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Home > 'Giant Plants'

'Giant Plants'

58 products, 66 blogs

Giant Geranium Collection

Enormous heads of bloom with exceptional weather resistance make these giant geraniums stand out from the rest! Raised from cuttings, these plants have increased vigour and abundant flowers that persist throughout summer if deadheaded regularly. Fantastic…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

4 Options From£9.99

despatch by end of april 2018

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Poppy 'Supreme'

Here?s a poppy that will reign supreme in borders all summer! This is another fabulous variety from Thompson & Morgan?s own breeding. Poppy ?Supreme? boasts spectacular fully double flowers which are three times larger than those of other similar papaver rhoeas…  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Annual

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Campanula pyramidalis (Mixed)

One of the most striking perennials for the border or patio containers. Giant, slender spikes of blooms reach skywards, in shades of blue and white. Plant in containers either side of your front door for a colourful box or bay tree substitute!  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

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Gunnera manicata

Gunnera is the ?big daddy? of the gardening world, and best suited to a large space where it can grow to its full potential. The giant, umbrella-like foliage can reach over 1m across metres across, and will add a real ?wow? factor to the garden! Throughout summer…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Red
  • Longevity: Perennial

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Delphinium 'Pacific Giants Mixed'

This highly distinguished Delphinium produces strong spikes of semi-double blooms which flower in a blend of pink, lilac, purple, violet-blue, sky-blue and white colours. Delphinium 'Pacific Giants' lives up to its name as the tall stems bearing impressive…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

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despatch by end of march 2018

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Onion 'Stuttgarter Giant' (Spring Planting)

Spring plantingAn ever popular variety producing firm, semi-flat bulbs with an excellent flavour. Onion 'Stuttgarter Giant' performed well in commercial assessments against 'Red Baron'. Height: 45cm (18). Spread: 15cm (6)  More Info

  • Sun shade: Full sun
  • Grows in: Vegetable Plot

  • Longevity: Bulb

2 Options From£3.99

despatch by end of february 2018

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Rhubarb 'Giant Grooveless Crimson' (Spring/Autumn Planting)

This compact rhubarb produces a bountiful supply of tall, uniform, fully coloured, bright red stems. Rhubarb 'Giant Grooveless Crimson' has a flavour that is less acidic than many cultivars making it perfect for delicious crumbles and jams. Height: 60cm (24).…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Cream
  • Longevity: Perennial

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Giant Patio Fuchsia 'Swingtime'

Large, double white frilled skirts that contrast beautifully with bold red sepals. Fill your hanging baskets, window boxes, Flower Pouches® and containers with this kaleidoscope of colourful trailing fuchsias. An abundance of vibrant, double blooms are borne on…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Beds
  • Flower Colour: Pink
  • Longevity: Perennial

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despatch by end of march 2018

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Sunflower 'Russian Giant'

A giant among annuals. Give them plenty of room and you will be rewarded with plants up to 3m (10ft) tall with huge yellow flowers often 30cm(12in) in diameter. Useful to grow against an unsightly shed or fence. Birds love the seeds so grow a few plants…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Annual

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Stock 'Giant Perfection Mixed'

Invaluable summer bedding plants with dense showy spikes of sweet scented flowers. Justifiably popular for beds, borders, cut flowers and they also make magnificent plants for winter flowering in the cold greenhouse.  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Annual

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Nepeta 'Six Hills Giant'

The ever popular Nepeta 'Six Hills Giant' is one of the most commonly grown Catmints. The lilac-blue lavender-like flower spikes rise above the silvery-green foliage from early summer onwards, giving a delightful summer display, that is ideal for softening…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

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despatch by end of february 2018

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Hibiscus syriacus 'Pink Giant'

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Shrub

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despatch within 3 working days

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Sunflower 'Russian Giant'

I could be the tallest flower in your garden. Can you grow the tallest, sunniest sunflower? When I have finished flowering leave the flowerheads out to feed the birds over the winter. Height: 2m+Did You Know? - Not all sunflowers are yellow or tall. Look for furry…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Annual

