Thompson & Morgan

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Annual Plants


Annual plants fall under two categories - hardy and half-hardy. Hardy annuals can be grown outdoors and will tolerate cooler tempratures, whereas the more tender half-hardy annuals need protection and must not be planted out until all risk of frost has passed. These delightful summer flowers add colour and interest to beds, borders, containers and hanging baskets.


You might also be interested in our stunning range of perennial plants which flower every year.



We have found 91 products.
 

Lobelia 'Cascade Improved Mixed' (Garden Ready)

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants

Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.


An improved blend of Lobelia which gives a full season of stunning cascading colour. Lobelia 'Cascade Improved Mixed' includes a mixture of old varieties which flower early in the season, and new varieties which continue the display later into the summer. This long-lasting mix of trailing Lobelia makes a glittering addition to hanging baskets, containers, flower pouches™ and window-boxes where the froth of pretty flowers blend well with a variety of other bedding plants. Trails to: 45cm (18"). Spread: 15cm (6").

 

Garden ready special offer
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    • 30 lobelia garden ready plants

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    • £14.99
    • Out of stock

Begonia 'Organdy Mixed' F1 Hybrid (Garden Ready)

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants

Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.


The winning combination of bronze and green foliage contrasts beautifully with the colourful blooms. These neat little begonia semperflorens plants withstand wet or dry conditions, coping brilliantly whatever the weather. Begonia 'Organdy Mixed' is the ideal choice for low maintenance beds, borders and containers. Height and spread: 20cm (8").

 

Garden ready special offer
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    • 30 begonia garden ready plants

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    • £14.99
    • Out of stock

Petunia 'Frenzy Mixed' F1 Hybrid (Garden Ready)

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants

Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.


Our best-selling Petunia 'Frenzy Mixed' contains fantastic blend of 20 over different types of petunia flowers. The weather resistant blooms of Petunia 'Frenzy Mixed' are always dazzling come rain or shine. Perfect for filling beds, containers, baskets and window boxes with a sensational, long lasting display. Height: 25cm (10"). Spread: 30cm (12").

 

Garden ready special offer
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    • 30 petunia garden ready plants

    • Despatch:
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    • £14.99
    • Out of stock

Verbena 'Quartz Mixed' F1 Hybrid (Garden Ready)

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants
Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.

A carefully selected mix of early flowering, brightly coloured verbena with excellent mildew resistance that will guarantee a long lasting display. With a dwarf, spreading habit, Verbena 'Quartz Mixed' is invaluable for massing in beds, borders, window boxes and hanging baskets. Height: 25cm (10"). Spread: 30cm (12").

 

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    • 30 verbena garden ready plants

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    • £14.99
    • Out of stock

Petunia 'Cremissimo'

  • Fluorescent blooms following in the footsteps of two-tone Petunia 'Peach Sundae'
  • Upright plants for containers, borders and hanging baskets
  • Blooms bounce back after rainfall
Bright, brash, in your face, there's nothing shy about Petunia 'Cremissimo'! Despite the delicate look to the big trumpet blooms, this tough petunia shows great weather resistance, quickly bouncing back after heavy rain. Vibrant yellow centres bleed out to an effervescent pink for a truly unique look to your petunia planting schemes. Add summer-long colour to patio pots and bedding displays with these compact upright plants, or set them in the top tier of mixed hanging baskets. Height 25cm (10"). Spread: 40cm (16").
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    • 5 petunia Postiplug plants

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    • SAVE £2  
    • £9.99 £7.99
    • Out of stock
    • 10 petunia Postiplug plants

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    • SAVE £3  
    • £17.99 £14.99
    • Out of stock

Ageratum houstonianum 'Blue Danube' (Garden Ready)

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants
Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.

A large-flowered, vigorous variety of annual ageratum with powder-puff flower heads of soft, lavender blue. The fluffy, weather resistant blooms are particularly attractive to butterflies. With a dense, compact habit, Ageratum houstonianum 'Blue Danube' is perfect for adding texture and colour to bedding, borders and containers. Height: 20cm (8"). Spread: 25cm (10").

