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 17 products.
 

Cosmos bipinnatus 'Sensation Mixed'

 Customer Rating

A tall, upright variety for the back of sunny borders. Cosmos 'Sensation Mixed' produces masses of daisy-like flowers above delicate ferny foliage throughout summer and autumn. The strong stems and long lasting flowers of this easy to grow annual make it perfect for cutting. This fabulous mix contains a superb range of colours including white, pink and carmine. Height: 120cm (47”). Spread: 60cm (24”).

More info
    • 1 packet (200 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.29

Cosmos bipinnatus 'Purity'

 Customer Rating
Ferny foliage and graceful pure white flowers up to 4in or more in diameter make this an effective and popular, easy annual. Flowers summer to autumn. Height 3 to 4 feet.
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.69

Nicotiana sylvestris

Tobacco Plant, Woodland Tobacco

 Customer Rating
This imposing half hardy annual has stout spikes bearing a cascading head of fragrant 3½in long white blooms. It grows to a height of 90-120cm (36-48in) making it an excellent subject for the border. Occasionally a short lived perennial in a warm sheltered site.
More info
    • 1 packet (2000 seeds)

    • Despatch: By end of June 2014
    •  
    • £2.69

Dahlia variabilis 'Pompone Mixed'

 Customer Rating

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

More info
    • 1 packet (50 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.99

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 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.99

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 seeds)

    • Despatch: By end of April 2014
    •  
    • £1.89

Cosmos bipinnatus 'Sensation Mixed' - Part of the Alan Titchmarsh Collection

 
  • Adds height to borders
  • Flowers all summer

Imposing tall ferny foliage graced by large colourful blooms all summer through to the autumn frosts. Cosmos 'Sensation Mixed' is a superb annual for adding some height to your bedding displays, or dotted into a mixed border.Height: 120cm (47”). Spread: 60cm (24”).

More info
    • 1 packet (200 seeds)

    • Despatch: By end of April 2014
    •  
    • £1.99

Cosmos bipinnatus 'Double All Sorts Mixed'

This wonderful mixture contains a full range of flower forms and colours and includes much-sought-after picotees and stripes. An easy-to-grow annual which will flower all summer and its height means that it will make a superb backdrop to your borders or a long-lasting and pretty addition to flower arrangements! Height: 100-120cm (40-48in).
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.49

Amaranthus paniculatus 'Autumn Palette'

Amaranthus cruentus, Prince's Feather

Attractive, tall, feathery spikes of cream and biscuit shades will gently ruffle in the slightest breeze. Quick and easy to grow, adding height and interest to summer displays right through to the autumn, or used as an intriguing cut flower. Height 90-120cm (36-48 inches) More info
    • 1 packet (1000 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.69

Cleome hassleriana 'Helen Campbell'

Cleome spinosa, Spider Flower

Creates a bushy screen or adds height and interest to bedding displays. Her attractive, spiralling, scented sprays of flowers are sure to entice admiring glances.
More info
    • 1 packet (50 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.39

Amaranthus caudatus 'Fat Spike'

Love-lies-bleeding, Tassel Flower

 Customer Rating
Highly attractive erect fat spikes in deep purplish red, from 3 inch thick tapering to 1 inch, as if standing guard. Ideal as a border filler, and for flower arranging. Height: 90-100cm (3-4ft)
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.99

Coreopsis x hybrida 'Incredible'

Tickseed

Coreopsis x hybrida 'Incredible' really lives up to its name with unique, never before seen colours in an annual coreopsis. This easy-to-grow mixture produces masses of flowers in a remarkable range of colours with contrasting dark centres. Tall and airy Tickseed plants are ideal grown in mixed borders where the graceful stems and delicate blooms sway in the slightest breeze. Coreopsis flowers are also superb for cutting for an indoor arrangement. Height: 120cm (47”). Spread: 45cm (18”). More info
    • 1 packet (200 seeds)

    • Despatch: By end of April 2014
    •  
    • £1.49