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 14 products.
 

Nasturtium 'Jewel of Africa'

Tropaeolum majus, Indian Cress

T&M own breeding. At last! Variegated climbing Nasturtiums. Available in a balanced mixture of yellows, reds, creams and peach/pinks with foliage which is attractively marbled and striped with cream, against a light green background. They make fantastic, dramatic container and basket plants or simply use them for effective ground cover. They also look good trailing and climbing over conifers, hedges and short walls. Please Note: Occasionally some plants produce pure green foliage, many but not all will develop variegation at a later stage.

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

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    • 1 packet (25 seeds)

    • Despatch: Within 8 days
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    • £2.99

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 seeds)

    • Despatch: Within 8 days
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    • £2.99

Cosmos bipinnatus 'Sweet Sixteen'

 Customer Rating

Eye-catching soft blushed pink blooms, each have distinct darker pink picotee edges and an attractive double frill in the centre of each flower. Cosmos Sweet Sixteen is ideal for adding height and interest to borders as well as making an intriguing cut flower.

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    • 1 packet (70 seeds)

    • Despatch: Within 8 days
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    • £2.99

Marigold 'Durango Tangerine' F1 Hybrid

Tagetes patula, French Marigold

A luxuriant variety with intense, rich, orange anemone-like flower heads, borne on branching, uniform plants. Exceptionally early flowering with outstanding garden performance. 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 (40 seeds)

    • Despatch: Within 8 days
    •  
    • £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.
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    • 1 packet (90 seeds)

    • Despatch: Within 8 days
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    • £3.99

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 8 days
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    • £3.39

Marigold 'French Vanilla' F1 Hybrid

Tagetes erecta, African Marigold

 Customer Rating
A triumph in plant breeding! A real creamy white flowered Marigold and at last something different in the colour spectrum from oranges and lemons. Flowers are pure in colour, 7.5cm (3in) across and prolific too. There is also a master stroke - 'French Vanilla' has less of the pungent Marigold smell. A definite improvement! Use them in formal or informal bedding, where they will contrast superbly with other bright or pastel flowers. A refreshing plant for the patio container too. Height: 30-38cm (12-15in).
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    • 1 packet (20 seeds)

    • Despatch: Within 8 days
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    • £4.89

Salvia splendens 'Blaze of Fire'

Scarlet Sage, Salvia splendens 'Fireball'

One of the most famous summer annual bedding plants, long flowering, early flowering, compact and neat. It is a frost tender annual. Ideal for bedding and edging. Other excellent sites are windowboxes and tubs. Flowers summer. Height 30cm (12in).
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    • 1 packet (100 seeds)

    • Despatch: Within 8 days
    •  
    • £2.69

Nicotiana x sanderae 'Fragrant Cloud'

Tobacco Plant

A very attractive and free flowering type with large pure white sweetly scented flowers on sturdy plants.
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    • 1 packet (1000 seeds)

    • Despatch: Within 8 days
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    • £2.19

Marigold 'Zenith Mixed'

Tagetes patula x erecta, Afro-French Marigold

 Customer Rating

The best ever bedding Marigold! Zenith is an Afro-French Hybrid, resulting in plants producing more flowers than almost as large as an African Marigold. Very bushy and vigorous plants producing masses of large crested or carnation-like flowers, in a wide range of yellows, reds, oranges and bicolour shades. Outstanding weather resistance. Ideal for planting en-masse creating the 'wow' factor in borders or containers. Height: 30-35cm (12-14in).

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

More info
    • 1 packet (40 seeds)

    • Despatch: Within 8 days
    •  
    • £2.69

Cosmos bipinnatus 'Double All Sorts Mixed'

This wonderful mixture contains a full range of flower forms and colours and includes much-sought-after picotees and stripes. An easy-to-grow annual which will flower all summer and its height means that it will make a superb backdrop to your borders or a long-lasting and pretty addition to flower arrangements! Height: 100-120cm (40-48in).
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    • 1 packet (100 seeds)

    • Despatch: Within 8 days
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    • £2.69

Antirrhinum majus 'Bronze Dragon'

Snapdragon

These eye-catching, bushy, dwarf plants have the darkest, almost black foliage we have ever seen on an Antirrhinum! Bred by Thompson & Morgan, Bronze Dragon looks almost as attractive before flowering as it does when smothered in its gorgeous, purple and white bicoloured blooms. Truly outstanding in borders or containers and can also boast very good rust resistance.
More info
    • 1 packet (100 seeds)

    • Despatch: Within 8 days
    •  
    • £2.99