low as 7C (45F). Flowers spring onwards. Height/Spread: 25/25cm (10/10in).
More info
    • 1 packet (40 cineraria seeds)

    • Despatch: by Monday
    • £3.69 £0.99

Alyssum maritima procumbens 'Tetraploid White'

Alyssum maritima procumbens

Tetrapliod plants carry twice as many chromosomes as normal 'diploid' plants, bringing the potential for twice the flower power, and that's exactly what you'll get with Alyssum 'Tetraplod White'. Plants are larger flowered than traditional alyssums, will flower for longer and have better garden performance whether you plant them in the ground or in patio pots. This is the must have alyssum for your garden in 2016. Height and Spread: 20cm (8"). More info
    • 1 packet (300 alyssum seeds)

    • Despatch: by Monday
    • £2.29

Annual Flower Border Seed Collection (Medium)

Summer flowering annuals are ideal for creating a quick and easy parade of colour for your borders and containers. With so many to choose from, it can be hard to decide which annuals to grow for the most effective display. We've grouped together varieties by height to help you make the best of your borders. Height: up to 75cm (30"). Spread: up to 45cm (18").

  • Collection comprises:
  • Calendula 'Neon' (100 seeds) - Glowing orange, double flowers edged in burgundy.
  • Wild Poppy 'Flanders' (2000 seeds) - Ideal for creating a bright splash of colour in a sunny corner.
  • Rudbeckia 'All Sorts Mixed' (170 seeds) - Doubles, singles, quilled blooms and more.
  • Cerinthe 'Major Purpurascens' (10 seeds) - Unusual, nodding, rich purple flowers, surrounded by blue-purple bracts, appear at the stem tips.
  • Dahlia 'Bishops Children' (50 seeds) - A fiery mix for a bright splash of long lasting colour.
More info
    • 5 varieties - 1 packet of each (2330 seeds in total)

    • Despatch: by Monday
    • SAVE *£4.56  
    • £14.55 £9.99