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 2 products.

Annual Flower Border Seed Collection

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 and spread: up to 45cm (18").
  • Collection comprises:
  • Short Annuals
  • Cosmos 'Brightness' (100 seeds) - Semi-double blooms above mounds of feathery green foliage.
  • Antirrhinum 'Reminiscent Mixed' F1 Hybrid (50 seeds) - Pastel blooms are carried on compact, bushy plants.
  • Californian Poppy 'Jelly Beans' (125 seeds) - Fully double blooms in a vibrant colour range.
  • Marigold 'Vanilla Cream' (50 seeds) - Gorgeous double blooms on neat bushy plants.
  • Zinnia 'Zahara Mixed' (15 seeds) - Possibly the best mixture of dwarf bedding zinnias available.
  • Medium Annuals
  • Calendula 'Neon' (100 seeds) - Glowing orange, double flowers edged in burgundy.
  • Wild Poppy 'Flanders' (2000 seeds) - Ideal for creating a bright splash of colour.
  • 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.
  • Dahlia 'Bishops Children' (50 seeds) - A fiery mix for a bright splash of long lasting colour.
  • Tall Annuals
  • Nicotiana sylvestris (2000 seeds) - Stout spikes bearing a cascading heads of fragrant white blooms.
  • Cosmos 'All sorts mixed' (100 seeds) - A colourful mix including the much-sought-after picotees and stripes.
  • Nasturtium 'Jewel of Africa' (25 seeds) - Variegated climbing Nasturtiums in a balanced mixture of colours.
  • Sweet Pea 'Fragrantissima' (35 seeds) - An even balance of colour and fragrance.
  • Ammi 'Graceland' (100 seeds) - Lacy white flower heads float above ferny foliage.
More info
    • 15 varieties - 1 packet of each (4930 seeds in total)

    • Despatch: by Monday
    • SAVE *£16.96  
    • £41.95 £24.99

Annual Flower Border Seed Collection (Tall)

Annuals flower throughout the summer and will create an eye-catching display in a sunny border, bring colour to your patios or brighten up a dull corner. To help you make the most of your borders or containers, we have grouped together varieties by height. In this collection you will receive the following varieties - Nicotiana sylvestris (2000 seeds), Cosmos 'All sorts mixed' (100 seeds), Nasturtium 'Jewel of Africa' (25 seeds), Sweet Pea 'Fragrantissima' (35 seeds), Ammi 'Graceland' (100 seeds). More info
    • 5 varieties - 1 packet of each (2260 seeds in total)

    • Despatch: by Monday
    • SAVE *£3.96  
    • £13.95 £9.99