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Hardy, Green, Blue, Black, Perennial

5473 products, 777 articles, 855 blogs

Geranium 'Rozanne'

81 Reviews

Winner of The RHS Chelsea Flower Show 'Plant of the Centenary'. A celebrated Cranesbill producing masses of saucer shaped, violet blue blooms with dainty white centres. Repeat flowering throughout the summer, hardy Geranium 'Rozanne' makes excellent ground cover through…  More Info

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

7 Options From£6.99

by the end of july 2021

Agapanthus Duo Collection

34 Reviews

This magnificent mix combines blue Agapanthus 'Flower of love? and the first ever bicolour Agapanthus 'Twister' for a striking two tone display  More Info

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

3 Options From£9.49

within 14 days

Agapanthus africanus 'Twister'

85 Reviews

Here's a plant that will stand out from the crowd in your garden - the first ever deciduous bicolour agapanthus. This African lily is robust, and truly hardy in the UK meaning it's perfect in the garden border as well as in a patio container.  More Info

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

5 Options From£9.49

by the end of august 2020

Agapanthus 'Fireworks'

147 Reviews

For stunning, exotic looking blue and white blooms that burst at the end of tall stems like a fireworks in your flower bed, look no further than this amazing African Lily. An easy to keep variety that will get bigger and produce more flowers each year.  More Info

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

3 Options From£10.99

by the end of september 2020

Geranium bohemicum 'Orchid Blue'

13 Reviews

Geranium 'Orchid Blue' is a selection by Thompson & Morgan from the species Geranium bohemicum. A short-lived border and ground cover plant which self-seeds to keep continuity. Masses of 2cm (0.75in) flowers of orchid-blue, veined in purple-violet, borne on bushy plants…  More Info

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

Just£4.19

within 14 days

Nepeta 'Six Hills Giant'

1 Review

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 borders and…  More Info

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

3 Options From£9.99

within 14 days

Eryngium planum 'Blue Hobbit' (Garden Ready)

26 Reviews

Eryngium 'Blue Hobbit' is an unusual and striking plant with sprays of spikey electric blue flowers, with up to 100 on each plant. They are very adaptable and can grow in various types of soil, and also in patio containers. As a dwarf variety it has a compact habit that…  More Info

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

Just£12.99

within 14 days

Pennisetum alopecuroides

22 Reviews

A graceful deciduous grass, Pennisetum alopecuroides forms large clumps of slender arching leaves. From midsummer a profusion of bristly bottle-brush flowers emerge, creating a soft misty effect. Chinese Fountain Grass is a low-maintenance perennial that looks wonderful…  More Info

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

6 Options From£9.49

within 14 days

Agapanthus 'Ever Sapphire'

4 Reviews

Agapanthus 'Ever Sapphire? is a semi-dwarf variety which produces multiple spikes of bright blue flowers all summer in a sunny or partly shaded position. Agapanthus are tough, fast growing and drought tolerant, these plants are a real 'must-have? for any style of garden…  More Info

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

2 Options From£9.49

Clematis napaulensis

36 Reviews

Originating from Nepal and parts of China, this rare and unusual clematis has a fascinating growth habit. Clematis napaulensis is cloaked in lush green foliage from autumn to early summer, before shedding its leaves in summer when most plants are in full growth.  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Walls & Fences
  • Flower Colour: Green
  • Longevity: Perennial

4 Options From£9.99

by the end of august 2020

Meconopsis grandis

7 Reviews

Sturdy and long-lived with huge flowers 10-12cm (4-5in) across in a wonderful blue, shot with violet on erect stems  More Info

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

Just£3.99

within 14 days

Campanula pyramidalis (Mixed)

3 Reviews

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

Just£2.99

within 14 days

Clematis 'New Love'

49 Reviews

This fabulous herbaceous Clematis has a self supporting, bush forming habit that is perfect for bulking up perennial borders with vigorous clumps of dense foliage. The star-shaped, indigo blooms of Clematis 'New Love' have slender, reflexed petals and a lovely sweet…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Walls & Fences
  • Flower Colour: Blue
  • Longevity: Perennial