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Hydrangea arborescens 'Giant Incrediball'

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: White
  • Longevity: Shrub

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despatch within 3 working days

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Sunflower 'Russian Giant' (Start-A-Garden™ Range)

Easy to grow and a giant in sunflowers. Grows up to 3m (10ft) tall if given plenty of room and boasts eye-catching, huge yellow flowers up to 30cm (12in) in diameter. Excellent for the back of borders, ideal for children to grow and birds love the seeds and will…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Annual

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Onion 'Ailsa Craig' (Giant/Show Vegetable)

A splendid exhibition variety of golden merit producing large globe shaped onions with a rich, golden straw coloured skin. As well as being a super show variety, Onion Ailsa Craig is also one of the best varieties for general cultivation producing large onions with an…  More Info

  • Sun shade: Full sun
  • Grows in: Vegetable Plot
  • Flower Colour: White
  • Longevity: Annual

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Shallot 'Golden Gourmet' (Spring planting)

Spring planting. This is a major advance on the traditional variety 'Giant Yellow'. RHS AGM variety Shallot 'Golden Gourmet' produces larger and better quality bulbs with reduced bolting incidence. The lovely golden brown skinned bulbs store well…  More Info

  • Sun shade: Full sun
  • Grows in: Vegetable Plot

  • Longevity: Bulb

Just£5.99

despatch by end of february 2018

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Rhubarb RHS Collection (Spring/Autumn Planting)

Thompson & Morgan have teamed up with the RHS to offer the first AGM cultivars from its 112 plant National Collection of Rhubarbs. These young plants will quickly mature, resulting in crowns big enough to harvest from 2 years after planting.  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Cream
  • Longevity: Perennial

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Arundo donax 'Variegata'

Arundo donax 'Variegata' is a half-hardy perennial grass with variegated, green foliage and wide, pale margins. The Giant Reed's exotic, upright stems stretch to an impressive 1.8m (5'11) when fully grown, making it a dramatic addition to patio containers, well…  More Info

  • Sun shade: Full sun
  • Grows in: Borders

  • Longevity: Perennial

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Gazania 'Frosty Kiss Mixed'

The silvery sheen of this fantastic mix is incredibly drought resistant, and with GIANT blooms that stay open whatever the weather, it just cannot be beaten! Perfect for filling beds and containers.  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Annual

2 Options From£7.99

despatch by end of april 2018

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Fuchsia 'White King'

Of all the giant double fuchsias, this is the purest white of all. The huge 12cm (5in) blooms make the perfect basket addition for brightening shady spots where they seemingly glow in the dark.  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Containers
  • Flower Colour: White
  • Longevity: Perennial

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despatch by end of march 2018

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Marigold 'Colossus'

Giant heads, larger than a golf-ball, in rich bicolour shades of red and orange make this French Marigold one of the largest, and a striking feature for beds and borders. A premier bedding plant, easily grown to give non-stop summer.  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Red
  • Longevity: Annual

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Dianthus 'Romance'

The large flowers of Galanthus elwesii are up 25mm long with a delicate honey fragrance. This giant snowdrop holds an RHS AGM and makes an outstanding display in spring borders and containers. Height: 30cm (12). Spread: 10cm (4).Bulb size 4/5.  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Pink
  • Longevity: Perennial

Just£9.99

despatch by end of april 2018

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Begonia x tuberhybrida 'Daffadowndilly'

The daffodil begonia was almost lost to cultivation, but we've worked with breeders to bring an old-time classic back to UK gardens. This vintage begonia variety has been re-worked to offer stunning giant daffodil-like blooms in shades of salmon pink for a fresh…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Containers
  • Flower Colour: Pink
  • Longevity: Tuber

