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Blue Perennial Plants

Showing 60 product(s)
Related Categories: Perennial | Rockery Plants
  1. Saintpaulia Plant - Delft

    Saintpaulia Plant - Delft

    Semi-double cornflower blue flowers. Standard variety. Flowers January-December. Height 11-20cm. GP - Greenhouse perennial.

    Despatch from April 2019 1 Large Plug Plant
  2. Penstemon Plants - Electric Blue

    Penstemon Plants - Electric Blue

    A fully hardy, low-growing penstemon producing multiple spikes of impressive electric blue flowers that are tinged with pink before opening fully. Flowers June-September. Height 45cm (18"). Middle of border variety.

    Despatch from April 2019 16 Value Plugs
  3. Scabiosa Plants - Blue Note

    Scabiosa Plants - Blue Note

    A compact front of border perennial producing a profusion of lovely bright blue pin-cushion flowers with frilly edge of the same colour on short stems over a long period. Flowers June-October. Height 20-30cm (8-12").…

    Despatch from April 2019 16 Value Plugs
  4. Nepeta Plants - Blue Moon

    Nepeta Plants - Blue Moon

    This first year flowering perennial boasts large, dense, pale blue flower spikes. It's early blooming, free flowering, and heat-tolerant. Soft, hairy, aromatic foliage. Flowers June-September. Height 45cm (18").…

    Despatch from June 2019 16 Value Plugs
  5. Aubrieta Plants - Mix

    Aubrieta Plants - Mix

    A selection of different coloured varieties producing a mass of flowers that provide early season colour in the garden. Supplied in a 9cm pot. Flowers April-May. Height 1-10cm. (Please note: Due to more aubrietas being blue

    18 x 9cm Potted Plants
    From £25.00
  6. Aubrieta Plants - Mix

    Aubrieta Plants - Mix

    A selection of different coloured varieties producing a mass of flowers that provide early season colour in the garden. Supplied in a 9cm pot. Flowers April-May. Height 1-10cm. (Please note: Due to more aubrietas being blue

    9 x 9cm Potted Plants
    From £20.00
  7. Cosmos Plants - Capriola

    Cosmos Plants - Capriola

    …it blooms all summer. Try it with blue ageratum or in cut flower posies. Height 60cm (2).These traditional cottage garden favourites are perfect for all types of informal plantings. Use taller varieties at…

    Despatch from May 2019 15 Garden Ready Plugs
    From £9.99
  8. Cosmos Plants - Capriola Save 24%

    Cosmos Plants - Capriola

    …it blooms all summer. Try it with blue ageratum or in cut flower posies. Height 60cm (2).These traditional cottage garden favourites are perfect for all types of informal plantings. Use taller varieties at…

    Despatch from May 2019 30 Garden Ready Plugs
    From £14.99 Was £19.98
  9. Lotus Plants - Fire Vine

    Lotus Plants - Fire Vine

    …appear during the first summer, the plants will initiate more flower buds if lightly trimmed and kept in a bright, cool but frost free location during the winter and early spring and then planted out in a hot…

    Despatch from May 2019 6 Super Plugs
  10. Salvia Plants - New Dimensions Mix

    Salvia Plants - New Dimensions Mix

    Compact plants producing flower spikes in a combination of blue & purple/pink. Flowers June-September. Height 20-30cm (8-12"). Front of border variety.

    Despatch from April 2019 16 Value Plugs
  11. Streptocarpus Plant - Marion

    Streptocarpus Plant - Marion

    White and blue sport from Katie with all the same excellent qualities. Exceptionally long flowering season. Great for the show bench. Flower size 5cm+. Flowers early April-late October. Height 11-20cm. Tender perennial<…

    Despatch from April 2019 1 Super Plug Plant
  12. Perovskia atriplicifolia Plant

    Perovskia atriplicifolia Plant

    Commonly called Russian Sage, Perovskia atriplicifolia is an upright herbaceous perennial shrub. Light blue tubular flowers bloom over a long period from July until October and the grey-green leaves are aromatic,…

