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

Perennial & Biennial Seeds


Biennials live for 2 years, whereas perennials live for longer. As a general rule, biennial and perennial seeds should be sown in spring, but some can be sown in autumn as well. Many varieties will self-seed after flowering, giving you even more plants!



We have found 55 products.
 

Geranium 'World's Top Six Mix'

Pelargonium, Zonal Geranium, Zonal Pelargonium

From the worlds's top geranium breeder 6 of their finest varieties. Each is an 'eyecatcher', exquisite in colour, ultra early, beautiful in form and size of bloom, and where possible has strikingly zoned foliage. They represent the very pinnacle of achievement in the breeders art. Suitable for bedding, border, pot plants, baskets and tubs. Contains 6 separately labelled inner packets each containing 5 seeds.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £9.99

Dianthus amurensis 'Siberian Blues'

Carnation, Pink

This charming hardy perennial forms neat mounds of blue-grey evergreen foliage that contrast beautifully with the lavender blue flowers. Dianthus amurensis ‘Siberian Blue’ blooms over a long period throughout summer on resilient, dense plants with a vigorous habit. Perfect for planting in rockeries, alpine troughs and at the front of borders where it will form useful low maintenance ground cover. Height: 38cm (15"). Spread: 30cm (12").

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (100 seeds)

    • Despatch: Within 3 days
    •  
    • £0.99

Pansy 'Petite Mixed' F1 Hybrid

Viola x wittrockiana

 Customer Rating
T&M believe that this is The Best Winter Flowering Pansy! Earlier and more floriferous than many old favourites, with the widest colour spectrum imaginable. Very dwarf, compact plants, flowering over a long period in borders and containers. Height: 15-23cm (6-9in).

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (35 seeds)

    • Despatch: Within 3 days
    •  
    • £3.99

Dichondra argentea 'Silver Falls'

Silver Ponyfoot

 Customer Rating

Vigorous growth displays true cascading plants with attractive glistening silver foliage and stems. Excellent added to mixed containers or creates a stunning basket plant on its own. Height: 5-7.5cm (2-3 inches). Spread/Trailing 90-120cm (3-4 feet).

More info
    • 1 packet (10 seeds)

    • Despatch: Within 3 days
    •  
    • £3.99

Tacca chantrieri 'Nivea'

Cat's Whiskers, Devil Flower, Bat Plant

This rare white form of the ever popular Bat Plant offers shiny, dark green leaves and in 2-3 years when mature, magnificent white, green veined blooms with long tentacles. A thought- provoking plant for the home or conservatory. More info
    • 1 packet (8 seeds)

    • Despatch: Within 3 days
    •  
    • £4.99

Francoa sonchifolia 'Pink Giant'

Bridal Wreath

Reliable garden perennial with deeply lobed green leaves and spikes of large pink bicoloured petals on long flower spikes. Just as lovely in a border as in a vase.

More info
    • 1 packet (40 seeds)

    • Despatch: Within 3 days
    •  
    • £3.49

Pansy 'Padparadja' F2 Hybrid

Viola x wittrockiana

So intense is the effect of its solid orange blooms, it is unlikely there is anything to match it.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £0.99

Armeria pseudarmeria 'Ballerina Mixed'

Sea Pink, Large-flowered Thrift, Armeria maritima

This pretty mix of sea thrift produces pretty globe-shaped flowerheads in a lovely colour blend of red, lilac and white. The long lasting blooms smother neat evergreen cushions of foliage throughout summer, attracting bees and other insects to their nectar rich flowers. Armeria pseudarmeria 'Ballerina Mixed' flower in their first year, and return bigger and better each summer. Undemanding and easy to grow, these appealing little perennials are well suited to poorer soils and coastal conditions with a toughness that belies their beauty. Height and spread: 25cm (10").
More info
    • 1 packet (20 seeds)

    • Despatch: Within 3 days
    •  
    • £3.89

Pansy 'Majestic Giants Mixed' F1 Hybrid

Viola x wittrockiana

They resist both heat and cold, and are earlier flowering than other varieties in this class carrying blooms up to 10cm (4in) across in a wide and iridescent range of colours.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £3.99

Dianthus plumarius 'Sweetness Mixed'

Carnation, Pink

A true breakthrough! First year flowering from July to September from an early (February) sowing, producing heavily scented pinks. Dwarf, bushy, spreading plants; ideal for cottage or perennial borders. Easy to maintain - simply trim spent blooms with shears at the end of the season.


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.39

Cobaea (Duo)

Cup And Saucer Vine, Cathedral Bells, Cups And Saucers, Mexican Ivy

 Customer Rating

One packet each of Cobaea scandens and Cobaea scandens alba.
Cobaea scandens - A showy climber for the cool greenhouse, conservatory, and also forming a very decorative screen on trellis or south facing wall in milder areas. The large bell shaped 'cup and saucer' flowers are often 6cm (2½ in) across. Flowers late summer. Climber.
Cobaea scandens alba - A spectacular climbing plant for the summer garden or the conservatory. This very choice creamy white form of Cathedral Bells or The Cup and Saucer Plant comes from Mexico and quickly grows to cover unsightly areas or a wall outdoors, where it can be treated as a summer annual. Alternatively it may be grown in the heated conservatory or greenhouse, where it will continue to flower for many years. Flowers summer. Climbing Height 3-6 metres (10-20ft).

More info
    • 2 packets - 1 of each variety (13 seeds in total)

    • Despatch: Within 3 days
    • SAVE £1.49  
    • £5.98 £4.49