5 Options From£15.99

by the end of august 2020

Eryngium 'Magical Blue Globe'

1 Review

Sea Holly makes a superb hardy perennial for hot, sunny borders. Thriving on gritty soils, they are tough, resilient and reliable. This variety boasts a compact habit, and attractive, sculpted foliage. The silvery stems are topped with domed flowers and surrounded by a…  More Info

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

2 Options From£15.59

within 14 days

Penstemon heterophyllus 'True Blue'

2 Reviews

Yes, this really is a true blue Penstemon, true from seed! Azure blue trumpet blooms in abundance, with green and grey tinged foliage. An added bonus too - as this charming perennial may be treated as a annual, flowering in its first year. Highly versatile for borders,…  More Info

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

Just£2.99

within 14 days

Agapanthus 'Black Magic'

0 Reviews

An architectural display of inky black flowers perch upon stiff, upright stems in early summer. The pointed buds droop demurely downwards as the flowers open, gradually colouring to a deep indigo-purple.  More Info

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

2 Options From£12.99

within 14 days

Agapanthus Duo Fireworks & Poppin Purple

0 Reviews

This superb duo of African Lilies brings together two exciting varieties. The bicolour blooms of Agapanthus ?Fireworks? compliment the dark blooms of Agapanthus 'Poppin' Purple' to perfection. Their rounded flower heads rise above neat clumps of narrow, strap-like…  More Info

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

2 Options From£16.99

by the end of september 2020

Agapanthus 'Full Moon'

0 Reviews

Agapanthus are perfect for adding structure and colour to borders in summer. Their upright stems and rounded flower heads rise above clumps of strappy, dark green foliage.  More Info

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

2 Options From£16.99

within 14 days

Delphinium grandiflorum 'Summer Nights'

3 Reviews

Attractive dwarf plants covered in a blanket of dainty midnight-blue flowers. Flowering in their first year from sowing makes them perfect for bedding borders or containers, providing a colourful display over a long summer period  More Info

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

Just£2.39

within 14 days

Asparagus 'Gijnlim' (Spring/ Autumn Planting)

0 Reviews

This reliable variety produces succulent green spears with dark purple tips, from early on in the season. Asparagus ?Gijnlim? is an ?all male? variety. With no need for seed production, it puts all its energy into producing spears; so you can expect heavier yields than…  More Info

  • Sun shade: full sun
  • Grows in: Vegetable Plot
  • Flower Colour: Green
  • Longevity: Perennial

3 Options From£9.99

by the end of october 2020

Nepeta nervosa 'Blue Moon'

4 Reviews

A neat, dwarf, bushy, habit, with large dense blue flower spikes, over a very long period. Quick to flower in 12-16 weeks from an April sowing. Ideal for borders and containers. Height: 30-40cm (12-16in)  More Info

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

Just£3.29

within 14 days

Malva sylvestris 'Mystic Merlin'

13 Reviews

A magical back of border plant with many large, silky blooms in shades from rich purple, through mauve, to the highly unusual and elusive blues. Flowers summer. Height: 150-180cm (5-6ft). Flowers in first year  More Info

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

Just£1.79

within 14 days

Agapanthus 'Ever' Duo

7 Reviews

A truly wonderful agapanthus double act! Agapanthus 'Ever? Duo are semi-dwarf plants that produce multiple spikes of bright blue and pure white flowers all summer in a sunny or partly shaded position. Tough, fast growing and drought tolerant, these plants are a real …  More Info

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

Just£11.99

Pansy 'Black Moon' F1 Hybrid

3 Reviews

You may have heard this claim before, but this Pansy truly represents one of the most impressive black flowers in cultivation today. Bushy, compact plants bearing medium sized flowers, so black they shine like velvet. Height: 15-20cm (6-8 in).  More Info

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

Just£2.99

within 14 days

Polemonium boreale 'Heavenly Habit'

