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.



We have found 326 products.
 

Ageratum houstonianum 'Blue Danube' F1 Hybrid

Floss Flower

A large-flowered, vigorous variety of annual ageratum with powder-puff flower heads of soft, lavender blue. The fluffy, weather resistant blooms are particularly attractive to butterflies. With a dense, compact habit, Ageratum houstonianum 'Blue Danube' is perfect for adding texture and colour to bedding, borders and containers. Height: 20cm (8”). Spread: 25cm (10”).
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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
    •  
    • £3.39

Dahlia variabilis 'Pompone Mixed'

 Customer Rating

Almost 100% pompon. Height: 90-120cm (3-4ft).

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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Mesembryanthemum 'Sparkles Mixed'

Dorotheanthus bellidiformis, Livingstone Daisy, Ice Plant

 Customer Rating

At last! A plant that not only tolerates, but positively thrives in dry, hot, sunny borders and rockeries! The succulent, fleshy-leaved plants cover the ground quickly, and become clothed in a rich carnival of colour all summer long.

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    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £1.99

Thunbergia alata 'Superstar Orange'

Black-eyed Susan

 Customer Rating
A stunning bright orange Black-Eyed Susan with the largest flowers we have ever seen on a seed raised Thunbergia. Vigorous plants quickly cover a trellis against a sunny fence, or look spectacular growing up an obelisk in a container.
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    • 1 packet (12 seeds)

    • Despatch: Within 3 days
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    • £3.99

Rudbeckia hirta 'Cappuccino'

Coneflower, Black-eyed Susan

 Customer Rating

For a fabulous focal point in borders, plant this dazzling rudbeckia! Large 15cm (6in) diameter blooms in bright shades of rusty gold with contrasting darker centres will bloom all summer long. Vigorous, well-branched and heat tolerant plants will produce stunning semi-tall flowers which are perfect for cutting.

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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.39

Cosmos bipinnatus 'Sonata Series Mixed'

An award winning variety in a superb mixture of colours. This beautiful dwarf Cosmos reaches a maximum height of 60cm (24”) making it perfectly proportioned for sunny borders and containers. The 8cm (3”) wide, daisy-like blooms of Cosmos 'Sonata Series Mixed' float above the finest lacy foliage. Strong stems and a long vase life make this compact annual ideal for cutting for a colourful bouquet. Cosmos 'Sonata Series Mixed' is particularly useful for exposed positions. Height: Up to 60cm (24”). Spread: 45cm (18”).
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    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Cobaea scandens

Cup And Saucer Vine, Cathedral Bells, Cups And Saucers, Mexican Ivy

 Customer Rating
A showy climber for the cool greenhouse, conservatory, and also forming a very decorative screen on trellis or south facing wall in milder areas. The large bell shaped 'cup and saucer' flowers are often 6cm (2½ in) across. Flowers late summer. Climber.
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    • 1 packet (9 seeds)

    • Despatch: Within 3 days
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    • £2.99

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.

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    • 1 packet (25 seeds)

    • Despatch: Within 3 days
    •  
    • £3.49

Marigold 'Durango Red'

Tagetes patula, French Marigold

An outstanding French Marigold because of the wonderful anemone-like flowers of mahogany-red. Their garden performance, uniformity, early flowering and basal branching make them a summer garden necessity. Height: 20-25cm (8-10in).

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

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    • 1 packet (45 seeds)

    • Despatch: Within 3 days
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    • £2.69

Antirrhinum majus 'Kim Bicolor Mixed' F1 Hybrid

Snapdragon

An exclusive cocktail of bright, bicoloured blooms, freely flowering on dwarf, compact, well-branched plants. Sure to create a dazzling display when used for bedding, containers or borders.
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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.89

Cosmos bipinnatus 'Pied Piper Red'

The only separate colour available in the Sea Shells type, with fluted, shell-like petals of velvet crimson-red. The ferny foliage helps to make this a wonderful cut flower as well as a good back of border plant.
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    • 1 packet (100 seeds)

    • Despatch: By end of August 2014
    •  
    • £0.99

Nasturtium 'Milkmaid'

Tropaeolum majus, Indian Cress

An almost white Nasturtium, featuring delicate blooms in captivating moonlit shades, the closest to white ever. Use this soft contrast in your beds, borders and containers for continuous summer colour. Easy to grow in a range of situations.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99