 

Garden ready special offer
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    • 30 ageratum garden ready plants

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    • £14.99
    • Out of stock

Petunia surfinia 'Sumo'

  • A new heavy weight contender
  • Just ONE plant fills an 18inch pot!
  • Fewer plants needed to fill large spaces
The vigour of this new petunia is second to none! Fast and vast growth from Petunia 'Surfinia Sumo' quickly piles on to fill pots or empty ground. Plant up just ONE plant per 45cm (18") pot and the plants will just swell with colour and fragrance. Set them at 60cm (24") spacing in open ground for an unbroken sea of summer colour out in your borders. Boisterous unhindered growth and perfect purple blossom makes these top-performing petunia plants an excellent choice for beginners. With less plants needed to fill pots and planting schemes, they are also the perfect choice for those with less time and money to spend on raising and tending their plants. Height: 45m (18"). Spread: 60cm (24").
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    • 5 petunia Postiplug plants

    • Despatch:
    • SAVE £2  
    • £9.99 £7.99
    • Out of stock
    • 10 petunia Postiplug plants

    • Despatch:
    • SAVE £5  
    • £14.99 £9.99
    • Out of stock

Gazania 'Tiger Stripes Mixed'

Treasure Flower

The wide daisy-like blooms of Gazania 'Tiger Stripes Mixed' sport a contrasting stripe on every petal for a really cheerful display. These undemanding and free-flowering bedding plants tolerate drought or windy coastal sites with ease. So easy to grow, and perfect for filling beds and containers with fabulous summer colour. Height and spread: 20cm (8").

 

Buy this variety in a larger plant size
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    • 6 gazania plug plants

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    • £5.99
    • Out of stock
    • 36 gazania plug plants

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    • £11.99
    • Out of stock
    • 72 gazania plug plants

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    • £23.98 £17.99
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Salvia splendens 'Blaze of Fire'

Scarlet Sage, Salvia splendens 'Fireball'

  • Works well in patio pots
Plumes of brilliant scarlet flowers above neat, compact plants make this one of the most famous and striking summer annual bedding plants. Flowering early and continuing over a long period, Salvia 'Blaze of Fire' provides excellent value and bold impact in long lasting bedding displays, window boxes and containers. Height and spread: 30cm (12").

 

Buy this variety in a larger plant size
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    • 6 salvia plug plants

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    • £5.99
    • Out of stock
    • 36 salvia plug plants

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    • £11.99
    • Out of stock
    • 72 salvia plug plants

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    • £23.98 £17.99
    • Out of stock

Marigold 'Zenith Mixed' F1 Hybrid

Tagetes patula x erecta, Afro-French Marigold

  • Does not set seed therefore increased flower power all season long!

If you're only going to grow one marigold this summer, choose Marigold 'Zenith Mixed'! An Afro-French hybrid, Marigold 'Zenith Mixed' produces crested, carnation-like flowers in a mixture of colours including reds, oranges, yellows and bicolour shades. With a vigorous growth habit and superb weather resistance you'll be enjoying non-stop colour in your beds, borders and containers from summer through to autumn. Height and spread: 35cm (14").


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.

 

Buy this variety in a larger plant size
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    • 72 marigold plug plants

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    • £19.98 £14.99
    • Out of stock

Ageratum houstonianum 'Blue Danube'

Floss Flower

  • Classic bedding annual
A large-flowered, vigorous variety of annual ageratum with powder-puff flower heads of soft, lavender blue. The fluffy, weather resistant blooms are particularly attractive to butterflies. With a dense, compact habit, Ageratum houstonianum 'Blue Danube' is perfect for adding texture and colour to bedding, borders and containers. Height: 20cm (8"). Spread: 25cm (10").

 

Buy this variety in a larger plant size
More info
    • 36 ageratum plug plants

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    • £12.99
    • Out of stock
    • 72 ageratum plug plants

    • Despatch:
    • SAVE *£7.99  
    • £25.98 £17.99
    • Out of stock
    • 140 ageratum miniplug plants

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    • £19.99
    • Out of stock
    • 280 ageratum miniplug plants

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    • SAVE *£9.99  
    • £39.98 £29.99
    • Out of stock

Laurentia 'Indigo Stars'

Isotoma, Solenopsis axillaris

 Customer Rating
A constellation of starry indigo blooms sits above the airy linear foliage of this neat, compact variety. Laurentia plants are resilient and versatile, even coping well in dry conditions. The gently scented flowers of Isotoma 'Indigo Stars' flower over a particularly long period - perfect for filling containers, beds and borders with long lasting colour! Height: 30cm (12"). Spread: 35cm (14").

Useful links:

Read Michael Perry's blog: Make a change to your plant choices - 3

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    • 36 laurentia plug plants

    • Despatch:
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    • £12.99
    • Out of stock
    • 72 laurentia plug plants

    • Despatch:
    • SAVE *£7.99  
    • £25.98 £17.99
    • Out of stock