    Despatch from August 2019 3 Litre Potted Plant
  13. Saintpaulia Plant - Tula

    Saintpaulia Plant - Tula

    An older, but very beautiful variety. Large coral flowers with a sparkling rose-coloured overlay, a thin blue band and a distinct white edge. Standard variety. Flowers January-December. Height 11-20cm. GP - Greenhouse Despatch from April 2019 1 Large Plug Plant

  14. Saintpaulia Plant - Ae-Amur Elite

    Saintpaulia Plant - Ae-Amur Elite

    Semi-double white frilled flowers with pink patches and blue fantasy. Standard variety. Flowers January-December. Height 11-20cm. GP - Greenhouse perennial.

    Despatch from April 2019 1 Large Plug Plant
  15. Saintpaulia Plant - Favorite Child

    Saintpaulia Plant - Favorite Child

    Semi-double white ruffled flowers with medium blue edges. Medium green quilted foliage. Standard variety. Flowers January-December. Height 11-20cm. GP - Greenhouse perennial.

    Despatch from April 2019 1 Large Plug Plant
  16. Saintpaulia Plant - Podvenechnaia

    Saintpaulia Plant - Podvenechnaia

    This Russian variety means "Betrothed" and has single or semi-double pink to light violet flowers that have a white eye and edge and violet-blue fantasy. Standard variety. Flowers January-December. Height 11-20cm. GP - Greenhouse …

    Despatch from April 2019 1 Large Plug Plant
  17. Saintpaulia Plant - Ness' Midnight Fantasy

    Saintpaulia Plant - Ness' Midnight Fantasy

    A free flowering jewel among saintpaulias. The semi-double light pink flowers show fascinating blue fantasy markings. Dark green foliage with a red back. Standard variety. Flowers January-December. Height 11-20cm. GP -…

    Despatch from April 2019 1 Large Plug Plant
  18. Meconopsis Seeds - Lingholm

    Meconopsis Seeds - Lingholm

    Everyone loves the 'blue poppy' and Lingholm is the largest flowered variety of those available with teh deepest colour too. Easier to grow than other perennial poppies. Height 90cm (3'). HP - Hardy perennial.

    Delivery within 7 days Average Seeds 70
  19. Dahlia Seeds - Dwarf Amore Mixed Save 6%

    Dahlia Seeds - Dwarf Amore Mixed

    plants to bring a riot of colour to the summer garden. Ideal for tubs and borders and excellent grown with blue salvia Victoria. Spring sown plants will flower right through to the Autumn frosts and…

    Delivery within 7 days Average Seeds 60
    From £2.79 Was £2.99
  20. Dahlia Seeds - Dwarf Amore Save 33%

    Dahlia Seeds - Dwarf Amore

    plants to bring a riot of colour to the summer garden. Ideal for tubs and borders and excellent grown with blue salvia Victoria. Spring sown plants will flower right through to the Autumn frosts and…

    Delivery within 7 days Average Seeds 120 - Twin Pack
    From £3.99 Was £5.98
  21. Cineraria Seeds - Maritima Dwarf Silver

    Cineraria Seeds - Maritima Dwarf Silver

    Delightfully fringed, deeply cut silver foliage. Perfect with bedding items such as red salvia, blue petunias, geraniums or yellow marigolds. HHA/HHP - Half hardy annual/Half hardy perennial. Height 23-30cm (9-12").

    Delivery within 7 days Average Seeds 200
    From £1.99
  22. Cineraria Maritima Seeds - Dwarf Silver

    Cineraria Maritima Seeds - Dwarf Silver

    Delightfully fringed, deeply cut silver foliage. Perfect with bedding items such as red salvia, blue petunias, geraniums or yellow marigolds. HHA/HHP - Half hardy annual/Half hardy perennial. Height 23-30cm (9-12").