3 Reviews

Attractive clusters of violet-blue flowers, each with a distinct golden yellow eye, look divine against the bushy, deep green foliage. Their dwarf habit makes them idea! in the front of borders, or even containers. If deadheads are removed regularly, plants will…  More Info

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

Just£1.79

within 14 days

Cichorium intybus 'Electric Blue'

2 Reviews

The wild form of the vegetable Chicory makes a beautiful addition to a cottage garden border. Electric blue flowers are produced on the many, breezy stems throughout summer. Be quick to enjoy their beauty, as the flowers always close by midday!  More Info

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

Just£4.79

within 14 days

Scabious 'House's Novelty Mix'

1 Review

A truly elegant border perennial with blooms in blue, mauve and white on long slender stems which are much in demand for cut flowers. Flowers summer. Height 30in  More Info

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

Just£2.99

within 14 days

Cat Grass 'Tabby Cat'

5 Reviews

Not just an outstanding ornamental or accent plant, variegated cat grass provides vitamins and fibre for your cat's diet and keeps them from chewing on your prized houseplants. Very quick growing and will be 15cm (6in) within six weeks for cats to enjoy. Later in season…  More Info

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

Just£2.39

within 14 days

Primula capitata 'Noverna Deep Blue'

8 Reviews

First year flowering. Attractive deep blue flower heads, held aloft by intriguing powdery white stems, above contrasting grey-green foliage. Adds an eye-catching display to borders and containers from summer into autumn. Height: 25-30cm (10-12in)  More Info

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

Just£3.99

within 14 days

Aquilegia caerulea

5 Reviews

Possibly the most beautiful Aquilegia of all. With glorious light to deep blue flowers 2-3in across sometimes fetching bi-coloured with white. An excellent border perennial, grand for cutting, in bloom for several weeks and will grow in sun or light shade. Flowers late…  More Info

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

Just£2.99

within 14 days

Asparagus 'Burgundine' (Spring/ Autumn Planting)

0 Reviews

Add a crunchy bite to your salads with delicious new variety. Asparagus 'Burgundine' has less fibrous lignin that most varieties, so you can enjoy it raw or lightly steamed! With a sweet, crunchy bite it is delicious with hummus and dips.  More Info

  • Sun shade: full sun
  • Grows in: Vegetable Plot
  • Flower Colour: Green
  • Longevity: Perennial

3 Options From£9.99

by the end of october 2020

Catananche caerulea 'Amor Blue'

0 Reviews

This fabulous summer perennial provides a stunning blue accent to planting schemes, flowering on tall, upright stems throughout the summer months. Later, attractive seedheads form, prolonging the season of interest right into autumn.  More Info

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

Just£0.99

within 14 days

Agastache foeniculum

1 Review

Silvery-green foliage which is scented unmistakenly of Aniseed. Flower spikes of blue appear during summer. Bees, butterflies and goldfinches love it!  More Info

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

Just£3.29

within 14 days

Aquilegia x hybrida 'Green Apples'

2 Reviews

The first green flowered Aquilegia with this spectacular Clematis-like flower formation. The buds open in a delightful lime-green shade, fading to a sumptuous apple-green before ageing to a gentle cream. Makes an interesting feature for borders  More Info

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

Just£3.69

within 14 days

Asparagus officinalis 'Martha Washington'

0 Reviews

A very strong growing and productive variety. Asparagus 'Martha Washington' produces long, thick spears in May and early June that are delicious eaten fresh from the garden and are also suitable for freezing. Although asparagus beds take several years to establish, each…  More Info

  • Sun shade: Full sun
  • Grows in: Vegetable Plot
  • Flower Colour: Green
  • Longevity: Perennial

Just£2.99

within 14 days

Campanula poscharskyana

1 Review

Commonly known as the Serbian Bellflower, Campanula poscharskyana forms a creeping mat of lax stems that are smothered in violet blue, star shaped flowers late spring to August. This low growing hardy perennial has a spreading habit that makes superb groundcover in…  More Info

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

2 Options From£9.99

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