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 25 products.
 

Lobelia erinus 'Blue Wings'

On T&M's trials we believe we have found the largest flowered bedding lobelia available. Exceptionally abundant cobalt blue flowers cover compact mounds of foliage. With superb weather resistance Lobelia 'Blue Wings' 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: 20cm (8"'). More info
    • 1 packet (1000 lobelia seeds)

    • Despatch: Within 1 days
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    • £0.99

Lobelia pendula 'Monsoon'

  • Attractive late summer bronze foliage
If you liked Lobelia 'Crystal Palace' then this trailing version is sure to appeal. With a vigorous cascading habit and masses of deep blue flowers, Lobelia 'Monsoon' is ideal for filling baskets and containers or spilling over low walls and rockeries. The bright green summer foliage matures to a rich shade of bronze as the autumn approaches for a spectacular late summer display. Height: 15cm (6"). Spread: 30cm (12").
More info
    • 1 packet (650 lobelia seeds)

    • Despatch: Within 1 days
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    • £2.29

Salvia farinacea 'Fairy Queen'

Mealy Sage, Mealycup Sage

Unique breeding has brought us this very visually appealing Salvia. Bushy, compact plants bear multiple spikes of attractive blue and white bicoloured flowers on distinctive dark stems. Flowers all summer and continues through to October in borders or containers. Height: 35-45cm (14-18in).
More info
    • 1 packet (40 salvia seeds)

    • Despatch: Within 1 days
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    • £0.99

Morning Glory 'Carnevale di Venezia'

Ipomoea purpurea, Convolvulus purpureus, Pharbitis purpurea

A vigorous climber producing masses of spectacular, striped blue and pink blooms with intricate markings, as if painted individually. Flowers all summer, transforming your garden with all the dazzling colours of the Venice Carnival. Twining climber to 2m (6ft). More info
    • 1 packet (35 morning glory seeds)

    • Despatch: Within 1 days
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    • £0.99

Nemesia strumosa 'KLM'

Cape Jewels

The top petals are rich blue in clear contrast to the lower petals' creamy whiteness. Lots of flowers, smaller than the large flowered strains, even in height 25cm (10in) and with universal appeal. Named after the Dutch airway KLM whose company colours are blue and white. An excellent companion to our red and white Nemesia Mello. Use it in beds, borders etc, to brighten up the garden or in tubs, planters, on the patio or even as a windowsill pot plant. Flowers summer. Height 25cm (10in.)

More info
    • 1 packet (400 nemesia seeds)

    • Despatch: Within 1 days
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    • £0.99

Laurentia 'Avant-Garde Blue' F1 Hybrid

Isotoma, Solenopsis axillaris

T&M's flower breeders have struck gold with the first ever F1 Hybrid Laurentia to be entered into the Fleuroselect trials. Both 'Avant-Garde Blue' and 'Pink' have the same uniform, vigorous plant habit and have earlier scented, star shaped blooms which are produced in abundance over a long flowering season. Your garden will be filled with colour all summer. Height: 25-30cm (10-12in).
More info
    • 1 packet (50 laurentia seeds)

    • Despatch: Within 1 days
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    • £2.99

Morning Glory 'Flying Saucers'

Ipomoea tricolor, Ipomoea rubrocaerulea

A free-flowering vigorous climber for quickly covering trelliswork, obelisks and fences. In summer, an abundance of exquisite white blooms with blue-mauve streaks are produced, their antique appearance giving an air of yesteryear. Climbs to 180-240cm (6-8ft). More info
    • 1 packet (35 morning glory seeds)

    • Despatch: Within 1 days
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    • £0.99

Salvia farinacea 'Seascape Mixed'

Mealy Sage, Mealycup Sage

A relaxing blend of three varieties of salvia with stunning flower spires in shades of blue with silver. These compact, branching and early flowering salvias will add a wonderful new dimension to bedding displays as they sway in the slightest breeze creating a truly tranquil border feature.

More info
    • 1 packet (50 salvia seeds)

    • Despatch: Within 1 days
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    • £1.99

Morning Glory 'Heavenly Blue'

Ipomoea tricolor, Ipomoea rubrocaerulea

 Customer Rating
Gorgeous sky blue flowers, up to 6cm (2½in) across that open in the morning, appear throughout summer on this free-flowering, elegant climber. Also suitable for greenhouse or conservatory growing. Prefers a sunny, sheltered, warm site; Beautiful climber ideal for warm site trellis, fences, poles, etc.
More info
    • 1 packet (50 morning glory seeds)

    • Despatch: Within 1 days
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    • £2.69

Butterfly Pea

Clitoria ternatea, Blue Pea

A fast-growing tropical climber producing a wonderful display of 5cm (2in) blue flowers from mid to late summer. Ideal for covering trellis in a sheltered part of the garden where it will attract bees and butterflies, or as a perennial grown in a conservatory. Climbs 1.8m-2.4m (6-8 feet). More info
    • 1 packet (20 seeds)

    • Despatch: Within 1 days
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    • £2.99

Petunia grandiflora 'Double Cascade Blue' F1 Hybrid

Attractive, large fully double blooms in the deepest velvety blue, almost look black when shimmering in the sunshine. The flowers have an added bonus of quickly recovering after a shower of rain. Their cascading habit makes them ideal as groundcover or tumbling over the sides of containers or baskets. Height: 23-30cm (9-12in) 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 (30 petunia seeds)

    • Despatch: Within 1 days
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    • £3.49

Morning Glory 'Hazelwood Blues'

Ipomoea

The stunning colour mixture of Ipomoea Hazelwood Blues brings together some of the most attractive shades of blue available in Morning Glories. This is a truly vigorous annual climber, ideal for covering fences, trellis or an ornamental garden arch. Ipomoea Hazelwood Blues will also look spectacular planted in a large container and then trained up and through an obelisk to create a wonderful patio feature. More info
    • 1 packet (35 morning glory seeds)

    • Despatch: Within 1 days
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    • £2.29