    Delivery within 7 days Average Seeds 400 - Bulk Pack
    From £2.79
  23. Pansy Seeds - Cassius Mixed F1 Save 12%

    Pansy Seeds - Cassius Mixed F1

    …(3) in diameter! Blotched blooms in red, yellow and blue shades together with white, for summer or spring flowering. And unlike other large-flowered varieties where flower size diminishes in hot weather, Cassius…

    Delivery within 7 days Average Seeds 120
    £2.19 Was £2.49
  24. Viola Seeds - Funny Face

    Viola Seeds - Funny Face

    plants whose small flowers have whiskered markings resembgling little faces. Colours include violet-purple, mauve, lavender-blue, lilac-pink, bronze and creamy-white, combined with yellow or golden centres. Height…

    Delivery within 7 days Average Seeds 200
  25. Cobaea Scandens Seeds

    Cobaea Scandens Seeds

    A fast growing climber with large, bell-shaped, violet-blue flowers. Under glass, the plant is perennial. For outdoor use, treat as a half hardy annual. HHP - Half hardy perennial. Height up to 300cm (10').…

    Delivery within 7 days 13 Seeds
  26. Agastache Plant - Liquorice Blue

    Agastache Plant - Liquorice Blue

    This first-class variety produces attractive, upright spikes of hooded rose-purple blooms that are a magnet for bees and butterflies. Flowers June-September. Height 60cm (24"). Middle of border variety. Supplied in a 9cm pot.

    Delivery within 14-21 days 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  27. Lithodora Plant - Heavenly Blue

    Lithodora Plant - Heavenly Blue

    …evergreen, producing a succession of deep blue flowers over dark green foliage. RHS Award of Garden Merit winner. Flowers April-September. Height 15cm (6"). Early flowering variety. Supplied in a 9cm pot. Front of…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  28. Eryngium Plant - Blue Hobbit

    Eryngium Plant - Blue Hobbit

    Small, thimble-like, rich blue flowers are surrounded by short spikes and carried on much-branched, short, blue stems that rise from a rosette of mid-green, oval leaves. Great for seaside garden, and the front of the…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  29. Red, White & Blue Plants - Collection Save 45%

    Red, White & Blue Plants - Collection

    The collection contains one each of a lovely variety of red geum, blue penstemon and white leucanthemum giving a delightful mix of colour to your borders and pots. Flowers will be produced during May-September and the Delivery within 14 days 3 x 9cm Potted Plants

    £12.00 Was £21.97
    More Info Currently Unavailable
  30. Corydalis Plant - Blue Dragon

    Corydalis Plant - Blue Dragon

    Purple-bronze, cut leaf foliage sets a great stage for clear blue, tubular, scented flowers on short stems. Flowers through spring and summer. Height 30-40cm (12-16"); spread 40-50cm (16-20").Clump-forming plants

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  31. Delphinium Plant - Magic Fountains Sky Blue White Bee

    Delphinium Plant - Magic Fountains Sky Blue White Bee

    A vigorous growing variety producing light blue and white flowers that are more tranquil and being a slightly more compact form giving excellent garden performance on sturdy spikes. A cottage garden favourite. Ideal for…

    Despatch from June 2019 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  32. Agapanthus Plant - Pretty Heidy

    Agapanthus Plant - Pretty Heidy

    Royal blue flowers on miniature plants. Perfectly formed for container culture, tough and sun-loving, The exotic African Lily! Flowers July-September.

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  33. Agastache Plants - Blue Boa

    Agastache Plants - Blue Boa

    A great focal point to a perennial border and great for attracting wildlife. Bred for its massive flowers. with tall, showy, upright, violet-blue spikes, repeat-blooming over a long period. The cut fragrant foliage is also…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  34. Potted Perennial Plants - LUCKY DIP Save 64%

    Potted Perennial Plants - LUCKY DIP

    Light up your garden year after year with our brilliant mixed perennial plants. It's hard for us to grow exactly the right number of plants that we need each season and sometimes grow too many of certain…

    Despatch from May 2019 6 Potted Plants
    £15.00 Was £41.96
    More Info Currently Unavailable
  35. Popular Perennial Plants - PLUS 3 FREE Primula Vialii Save 40%

    Popular Perennial Plants - PLUS 3 FREE Primula Vialii

    …9 potted perennial plants for 27. Our gardeners have picked out a vibrant selection of perennials that combine to create instant wow factor in time for summer.The collection includes the Armeria in…

