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 130 products.
 

Antirrhinum majus 'Circus Clowns'

Snapdragon

A colourful twist on a cottage garden favourite! The bright bicolour blooms of this cheery Snapdragon mix will bring something different to your summer beds and borders. Medium height spires stand proudly above bushy, well branched plants that show outstanding garden performance. The upright flower spikes are always a magnet for pollinating insects and make excellent cut flowers. Antirrhinum majus 'Circus Clowns' makes a vibrant display in patio containers or planted en masse for a big impact in beds and borders. Height: 45cm (18"). Spread: 35cm (14"). More info
    • 1 packet (200 antirrhinum seeds)

    • Despatch:
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    • £0.99
    • Out of stock

Nasturtium 'Phoenix'

Tropaeolum minus, Indian Cress

Curious split petals make the flame-like flowers of Nasturium 'Phoenix' particularly eye catching. Prolific and free flowering, the blooms are produced in abundance in beautiful fiery shades of gold, orange and red. Like all Nasturtiums, it's easy to grow. Let its bushy stems spill from hanging baskets and window boxes or create a carpet of colour in beds and borders. Height: 30cm (12"). Spread: 35cm (14").

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

More info
    • 1 packet (25 nasturtium seeds)

    • Despatch:
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    • £2.69
    • Out of stock

Dahlia variabilis 'Giant Hybrids Mixed'

 Customer Rating

Huge flowered, double, semi-double and a few singles of the best cut flower varieties. Height: 90-150cm (3-5ft).

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    • 1 packet (40 dahlia seeds)

    • Despatch: Within 1 days
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    • £2.99

Cosmos bipinnatus 'Gazebo Mixed'

 Customer Rating
A mid-height, easy to grow annual with well branched plants which come into flower earlier than most varieties. The attractive fern-like foliage is crowned with many large blooms of velvet red, rose-pink and pure white. An ideal border filler, or simply use in a large container or as a bedding plant. Flowers summer. Height: 60cm (24in).
More info
    • 1 packet (100 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.99

Begonia x tuberhybrida 'Blackmore & Langdon's Large Flowered Picotees Mixed'

 Customer Rating
Blackmore &: Langdon have specialised in breeding tuberous begonias since 1901, and have won over 70 gold medals at the Chelsea Flower Show for their eye-catching displays. T&M are delighted to be able to offer this spectacular large flowered picotee mixture producing high quality blooms in a wide range of picotee shades perfect for growing in containers. Being a seed raised mixture you may even find an unusual colour combination never seen before! Height: 40-45cm (16-18in).

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

More info
    • 1 packet (20 begonia seeds)

    • Despatch: Within 1 days
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    • £0.99

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 (100 cosmos seeds - seed tape)

    • Despatch: Within 1 days
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    • £2.99
    • 1 packet (200 cosmos seeds)

    • Despatch: Within 1 days
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    • £2.69

Petunia x hybrida 'Super Cascade Improved' F1 Hybrid

 Customer Rating
The first fully integrated petunia mixture. For hanging baskets, containers and walls. The Super Cascades are much freer flowering and will cascade in 8 different colours - blue, white, pink, blush, cerise, salmon, scarlet and violet from a formula blending of seed. Weather tolerance, heat and wet, is excellent, they bloom from planting out to frost and have good drought tolerance. Growing tip: Get the best out of your petunias with our specially formulated Petunia Fertiliser - the perfect balance of nutrients to get them off to a flying start and nourish them through the summer.
More info
    • 1 packet (90 petunia seeds)

    • Despatch: Within 1 days
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    • £3.99

Nasturtium 'Climbing Mixed'

Tropaeolum majus, Indian Cress

These long-flowering vigorous climbing plants look spectacular when trained over walls, fences and hedges. They lack tendrils, but will scramble happily over trellis work, sheds, fences etc. Flowers summer-autumn. Climber.

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

More info
    • 1 packet (40 nasturtium seeds)

    • Despatch: Within 1 days
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    • £2.29

Petunia hybrida grandiflora 'Superbissima'

 Customer Rating
The largest Petunia flowers we have ever seen, bred on from those available over 100 years ago! Robust plants produce huge 10-15cm (4-6in) wide exotic looking frilly blooms, in an attractive mixture of pinks, reds and purples, each with rich veining and attractive dark eyes. An eye-catching addition to borders or containers. Height: 30-35cm (12-14in). Growing tip: Get the best out of your petunias with our specially formulated Petunia Fertiliser - the perfect balance of nutrients to get them off to a flying start and nourish them through the summer.
More info
    • 1 packet (50 petunia seeds)

    • Despatch: Within 1 days
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    • £0.99

Begonia x tuberhybrida 'Scentsation Mixed' F1 Hybrid

The very first fragrant Begonia from seed! These vigorous plants produce wonderful, double to semi-double, pastel-coloured flowers and are stunning grown in individual pots or mixed containers. On damp mornings and sunny days, your garden will be filled with a delightful medley of fragrances from fresh lemon to a soft rose scent. This T&M New and Exclusive is sure to sell out, so place your order fast!

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

More info
    • 1 packet (50 begonia seeds)

    • Despatch: Within 1 days
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    • £0.99

Dahlia variabilis 'Cactus Hybrids Mixed'

 Customer Rating

Curvaceous, spiky blooms, huge cut flower source, many fully double and mostly true to type. Superb too in the flower border for late summer/autumn blooms. Flowers late summer/autumn. Height 3-4ft. Planting distance 27 inches.

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    • 1 packet (56 dahlia seeds)

    • Despatch: Within 1 days
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    • £0.99

Lobelia erinus 'Cascade Mixed'

 Customer Rating

These trailing lobelia plants produce fountains of bloom in burgundy, violet, lilac and Cambridge blue, as well as a few bicolours! Lobelia 'Cascade' Mixed makes a sparkling addition to containers, flower Pouches® and window-boxes. An easy to grow annual that is deservedly popular for its versatility and long flowering period. Trails to: 25cm (10"). Spread: 15cm (6").

More info
    • 1 packet (1500 lobelia seeds)

    • Despatch: Within 1 days
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    • £2.69