Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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 47 products.
 

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: Within 1 days
    •  
    • £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: Within 1 days
    •  
    • £2.19

Heliotrope 'Marine'

Heliotropium arborescens, Cherry Pie, Heliotropium peruvianum

Fragrant, royal purple, large flowered compact form with smart, deep green foliage.
More info
    • 1 packet (100 heliotrope seeds)

    • Despatch: Within 1 days
    •  
    • £2.79 £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: Within 1 days
    •  
    • £1.99

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: Within 1 days
    •  
    • £2.39

Mimosa pudica

Sensitive Plant

"Sensitive Plant", so called because the leaflets fold up in a most spectacular manner when touched or blown by the wind. Run your hand over the plant and the leaves will fold up and the leaf stalk will drop as if on a hinge. The movements are quickest with young plants in bright sunshine. They return to their normal condition in a few minutes. More info
    • 1 packet (100 mimosa seeds)

    • Despatch: Within 1 days
    •  
    • £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: Within 1 days
    •  
    • £3.39

Rudbeckia hirta 'Green Eyes'

Coneflower, Rudbeckia 'Irish Eyes', Black-eyed Susan

Unique, with pointed yellow petals and olive green eye. Well branched, good for cutting.
More info
    • 1 packet (500 rudbeckia seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

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 rudbeckia seeds)

    • Despatch: Within 1 days
    •  
    • £2.39

Nicotiana langsdorffii

Tobacco Plant, Langsdorff's Tobacco

A delightful annual from Chile and Brazil with tall branching stems and drooping sprays of apple green bells. Very exotic, yet easy to grow. Ideal for the back of the border or as a 'dot' plant among smaller bedding plants. Try growing it next to our Salvia pratensis, it looks superb. An absolute must for the flower arranger too! Height: 90-150cm (3-5ft)
More info
    • 1 packet (500 nicotiana seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Rudbeckia hirta 'Kelvedon Star'

Coneflower, Black-eyed Susan

Bright and cheerful flowers all summer long with this new introduction. The breeding techniques required to fix a pattern in flowers can be most painstaking, but invariably it achieves a striking combination that makes a wonderful garden plant and in this case the finest of cut flowers too. Masses of huge 4in flowers in bright yellow with the darkest brown centre which gives a welcome extension of colour to the late summer border. Ideal for cutting, also beds and borders. Height 75-90cm (30-36in).
More info
    • 1 packet (100 rudbeckia seeds)

    • Despatch: Within 1 days
    •  
    • £2.99 £0.99