    9 x 9cm Potted Plants
    £27.00 Was £45.00
    More Info Currently Unavailable
  36. 100 Perennial Plants for 100 - Lucky Dip Save 45%

    100 Perennial Plants for 100 - Lucky Dip

    …out 100 of our favourite perennials, so you can expect blooms, colours and fragrances that work well together and look fantastic.This collection includes 3 of each of the varieties below in 9cm pots, plus many more.…

    100 x 9cm Potted Plants
    £150.00 Was £273.96
    More Info Currently Unavailable
  37. Penstemon Plants - Electric Blue Save 72%

    Penstemon Plants - Electric Blue

    A fully hardy, low-growing penstemon producing multiple spikes of impressive electric blue flowers that are tinged with pink before opening fully. Flowers June-September. Height 45cm (18"). Middle of border variety.…

    6 x 9cm Potted Plants
    £10.00 Was £35.94
    More Info Currently Unavailable
  38. Scabious Plants - Blue Note Save 72%

    Scabious Plants - Blue Note

    6 x 9cm Potted Plants
    £10.00 Was £35.94
    More Info Currently Unavailable
  39. Penstemon Plant - Electric Blue

    Penstemon Plant - Electric Blue

    A fully hardy, low-growing penstemon producing multiple spikes of impressive electric blue flowers that are tinged with pink before opening fully. Flowers June-September. Height 45cm (18"). Middle of border variety.…

    Delivery within 7 days 3 x 9cm Potted Plant
    £10.00
    More Info Currently Unavailable
  40. Salvia Plant - Blue Note

    Salvia Plant - Blue Note

    Intense deep blue flowers produced in profusion, compact grower, unique colour for this type of salvia, long flowering period all summer, non-stop flowering, masses of flowers, very upright grower, protection may be…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  41. Scabious Plant - Blue Note

    Scabious Plant - Blue Note

    A compact front of border perennial, producing a profusion of lovely bright blue pin-cushion flowers with frilly edge of the same colour on short stems over a long period. Flowers June-October. Height 20-30cm (8-12")…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  42. Festuca Plant - Elijah Blue

    Festuca Plant - Elijah Blue

    Stunning new growth. The fronds emerge as orange or copper coloured and really stand out. Striking when young. Mature to dark green, stiff and upright. Evergreen fern. Easy to grow if kept moist. Flowers May-June. Height 80-90cm …

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  43. Stokesia Plant - Blue Star

    Stokesia Plant - Blue Star

    The electric blue flowers of this evergreen perennial are produced in late summer and early autumn, providing a lovely fresh colour just when the garden needs a little something extra. Flowers September-October.…

    Despatch from August 2019 1 x 2 Litre Potted Plant
    £9.99
    More Info Currently Unavailable
  44. Stokesia Plant - Blue Star

    Stokesia Plant - Blue Star

    The electric blue flowers of this evergreen perennial are produced in late summer and early autumn, providing a lovely fresh colour just when the garden needs a little something extra. Flowers September-October.…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  45. Nepeta Plant - Blue Moon

    Nepeta Plant - Blue Moon

    A first-class perennial with large, dense, pale blue flower spikes. It's early blooming, free flowering, and heat-tolerant. Soft, hairy, aromatic foliage. Flowers June-September. Height 45cm (18"). Middle of border…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  46. Agastache Plant - Blue Boa Save 50%

    Agastache Plant - Blue Boa

    A superb focal point to a perennial border and great for attracting those bees and butterflies, we love this striking little number.Flowers July-October. Blue Boa - Bred for its massive flowers. with tall, showy,…

    Delivery within 7-14 days 1 x 2 Litre Potted Plant
    £4.99 Was £9.99
    More Info Currently Unavailable
  47. Penstemon Plant - Electric Blue

    Penstemon Plant - Electric Blue

    A fully hardy, low-growing penstemon producing multiple spikes of impressive electric blue flowers that are tinged with pink before opening fully. Flowers June-September. Height 45cm (18"). Middle of border variety.…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  48. Nepeta Plant - Purrsian Blue Save 50%

