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 129 products.
 
Zinnia Elegans Giant Double Mixed

Zinnia elegans 'Giant Double Mixed'

Large double flowers and long rigid stems which make them ideal for cutting. The symmetrical form of each flower makes it a thing of beauty in itself. A good blend of the best colours with giant 11cm (4½in) blooms . More info
    • 1 packet (60 seeds)

    • Despatch: Within 2 Days
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    • £2.19
Dahlia Variabilis Collarette Dandy

Dahlia variabilis 'Collarette Dandy'

Dwarf bushy dahlias with delightful "collarette" form, in many shades of red, yellow, orange and white all with white matching or contrasting inner collar of quilled petals. Height: 50-60cm (20-24in). More info
    • 1 packet (55 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Dahlia Coccinea Species Mixed

Dahlia coccinea 'Species Mixed'

A vibrant mixture of delicate single flowers in several colours with many bicolour shades, Tall and free flowering, makes it ideal for adding height to bedding displays or filling gaps in perennial borders. Height 5 feet. Planting distance 27 inches.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
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    • £0.69
Nicotiana X Sanderae Eau De Cologne Mixed F1 Hybrid

Nicotiana x sanderae 'Eau de Cologne Mixed' F1 Hybrid

Tobacco Plant

 A specially selected blend, offering uniform, mid height plants, in a glowing colour range with upward facing blooms. The evening fragrance adds to their irresistible charm and elegance and is guaranteed to enhance your borders. More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Rudbeckia Hirta Rustic Dwarfs Mixed

Rudbeckia hirta 'Rustic Dwarfs Mixed'

Coneflower, Black-eyed Susan
 Customer Rating
Long-stemmed plants with large flowers of rich yellow, gold, bronze and mahogany with black cone. An excellent subject for beds and borders, it will tolerate wet weather. Flowers late summer/autumn. Height only 60cm (24in). More info
    • 1 packet (350 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Childrens - Snake Gourd

Gourd 'Snakes'

Trichosanthes cucumerina

 Grow your own slippery snake! Unusual pale green narrow gourds that twist and curl, then, once dried, can be painted with your personalised snake pattern. NOT EDIBLE - Use acrylic paints to create your own designs. More info
    • 1 packet (5 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Zinnia Marylandica Zahara Starlight Rose

Zinnia marylandica 'Zahara Starlight Rose'

Truly spectacular 2010 AAS award-winning bedding plant! The pretty white flowers with an attractive pinky-rose centre are 6cm (2.5in) across when fully open. Bushy, dwarf plants flower freely and are so tolerant of such conditions as heat, humidity and drought that they were planted extensively in floral displays at the Beijing Olympics.

Non-stop-flowering Zinnia Zahara Starlight Rose follows on from the success of Zahara Yellow and will similarly attract beneficial insects, such as butterflies, to the garden. A real ‘must’ for borders this season!

 More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Ageratum Houstonianum 'Blue Mink'

Ageratum houstonianum 'Blue Mink'

Floss Flower
 Customer Rating
This relatively old variety of flossflower remains popular for good reason. The compact, uniform plants bear large, fluffy, powder-blue flowers. With a vigorous, open habit, Ageratum houstonianum ‘Blue Mink’ is perfect for adding texture and colour to bedding, borders and containers. Try growing ageratum in wildlife gardens where they will attract butterflies to their blooms. Height: 30cm (12”). Spread: 30cm (12”). More info
    • 1 packet (1500 seeds)

    • Despatch: Within 2 Days
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    • £1.99
Aster Chinensis Florette Champagne

Aster 'Florette Champagne'

Callistephus chinensis, China Aster

 A superb aster which makes a fine display in the border and is wonderful for cutting. The extra double large quilled flowers of soft creamy pink are borne on thick, strong stems. Robust in growth and free flowering. Height 50-60cm (20-24in). Flowers summer. More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Begonia X Tuberhybrida Royal Picotee F1

Begonia x tuberhybrida 'Royal Picotee' F1 Hybrid

Distinctive large flowers of apricot to cream with red picotee. Use alone in baskets and containers. Height: 20-30cm (8-12in).

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

 More info
    • 1 packet (40 seeds)

    • Despatch:
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    • £1.49
    • Out of stock

Lobelia erinus 'Mrs Clibran Improved'

Very useful for edging. Deep-blue flowers with a pretty, contrasting white eye. More info
    • 1 packet (2000 seeds)

    • Despatch: Within 2 Days
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    • £2.09
Phlox drummondii 'Moody Blues'

Phlox drummondii 'Moody Blues'

Annual Phlox

 Free flowering in a beautiful range of attractive blue shades, this easy to grow, half hardy annual is a cottage garden classic. Phlox drummondii 'Moody Blues' has a compact bushy habit that makes it ideal for planting in loose drifts at the edge of borders, and performs equally well in containers. Annual Phlox also makes a delightful cut flower so you can enjoy it in your home too! Height: 25cm (10”). Spread: 30cm (12”). More info
    • 1 packet (175 seeds)

    • Despatch: Within 2 Days
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    • £1.99