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 102 products.
 

Snake Gourd - RHS endorsed seeds for children

Trichosanthes cucumerina

I'm a strange 'gourd' that makes an exciting plant to grow as I have fruits that look like slippery snakes! When my fruits are dried you can paint me with spots, stars, stripes or whatever you like! Height: 2m. Why Not invite your friends round and see who can paint the brightest or craziest snake?

These seeds are endorsed by the RHS.

More info
    • 1 packet (5 snake gourd seeds)

    • Despatch: by Monday
    •  
    • £1.69

Zinnia marylandica 'Double Zahara Strawberry'

Boasting an exceptionally long flowering period, we believe Zinnia 'Double Zahara Strawberry' to be the best double, dwarf Zinnia on the market. Large, fully double blooms in a vivid strawberry colour are produced in abundance on compact, low-growing plants. With good heat and drought tolerance and excellent disease resistance, these exciting annuals need little maintenance to put on a fabulous display. Height and spread: 45cm (18"). More info
    • 1 packet (12 zinnia seeds)

    • Despatch: by Monday
    •  
    • £3.99

Swan Gourd - RHS endorsed seeds for children

Lagenaria siceraria, Calabash Gourd

I'm a fun plant to grow as I have spotted fruits with a long neck that make me look like an elegant swan. When my fruits are dried you can paint me with faces or leave me looking like a swan. Height: 2m. Why Not invite your friends round to see who can paint the most beautiful or funniest animal or bird?

These seeds are endorsed by the RHS.

More info
    • 1 packet (5 swan gourd seeds)

    • Despatch: by Monday
    •  
    • £1.69

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: Add the bright coloured petals to sandwiches or salads for a light lemon taste and crisp texture. For more details about edible flowers click here.

More info
    • 1 packet (50 begonia seeds)

    • Despatch: by Monday
    •  
    • £0.99

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).

More info
    • 1 packet (40 dahlia seeds)

    • Despatch: by Monday
    •  
    • £2.99

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: by Monday
    •  
    • £0.99

Begonia x tuberhybrida 'Nonstop® Rose Petticoat' F1 Hybrid

Without doubt, a fantastic new colour to the 'Non-Stop®' series. Large,10cm (4in) eye-catching, deeply frilled, fully double blooms of white with a deep rose picotee. Height: 20-25cm (8-10in).

Culinary note: Add the bright coloured petals to sandwiches or salads for a light lemon taste and crisp texture. For more details about edible flowers click here.

More info
    • 1 packet (25 begonia seeds)

    • Despatch: by Monday
    •  
    • £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: by Monday
    •  
    • £2.29

Begonia x tuberhybrida 'Show Angels Mixed' F1 Hybrid

These exquisite begonias are the premier basket and container plant. With pendulous habit and an abundance of large, mostly fully double flowers, the selection contains some delightful picotees. They flower early, are uniform with vigour, and have good mildew resistance. Well worth the money! Height: 20-25cm (8-10in).

Culinary note: Add the bright coloured petals to sandwiches or salads for a light lemon taste and crisp texture. For more details about edible flowers click here.

More info
    • 1 packet (40 begonia seeds)

    • Despatch: by Monday
    •  
    • £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.

More info
    • 1 packet (56 dahlia seeds)

    • Despatch: by Monday
    •  
    • £0.99

Begonia 'Pink Showers'

Begonia x weltoniensis

Showers of petite, rose-pink single flowers with pretty yellow centres hang in clusters against an attractive backdrop of unusual maple-like foliage. Begonia 'Pink showers' is particularly free flowering, blooming constantly throughout summer and well into autumn. This stunning trailing begonia makes a magnificent display in containers or spilling from hanging baskets and window boxes. Height: 25cm (10"). Spread: 60cm (24"). More info
    • 1 packet (20 begonia seeds)

    • Despatch: by Monday
    •  
    • £3.49 £0.99

Dahlia variabilis 'Pompone Mixed'

 Customer Rating

Almost 100% pompon. Height: 90-120cm (3-4ft).

More info
    • 1 packet (50 dahlia seeds)

    • Despatch: by Monday
    •  
    • £2.99