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Home > 'Blue Perennials'

'Blue Perennials'

306 products, 1 articles, 30 blogs

Eryngium alpinum 'Blue Lace'

A spectacular alpinum selection with impressive long lasting clear violet-blue terminal flower heads on stunning blue stems. Makes an eye-catching addition to any border, and an attractive cut flower. Height: 85cm (34in)  More Info

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

Just£3.49

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Cichorium intybus 'Electric Blue'

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£3.99

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Echinops ritro subsp. ruthenicus

Tight clusters of deep blue flowers form mini-globes on long, strong straight stems of pure silver. The foliage is amazing and quite unique, giving off a silver sheen whatever the weather. Incredibly ornamental in or out of flower. An all round superb species…  More Info

  • Sun shade: Full sun


  • Longevity: Perennial

Just£0.99

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Salvia transylvanica

Effective blue border plant  More Info

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

Just£0.99

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Salvia microphylla 'Blue Monrovia'

Salvia microphylla 'Blue Monrovia' is a bushy, shrubby perennial. In mild areas it may remain evergreen, although generally considered a semi-evergreen where winters are harsh and the plants are given no protection. This pretty Sage forms an upright clump…  More Info

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

2 Options From£19.99

despatch within 3 working days

Penstemon heterophyllus 'Electric Blue'

Intensely blue flowers with a tinge of purple contrast beautifully with the silvery green foliage of this hardy perennial. The long lasting blooms of Penstemon heterophyllus 'Electric Blue? appear from June through to October enticing plenty of…  More Info

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

3 Options From£11.99

despatch by end of may 2019

Ajuga reptans 'Catlins Giant'

Bugle plants can often be found in shady corners as their glossy, evergreen leaves flourish in dark, damp environments all year round. Not only do these hardy perennials require little to no maintenance, but they also minimise the amount of weeding required as…  More Info

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

2 Options From£6.99

despatch by end of october 2018

Agastache hybrida 'Astello Indigo'

Transform your patio this summer with pots of beautiful, deep blue agastache. The imposing and long-lasting flower spikes are wonderfully mint-scented and will prove irresistible to butterflies and bees in borders or containers  More Info

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

Just£2.99

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Phlox Collection (Creeping)

Delicate in appearance but tough in character, these spreading evergreen perennials soften the edges of paths and grow in dry rockeries or on sunny banks and slopes. Perfect for creating colourful, weed smothering, ground cover. Height: 15cm (6'). Spread: 50cm …  More Info

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

4 Options From£9.99

despatch by end of september 2018

Meconopsis betonicifolia 'Blue'

Is there a more beautiful bloom in the entire flower kingdom then the famous Blue Poppy? It is only to be expected that an elusive, magical flower like this is a little harder to grow. The secret with this plant is to grow cool and well shaded. Height: 60-90cm …  More Info

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

Just£3.69

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Phlox 'Pharoah Blue Eye'

Creeping Phlox are useful for dry, sunny banks and all those places that other plants just won't grow! Plants produce an impenetrable mat of fragrant flowers; suppressing weeds and resisting drought! The detailed eye on each gleaming white is also quite striking!  More Info

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

2 Options From£9.99

despatch by end of october 2018

Salvia patens

A classic border plant, ideal for adding a cool blue drift to your planting schemes. The attractive, large blue hooded florets are borne on erect stems above toothed foliage. First year flowering, blooms throughout the summer into autumn. Height: 45-60cm …  More Info

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

Just£0.99

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Amsonia tabernaemontana

Starry clusters of elegant pale blue Amsonia flowers appear from spring to midsummer. This rarely seen perennial deserves better recognition in gardens for its long flowering period and reliable performance year after year. Amsonia tabernaemontana grows…  More Info

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

Just£1.49

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Agapanthus 'Northern Star'

Agapanthus 'Northern Star' is very free flowering, forming masses of umbel flower heads all through summer. The stunning deep blue flowers have a purple stripe the same as the purple base of the semi-evergreen foliage. A tall African Blue Lily, ideal in…  More Info

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

5 Options From£12.99

despatch by end of june 2019

Salvia farinacea 'Seascape Mixed'

A relaxing blend of three varieties of salvia with stunning flower spires in shades of blue with silver. These compact, branching and early flowering salvias will add a wonderful new dimension to bedding displays as they sway in the slightest breeze creating a…  More Info

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

Just£1.99

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Agastache foeniculum

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£0.99

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Catananche caerulea

An easy to raise, free flowering plant for the front of the border. The brilliant sky blue flowers are freely produced and are excellent for cutting, lasting a long time in water. They can also be dried for winter decoration. Will flower the same year from a late…  More Info

