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 38 products.
 

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

Gazania 'Big Kiss White 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 white and rose striped petals of Gazania Big Kiss White Flame are simply stunning. Flowers all summer in a sunny garden situation - in borders or in containers on the patio. More info
    • 1 packet (15 gazania seeds)

    • Despatch: by Monday
    •  
    • £3.99 £0.99

Petunia grandiflora 'Double Cascade Burgundy Plum Vein' F1 Hybrid

Giant, fully double flowers of burgundy or plum veined, often more than 10cm (4in) across! Add to this its cascading habit and you have one of the very best basket and container plants creating a waterfall of pleated powderpuffs all summer long. 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.Click here to buy now. More info
    • 1 packet (25 petunia seeds)

    • Despatch: by Monday
    •  
    • £3.49

Cosmos bipinnatus 'Pied Piper Red'

The only separate colour available in the Sea Shells type, with fluted, shell-like petals of velvet crimson-red. The ferny foliage helps to make this a wonderful cut flower as well as a good back of border plant.
More info
    • 1 packet (100 cosmos 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

Petunia x hybrida 'Diamond Pearly Shades' F1 Hybrid

Petunia x hybrida 'Diamond Pearly Shades' is the first large-flowered, trailing petunia from seed. With outstanding garden performance and exceptional weather resistance, this pearly pink stunner will outperform more expensive, cutting-raised surfinia petunias. Enjoy masses of 8cm (4") diameter blooms on long stems that look fabulous in baskets and containers or spreading through beds and borders as ground cover. Height: 20cm (8"). Spread: 80cm (31"). More info
    • 1 packet (12 petunia 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

Nicotiana mutabilis 'Marshmallow'

Tobacco Plant

 Customer Rating

Reintroduced following increasing interest by garden designers and visitors to our Open Days. Nicotiana Marshmallow is a very unusual and visually stunning variety which will add stature and fragrance to your summer borders. Above basal rossettes of large leaves, are formed masses of wiry stems are covered with a 'haze' of small blooms, each one fading through red, pink and white to give the effect of three flower colours on each plant.

More info
    • 1 packet (100 nicotiana seeds)

    • Despatch: by Monday
    •  
    • £2.29

Nicotiana x hybrida 'Whisper Mixed' F1 Hybrid

Tobacco Plant

A 'must-have' border plant, especially when you want to fill a space quickly. Elegant upright flower stems tower above large basal rosettes of leaves, bearing petite flowers that fade from red to pink to white, giving the effect of three colours on each plant. The evening fragrance of British bred Nicotiana 'Whisper Mixed' only adds to its irresistible charm. An elegant annual that is most effective when planted in large drifts throughout beds and borders. Height: 100cm (39"). Spread: 45cm (18"). More info
    • 1 packet (70 nicotiana seeds)

    • Despatch: by Monday
    •  
    • £2.69

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: by Monday
    •  
    • £0.99

Gazania 'Kiss Rose' F1 Hybrid

Treasure Flower

Very early and free flowering even in dull, cool weather. Naturally compact, strong basal branches, ensuring multiflowering plants. Ideal for borders, and containers. More info
    • 1 packet (20 gazania seeds)

    • Despatch: by Monday
    •  
    • £3.69 £0.99

Petunia x hybrida 'Sophistica Antique Shades' F1 Hybrid

Extremely pretty petunia with large ruffled blooms, each one seemingly hand-painted in lovely shades of soft pink and blushed cream not previously seen in petunias. Suitable for pots or baskets, making a stunning patio feature where it will flower freely all summer.

More info
    • 1 packet (12 petunia seeds)

    • Despatch: by Monday
    •  
    • £0.99