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 34 products.
 

Petunia milliflora 'Fantasy' F1 Hybrid

Petunia "Fantasy" has a habit which is not just a miniature but also compact. In fact they are 36 per cent the size of normal multiflora types and it means that plants don't become straggly and untidy but remain neat and uniform. This beautiful formulated mixture comes in a wide range of colours. They are highly floriferous with outstanding garden performance in most conditions and look a real knock-out in containers, baskets and border edging. 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 (75 petunia seeds)

    • Despatch: Within 1 days
    •  
    • £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
    • HALF PRICE  
    • £2.69 £1.34

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.

More info
    • 1 packet (40 marigold seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Lobelia erinus 'White Cascade'

Freely branching plants are covered in myriads of bloom to create clouds of dazzling ice white lobelia flowers. Exquisite trailing Lobelia 'White Cascade' makes an outstanding display when massed in containers, flower Pouches® and window-boxes. An easy to grow annual that is deservedly popular for its versatility and long flowering period. Height: 15cm (6"). Spread: 25cm (10"). More info
    • 1 packet (1750 lobelia seeds)

    • Despatch: Within 1 days
    •  
    • £2.19

Lobelia erinus 'Blue Splash'

Masses of white flowers splashed with marine blue to give an intriguing and unusual effect. Flowering up to 4 weeks earlier than many trailing lobelia varieties, 'Blue Splash' makes a sparkling addition to beds, containers, flower Pouches® and window-boxes. An easy to grow annual that is deservedly popular for its versatility and long flowering period. Height: 15cm (6"). Spread: 25cm (10"). More info
    • 1 packet (1000 lobelia seeds)

    • Despatch: Within 1 days
    •  
    • £1.49

Lobelia erinus 'Blue Cascade'

 Customer Rating
Freely branching plants are covered in myriads of bloom to create clouds of true blue lobelia flowers with a small white eye. Unsurpassable among trailing lobelias, 'Blue Cascade' 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. Height: 15cm (6"). Spread: 25cm (10").
More info
    • 1 packet (1500 lobelia seeds)

    • Despatch: Within 1 days
    •  
    • £2.19

Marigold 'Durango Bee' F1 Hybrid

Tagetes patula, French Marigold

A luxuriant variety with intense, rich, orange and yellow 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.

More info
    • 1 packet (40 marigold seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Gazania 'Big Kiss Yellow Flame' F1 Hybrid

Treasure Flower

A 'Big' addition to the 'Kiss' Gazania series. Possibly the largest-flowered bedding gazania from seed, the flowers of Gazania Big Kiss are 50% bigger than those of traditional varieties - each bloom is an amazing 12cm (4½in) in diameter! The vibrant yellow and red stripes of Gazania Big Kiss Yellow Flame look as though they have been individually painted. Flowers all summer in a sunny garden situation - in borders or in containers on the patio. More info
    • 1 packet (15 gazania seeds)

    • Despatch: Within 1 days
    •  
    • £3.99

Phlox drummondii 'Dwarf Beauty Mixed'

Annual Phlox

A beautiful annual which blooms throughout a long summer season. It produces large solid heads of bright rich colours on dwarf bushy plants. Admirable for filling out summer beds sowing in drifts etc, and the flowers are splendid for cutting. Autumn sown plants make fine spring flowering pot plants for the cool greenhouse. Flowers early summer to autumn. More info
    • 1 packet (200 phlox seeds)

    • Despatch: Within 1 days
    •  
    • £2.49

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.

More info
    • 1 packet (45 marigold seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Phlox drummondii 'Phlox of Sheep'

Annual Phlox

Phlox of Sheep' is a garden annual of exceptional quality and character. This totally unique and exclusive blend of pastel hues and bicolours, through pinks, yellows, apricot, red and then pure white is the result of many years work. The gorgeous different colours come together to give a plethora of flower and soft colour during the summer in bedding, borders and containers. Height: 25-30cm (10-12in).
More info
    • 1 packet (250 phlox seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Marigold 'Naughty Marietta' - RHS Garden Explorers Children's Seeds

Tagetes patula, French Marigold

I am a beautiful golden yellow flower with maroon blotches that will look very pretty at the edge of your garden. I will have tons of blooms from summer until it gets cold and frosty. You can also plant me in patio containers. Height: 25cm.Fact - Plants use sunlight to make food.

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

More info
    • 1 packet (100 marigold seeds)

    • Despatch: Within 1 days
    •  
    • £1.49