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 21 products.
 

Marigold 'Crackerjack Mixed'

Tagetes erecta, African Marigold

Big, bold double flowers in orange, gold and lemon borne well above the foliage. A very early and free flowering strain Flowers summer. Height 24in.

More info
    • 1 packet (250 marigold seeds)

    • Despatch: By end of August 2016
    •  
    • £1.99

Cosmos bipinnatus 'Xanthos'

  • A totally new cosmos that's already causing a big stir!
  • Unique cosmos colour
  • Compact and early flowering
  • Garden performance guaranteed

Unique soft-yellow blooms are produced in profusion on compact dwarf plants, bringing real impact to patio containers, beds and borders. This early flowering cosmos will start to bloom in as little as 70 days from sowing, going on to offer to six months of colour from May to October - keep on top of the deadheading and new flowers will just keep coming!



Use the classy blooms en masse for an elegant feel to your displays, if not, set them in combination with other annuals to complement pastel shades or calm hot colours. The stand-out flowers also make a great underplanting to shrubs and hedging. These compact cosmos plants are the perfect option for exposed gardens where taller varieties would be blown about by the wind. Height: 60cm (24"). Spread: 40cm (16").
More info
    • 1 packet (30 cosmos seeds)

    • Despatch: By end of August 2016
    •  
    • £3.69
    • 2 packets (60 cosmos seeds)

    • Despatch: By end of August 2016
    •  
    • £4.49

Dahlia variabilis 'Collarette Dandy'

 Customer Rating
Dwarf bushy dahlias with delightful "collarette" form, in many shades of red, yellow, orange and white all with white matching or contrasting inner collar of quilled petals. Height: 50-60cm (20-24in).
More info
    • 1 packet (55 dahlia seeds)

    • Despatch: By end of August 2016
    •  
    • £2.99 £0.99

Amaranthus tricolor 'Joseph's Coat'

Chinese Spinach, Tampala, Callaloo

An improved form with yellow-scarlet and green foliage all on one plant, it makes a striking bedding plant for its foliage alone and produces erect brush like deep red 6in flower spikes which are good for cutting. Also suitable for growing in 5-6in pots. Flowers late summer. Height: 45-60cm (18-24in). More info
    • 1 packet (100 amaranthus seeds)

    • Despatch: By end of August 2016
    •  
    • £3.49

Zinnia 'Red Spider'

Zinnia tenuifolia

This dazzling Zinnia is sure to attract some admiring glances, as it tip toes suggestively though beds and borders. Exquisite neat and compact plants with masses of rich, scarlet flowers, with scalloped petals of the most alluring, spider like appearance. A sunny position brings to life this magical colour, which is a striking complement to any bedding display. Height: 60-75cm (24-30in). More info
    • 1 packet (50 zinnia seeds)

    • Despatch: By end of August 2016
    •  
    • £2.99 £0.99

Aster 'Spider Chrysanthemum Mixed'

Callistephus chinensis, China Aster

An exclusive blend of Asters, with stunning blooms resembling a Spider Chrysanthemum in a dazzling mixture of colours. Excellent planted en masse in borders or used as a cut flower. More info
    • 1 packet (200 aster seeds)

    • Despatch: By end of August 2016
    •  
    • £2.99

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 cosmos seeds)

    • Despatch: By end of August 2016
    •  
    • £2.99

Zinnia elegans 'Pop Art Golden & Red'

  • Fleuroselect Approved Novelty
This magnificent variety is a worthy winner of its Fleuroselect Novelty award. The large golden blooms, carried on tall stems, are flecked and splashed with intricate red markings, making each bloom completely unique. These long lasting zinnia flowers are particularly attractive to butterflies and make a superb cut flower too. Zinnia elegans 'Pop Art Golden & Red' is perfect for creating an eye catching splash of colour in beds and borders. Height: 60cm (24"). Spread: 30cm (12").
More info
    • 1 packet (40 zinnia seeds)

    • Despatch: By end of August 2016
    •  
    • £1.49

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 cosmos seeds)

    • Despatch: By end of August 2016
    •  
    • £2.99

Antirrhinum majus 'Lucky Lips'

Antirrhinum majus, Snapdragon

Fantastic, easy to grow Snapdragon for beds and borders. Get the vintage look in your garden with this handsome Snapdragon. Plants are really easy to grow, performing strongly in sunny borders as well as shady spots. The spikes of softly fragrant blooms are two-tone, long-lasting and make a great cut flower option. Height: 60cm (24"). Spread 40cm (16"). More info
    • 1 packet (200 antirrhinum seeds)

    • Despatch: By end of August 2016
    •  
    • £0.99

Marigold 'Pots of Gold'

Tagetes patula, French Marigold

An exclusive blend of French marigolds, including three fiery colours - golden, striped and a fabulous vibrant red. Bushy plants produce masses of single flowers atop tall sturdy stems which have a uniform height, making them perfect for cutting. Attractive to bees and butterflies, Marigold 'Pots of Gold' makes an eye-catching addition to the middle of beds, borders and containers for a colourful and long-lasting summer display. Height: 60cm (24"). Spread: 45cm (18").

 

Culinary note: French Marigold flowers are edible.

Culinary note: The citrus tasting flowers have many uses, try them in salads, sandwiches or seafood dishes too. For more details about edible flowers click here.

More info
    • 1 packet (100 marigold seeds)

    • Despatch: By end of August 2016
    •  
    • £1.99

Cosmos bipinnatus 'Sonata Series Mixed'

An award winning 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 cosmos seeds)

    • Despatch: By end of August 2016
    •  
    • £2.99