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 13 products.
 
Cosmos Bipinnatus Gazebo Mixed

Cosmos bipinnatus 'Gazebo Mixed'

 Customer Rating
A mid-height, easy to grow annual with well branched plants which come into flower earlier than most varieties. The attractive fern-like foliage is crowned with many large blooms of velvet red, rose-pink and pure white. An ideal border filler, or simply use in a large container or as a bedding plant. Flowers summer. Height: 60cm (24in). More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Dahlia variabilis 'Starlight Mixed' - Part of the Alan Titchmarsh Collection

Dahlia variabilis 'Starlight Mixed' - Part of the Alan Titchmarsh Collection

 
  • NEW in 2013
Dahlia 'Starlight Mixed' produces fabulous, windswept blooms in every colour of the rainbow. A nice, distinct dahlia for bedding or for planting in big groups in patio pots. Height and spread: 40cm (16"). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £1.99
Rudbeckia Hirta Cappuccino

Rudbeckia hirta 'Cappuccino'

Coneflower, Black-eyed Susan
 Customer Rating

For a fabulous focal point in borders, plant this dazzling rudbeckia! Large 15cm (6in) diameter blooms in bright shades of rusty gold with contrasting darker centres will bloom all summer long. Vigorous, well-branched and heat tolerant plants will produce stunning semi-tall flowers which are perfect for cutting.

 More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £1.99
Cosmos Bipinnatus Sonata Series Mixed

Cosmos bipinnatus 'Sonata Series Mixed'

An RHS AGM variety in a superb mixture of colours. This beautiful dwarf Cosmos reaches a maximum height of 60cm (24”) making it perfectly proportioned for sunny borders and containers. The 8cm (3”) wide, daisy-like blooms of Cosmos ‘Sonata Series Mixed’ float above the finest lacy foliage. Strong stems and a long vase life make this compact annual ideal for cutting for a colourful bouquet. Cosmos ‘Sonata Series Mixed' is particularly useful for exposed positions. Height: Up to 60cm (24”). Spread: 45cm (18”). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Cosmos Bipinnatus Pied Piper Red

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 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Cosmos Sulphureus Polidor

Cosmos sulphureus 'Polidor'

 Customer Rating

A bright, striking mixture of orange, lemon and red shades. The semi-double flowers, of medium size, are borne on bushy plants of fresh, fern-like foliage. Earlier to bloom than many other Cosmos.

 More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Cosmos Bipinnatus Sonata Series White

Cosmos bipinnatus 'Sonata Series White'

A Fleuroselect Award Winning variety with purest white blooms. This beautiful dwarf Cosmos reaches a maximum height of 60cm (24”) making it perfectly proportioned for sunny borders and containers. The 8cm (3”) wide, daisy-like blooms of Cosmos ‘Sonata Series White’ float above the finest lacy foliage. Strong stems and a long vase life make this compact annual ideal for cutting for an elegant bouquet. Cosmos ‘Sonata Series White' is particularly useful for exposed positions. Height: Up to 60cm (24”). Spread: 45cm (18”). More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.69
Cosmos Antiquity

Cosmos bipinnatus 'Antiquity'

A completely unique colour in Cosmos. Flowers are rich burgundy on opening and change to an antique bronze-salmon when ageing creating an attractive, two-toned effect. Very early flowering and floriferous all summer. Excellent for borders or containers. More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Heliotropium Dwarf Marine

Heliotrope 'Dwarf Marine'

Heliotropium, Cherry Pie, Heliotropium peruvianum

 Once you've experienced the sweet, pungent scent, coming from Heliotrope, or 'cherry pie' as it is commonly called, on a still summer evening you won't want to be without it. Few plants can fill the air with such a heady fragrance as this. Marine is a royal purple, large flowered yet compact form with attractive, dark green foliage and bushy habit. Excellent for beds, borders and as a summer flowering pot plant. Flowers summer. Height 45cm (18in). More info
    • 1 packet (150 seeds)

    • Despatch: Within 2 Days
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    • £2.89
Salvia Farinacea Victoria

Salvia farinacea 'Victoria'

Mealy Sage, Mealycup Sage
Tall, handsome spiky plants which add a touch of elegance to a bed or border. The flower spikes are produced over a long period and are excellent for cutting. A Fleuroselect Bronze Medal Winner. Flowers summer/autumn. Height 18in. More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Salvia Farinacea Fairy Queen

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 seeds)

    • Despatch: Within 2 Days
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    • £2.19
Salvia Farinacea Strata

Salvia farinacea 'Strata'

Mealy Sage, Mealycup Sage
From uniform and compact plants rise silvery erect stems bearing many silver-green calyx, from which a firework of small clear blue flowers emerge. Height: 35-45cm (14-18in). More info
    • 1 packet (80 seeds)

    • Despatch: Within 2 Days
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    • £1.49