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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 306 products.
 

Petunia 'Trailing Trio' Offer

The best-ever trailing petunias from seed! These spectacular cascading varieties will outperform expensive cutting-raised Surfinia® petunias every time, producing trailing stems of up to 1m (3ft) in length, continuously smothered in blooms all summer until the first frosts. 'Rose Vein Velvet' is the latest colour in the 'Velvet' series and promises to be as impressive as its forebears. Stunning in baskets, window boxes and other containers as well as in borders, where they make very effective and colourful ground cover.
Collection includes the varieties 'Purple Velvet', 'Rose Vein Velvet' and 'Salmon Velvet'.
More info
    • 1 packet of each variety (36 petunia seeds in total)

    • Despatch: Within 24 hours
    • SAVE *£2.38  
    • £11.37 £8.99

Nasturtium Duo

Tropaeolum majus, Indian Cress

One packet each of: Milkmaid and Black Velvet. For a full description and sowing & growing instructions please refer to each plant's individual listing.

Culinary note: The peppery flavour of the leaves and colourful flowers will enrich salads and the unripened seeds can used like capers – delicious combined with cream cheese or butter in canapés. For more details about edible flowers click here.

More info
    • 2 packets - 1 of each variety (45 nasturtium seeds in total)

    • Despatch: Within 24 hours
    • SAVE *£1.29  
    • £5.78 £4.49

Cosmos bipinnatus 'Double Click Trio'

Double Click Trio comprises 1 packet each of:
Cosmos 'Double Click' Mixed - stunningly vivid blooms, each with a double row of unusually fluted petals, range in colour from rosy-red to white and pink shades.
Cosmos Double Click 'Rose Bonbon' - spectacular, rose-pompom flowers sit proudly on top of strong stems, making Double Click Rose Bonbon a 'must' for adding height to summer borders.
Cosmos Double Click 'Snow Puff' - spectacular white, pompom flowers with a delicate hint of blushed pink.
More info
    • 3 packets - 1 of each variety (165 cosmos seeds in total)

    • Despatch: Within 24 hours
    • SAVE *£1.98  
    • £8.97 £6.99

Nicotiana Duo

Tobacco Plant

Collection comprises one packet each of:
Sylvestris - this imposing half hardy annual has stout spikes bearing a cascading head of fragrant 3½in long white blooms. It grows to a height of 90-120cm (36-48in) making it an excellent subject for the border. Occasionally a short lived perennial in a warm sheltered site.
Suavolens - delightful, slender, white, nodding tubular blooms with a hint of blush, grace long, slender stalks shooting out from a base of mid-green leaves. Sweetly fragrant in the evening and early morning, adding a little height and a lot of style to your borders. Height of 60-80cm (24-32in).
More info
    • 2 packets - 1 of each variety (2100 nicotiana seeds in total)

    • Despatch: Within 24 hours
    • SAVE *£1.19  
    • £4.68 £3.49

Laurentia (Duo)

Isotoma, Solenopsis axillaris

Collection comprises one packet each of Avant-Garde Blue & Avant-Garde Pink: T&M's flower breeders have struck gold with the first ever F1 Hybrid Laurentia to be entered into the Fleuroselect trials. Both Avant-Garde Blue and 'Pink' have the same uniform, vigorous plant habit and have earlier scented, star shaped blooms which are produced in abundance over a long flowering season. Your garden will be filled with colour all summer. Height: 25-30cm (10-12in).
More info
    • 2 packets - 1 of each variety (100 laurentia seeds in total)

    • Despatch: Within 24 hours
    • SAVE *£1.49  
    • £4.98 £3.49

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: Within 24 hours
    • SAVE *£4.56  
    • £14.55 £9.99

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: Within 24 hours
    • SAVE *£16.96  
    • £41.95 £24.99

Annual Flower Border Seed Collection (Short)

  • Collection comprises:
  • Cosmos 'Brightness' (100 seeds) - Semi-double blooms in clear shades of red, yellow and orange are borne above mounds of feathery green foliage.
  • Antirrhinum 'Reminiscent Mixed' F1 Hybrid (50 seeds) - Pastel blooms are carried on compact, bushy plants, attracting bees and other pollinating insects.
  • Californian Poppy 'Jelly Beans' (125 seeds) - Fully double blooms in a vibrant colour range glisten above a mass of feathery blue-green foliage.
  • Marigold 'Vanilla Cream' (50 seeds) - Gorgeous vanilla cream double blooms on neat bushy plants.
  • Zinnia 'Zahara Mixed' (15 seeds) - Possibly the best mixture of dwarf bedding zinnias available for an exceptional garden performance.
More info
    • 5 varieties - 1 packet of each (340 seeds in total)

    • Despatch: Within 24 hours
    • SAVE *£3.46  
    • £13.45 £9.99

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: Within 24 hours
    • SAVE *£3.96  
    • £13.95 £9.99

Cosmos bipinnatus 'Sensation Mixed'

 Customer Rating

A tall, upright variety for the back of sunny borders. Cosmos 'Sensation Mixed' produces masses of daisy-like flowers above delicate ferny foliage throughout summer and autumn. The strong stems and long lasting flowers of this easy to grow annual make it perfect for cutting. This fabulous mix contains a superb range of colours including white, pink and carmine. Height: 120cm (47"). Spread: 60cm (24").

More info
    • 1 packet (200 cosmos seeds)

    • Despatch: Within 24 hours
    •  
    • £2.69
    • 1 packet (80 cosmos seeds - seed tape)

    • Despatch: Within 24 hours
    •  
    • £2.69

Marigold 'Bonita Mixed'

Tagetes patula, French Marigold

A sparkling mixture of free flowering, large carnation-sized blooms. Superb for bedding. Height 12in.

Culinary note: The citrus tasting flowers have many uses, try them in salads, sandwiches or seafood dishes too. For more details about edible flowers click here.

More info
    • 1 packet (200 marigold seeds)

    • Despatch: Within 24 hours
    •  
    • £1.99
    • 1 packet (53 marigold seeds - seed tape)

    • Despatch: Within 24 hours
    •  
    • £2.99

Cosmos bipinnatus 'Xanthos'

  • A totally new cosmos that's already causing a big stir!
  • Unique cosmos colour
  • Compact and early flowering
  • Garden performance guaranteed

Unique soft-yellow blooms are produced in profusion on compact dwarf plants, bringing real impact to patio containers, beds and borders. This early flowering cosmos will start to bloom in as little as 70 days from sowing, going on to offer to six months of colour from May to October - keep on top of the deadheading and new flowers will just keep coming!



Use the classy blooms en masse for an elegant feel to your displays, if not, set them in combination with other annuals to complement pastel shades or calm hot colours. The stand-out flowers also make a great underplanting to shrubs and hedging. These compact cosmos plants are the perfect option for exposed gardens where taller varieties would be blown about by the wind. Height: 60cm (24"). Spread: 40cm (16").
More info
    • 1 packet (30 cosmos seeds)

    • Despatch: Within 24 hours
    •  
    • £3.69
    • 2 packets (60 cosmos seeds)

    • Despatch: Within 24 hours
    •  
    • £4.49