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Radish 'Vienna' F1 Hybrid

A giant amongst summer radish. Radish Vienna produces large, golf ball sized roots with pure white flesh which remain firm, juicy and crisp with a spicy flavour, but have no sign of pithiness or bitter after taste. Ideal for successional sowing.  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Containers

  • Longevity: Annual

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Cabbage 'Brigadier' F1 Hybrid (Autumn/Winter)

(Autumn/Winter). Ideal to grow a quality giant cabbage, producing heads up to 65kg (14lbs). Cabbage Brigadier F1 Hybrid is delicious eaten raw, with a high sugar and Vitamin C content, but also excellent when cooked, Stands well in good condition, with Fusarium…  More Info

  • Sun shade: Full sun
  • Grows in: Vegetable Plot

  • Longevity: Annual

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Caltha palustris subsp. polypetala (Marginal Aquatic)

  • Sun shade: Sun or semi shade
  • Grows in: Ponds
  • Flower Colour: Yellow
  • Longevity: Perennial

Just£24.99

despatch by end of april 2018

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Vitex agnus-castus f. latifolia

If you are a fan of Lavender as a garden border plant, you will love Vitex agnus-castus f. latifolia a spectacular deciduous shrub. From a distance it almost looks like a giant Lavender! In early autumn it becomes full of sprays of purple-blue, scented…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Purple
  • Longevity: Shrub

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Buddleja davidii 'White Profusion'

Buddleja davidii 'White Profusion' produces giant panicles packed with tiny white blooms that swathe the end of each stem between July and September. This classic deciduous Butterfly Bush holds an RHS AGM and is perhaps more elegant than some of the bigger…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: White
  • Longevity: Shrub

2 Options From£14.99

despatch by end of july 2018

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Tomato 'Gigantomo'® F1 Hybrid

This collossal new beefsteak tomato is the largest new variety on the market. Gigantomo® marries the much-loved flavour of hertiage varieties with the inbuilt vigour and disease-resistance of modern cultivars, making it the must-have tomato of 2015. Plants are…  More Info

  • Sun shade: Full sun
  • Grows in: Containers
  • Flower Colour: Yellow
  • Longevity: Annual

4 Options From£7.99

despatch by end of may 2018

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Gunnera magellanica

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Red
  • Longevity: Perennial

Just£14.99

despatch by end of april 2018

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Wildflower Mix

Create a beautiful wildflower area in your garden with this selection of bright and colourful annuals. Our special selection provides forage over a long season, from spring through to early autumn, making it an invaluable food source for bees and butterflies. Collection…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Annual

Just£10.85

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Tree Lily® 'Pretty Woman'

This large, white flowered lily is an impressive variety which will multiply and become a true 'tree lily' reaching heights of around 6ft within a few years. Shoots are sturdy and require minimal support. Plant in a container and place on the patio to enjoy its…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: White
  • Longevity: Bulb

2 Options From£12.99

despatch by end of january 2018

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Lonicera kamtschatica 'Eisbar'

The supersize fruits on this Honeyberry grow up to 4cm long, making them among the giants of all Honeyberries. Despite its large fruits, Lonicera kamtschatica 'Eisbär' is a compact shrub, perfect for growing in the border or as a group in the kitchen garden. The…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Yellow
  • Longevity: Shrub

4 Options From£16.99

despatch within 3 working days

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Hosta sieboldiana var. elegans

A bold Hosta with large, shimmering blue-grey leaves which form eye-catching clumps. White bell-shaped flowers with a hint of lilac emerge in mid summer on tall slender stems. The corrugated, slightly cup-shaped leaves of Hosta sieboldiana var. elegans are a wonderful…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Lilac
  • Longevity: Perennial

2 Options From£9.99

despatch by end of may 2018

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Delosperma 'Wheels of Wonder'

Standard ice plants make excellent ground cover, providing low-maintenance and continuous flower power. But if you find the blooms a little small, then new 'Wheels of Wonder Series' is for you. A marked improvement, this new strain has flowers twice the size and…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Mixed
  • Longevity: Perennial

2 Options From£13.99

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