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

Just£2.99

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Centratherum intermedium 'Pineapple Sangria'

Attractive, fluffy, lavender-blue, button-like flowers approx 2cm ( 3/4in) across are produced all summer on bushy plants with unusual, pineapple fragrant foliage. Very heat and drought tolerant, attracting butterflies and adding fragrance to borders or containers.…  More Info

  • Sun shade: Full sun

  • Flower Colour: Blue
  • Longevity: Perennial

Just£0.99

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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

Just£2.99

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Eryngium 'Blue Steel'

Sea Holly is a useful perennial for its ability to cope with hot, dry conditions and coastal locations. Eryngium 'Blue Steel? produces dramatic cones of tiny blue flowers that are surrounded by a spiky, electric-blue collar. The tall flower stems…  More Info

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

2 Options From£4.99

despatch by end of november 2018

Brunnera 'Alexander's Great'

* New in 2015If you are looking for a statement plant then try this big robust silver beauty! Easy to care for, the heavily silver-veined leaves will make a dramatic impact in borders and containers. Sprays of sky-blue flowers atop wirey stems will appear from spring.  More Info

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

4 Options From£7.99

Short Perennial Mix

Perennials will fill your borders with colour, grace and elegance for many years with the minimum of maintenance. Some will even flower in their first year. To help you make the most of your borders, we have grouped together varieties that can be sown in June or…  More Info

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

Just£8.99

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Mazus reptans

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

4 Options From£14.99

despatch by end of september 2018

Geranium 'Rozanne'

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…  More Info

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

2 Options From£6.99

despatch by end of september 2018

Penstemon 'Pensham Czar'

Striking blue-purple, bell-shaped blooms with defined white centres adorn the tall stems of Penstemon 'Pensham Czar' from June right through to October. As with all Pensham Penstemons, this variety was bred to cope with British winters and boasts a strong growing habit,…  More Info

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

3 Options From£9.99

despatch within 24 hours

Tall Perennial Mix

Perennials will fill your borders with colour, grace and elegance for many years with the minimum of maintenance. Some will even flower in their first year. To help you make the most of your borders, we have grouped together varieties that can be sown in June or…  More Info

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

Just£8.99

despatch within 24 hours

Penstemon barbatus 'Cambridge Mixture'

A high quality mixture in shades of rose, pink, blue and purple, with grey-green foliage. Superb for containers and bedding with compact, neat habit and flowering only 16-20 weeks after sowing. Flowers summer. Height 30cm (12in)  More Info

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

Just£0.99

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Iris sibirica

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

5 Options From£14.99

despatch by end of september 2018

Eryngium planum 'Blue Hobbit'

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…  More Info

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

3 Options From£9.99

despatch within 24 hours

Clematis 'Perle d'Azur'

Clematis 'Perle d'Azur', as the name indicates, is a French cultivar that was created in 1885. This Victorian climbing beauty is loved for its elegant and simple pale blue flowers. They bloom in late summer and early autumn, when many other plants are past their…  More Info

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

2 Options From£14.99

despatch within 3 working days

Clematis 'New Love'

This clematis isn't like the usual clematis; it's a herbaceous perennial, so excellent for bulking out borders, alongside lupins, delphiniums and the like! The blooms are a spectacle too; and emit a punchy fragrance!  More Info

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

2 Options From£9.99

despatch by end of march 2019

Anemone 'Wild Swan'

RHS Chelsea Flower Show 2011 Plant o f the Year winner. Developed over a 10 year period, this is a cross between early and late anemone types and as such, the unique flowers bloom from April right through to the autumn. The beautiful, blue-backed blooms can be…  More Info

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

2 Options From£13.99

despatch by end of october 2018

Festuca glauca 'Elijah Blue'

Festuca glauca Elijah Blue is an easy-to-grow evergreen plant, perfect for patio pots, borders and rockeries. Its grassy leaves are an unusual shade of cobalt blue, and an architectural appearance makes this variety a good choice when designing a garden.…  More Info

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

2 Options From£14.99

despatch within 3 working days

Nepeta nervosa 'Blue Moon'

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£2.99

despatch within 24 hours

Vinca minor 'Bowles's Variety'

The spreading stems of this vigorous, mat-forming perennial are covered with glossy, dark green foliage that forms dense ground cover with time.  More Info

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

2 Options From£14.99

despatch by end of october 2018

Aquilegia caerulea

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.…  More Info

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

Just£2.99

despatch within 24 hours