    Nepeta Plant - Purrsian Blue

    …leaves set off the light blue flowers of this variety beautifully. And, unlike some other catmints, it will continue to bloom throughout the summer! Flowers May-September. Height 30-40cm (12-16"); spread 30-40cm (12…

    Delivery within 7-14 days 1 x 2 Litre Potted Plant
    £4.99 Was £9.99
    More Info Currently Unavailable
  49. Hosta Plant - Fragrant Blue

    Hosta Plant - Fragrant Blue

    The chalky blue leaves retain their colour all summer and even continue to produce new leaves of this colour during the summer. Lightly fragrant lilac flowers are produced in late summer. Ideal for a damp, semi-shaded spot,…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  50. Vintage Perennials Save 41%

    Vintage Perennials

    Summer perennials - colour not just this summer but year after year! Fill your garden with an almost instant display of shades of blue, purple, pink and white, that will last all summer. There are varieties for the…

    18 x 9cm Potted Plants (3 of each variety)
    £30.00 Was £51.00
    More Info Currently Unavailable
  51. Aubrieta Plant - Blue Beauty

    Aubrieta Plant - Blue Beauty

    …covering perennial or alpine that is smothered in flowers in spring and into early summer. The plants create mounds of small foliage which can also trail over walls are covered with masses of flowers,…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  52. Nepeta Plant - Purrsian Blue

    Nepeta Plant - Purrsian Blue

    …leaves set off the light blue flowers of this variety beautifully. And, unlike some other catmints, it will continue to bloom throughout the summer! Flowers May-September. Height 30-40cm (12-16"); spread 30-40cm (12…

    Delivery within 7-14 days 1 x 5 Litre Potted Plant
    £12.99
    More Info Currently Unavailable
  53. Agastache Plant - Liquorice Blue

    Agastache Plant - Liquorice Blue

    This first-class variety produces attractive, upright spikes of hooded rose-purple blooms that are a magnet for bees and butterflies. Flowers June-September. Height 50-60cm (20-24"). Middle of border variety. Supplied in a 5 litre…

    Delivery within 14-21 days 1 x 5 Litre Potted Plant
    £12.99
    More Info Currently Unavailable
  54. Eryngium Plant - Blue Hobbit

    Eryngium Plant - Blue Hobbit

    Small, thimble-like, rich blue flowers are surrounded by short spikes and carried on much-branched, short, blue stems that rise from a rosette of mid-green, oval leaves. Great for seaside garden, and the front of the…

    3 x 9cm Potted Plant
    £10.00
    More Info Currently Unavailable
  55. Lavender Plant - Forever Blue

    Lavender Plant - Forever Blue

    …quite unique, therefore flowering for longer than most other lavenders. It is earlier to start flowering than most other varieties. Has a compact bushy habit. Masses of deep blue coloured flowers produced. Great for…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  56. Aquilegia Plants - Spring Magic Blue & White

    Aquilegia Plants - Spring Magic Blue & White

    A stunning variety with contrasting clear blue and white flowers and bright yellow stamens. The flowers of this Cottage Garden Classic delicately hang during spring showing the further detailing of the back of the flower…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  57. Lithodora diffusa Plant - Blue Star

    Lithodora diffusa Plant - Blue Star

    The most special blue flower! Space-filling, mini shrubs for borders and rockeries. Known for its long flowering period. Can be grown in the border or containers. Flowers April-September. Height 10-20cm. Supplied in a 9cm…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  58. Scabious Plant - Fama Deep Blue

    Scabious Plant - Fama Deep Blue

    …produced all the way through summer and into early autumn. These compact varieties are perfect for the front of a border or in a patio container. Mid blue flowers on reasonably long stems. One of the largest flowers…

    Delivery within 7-14 days 1 x 9cm Potted Plant
    £7.99
    More Info Currently Unavailable
  59. Delphinium Plant - Magic Fountains Dark Blue

    Delphinium Plant - Magic Fountains Dark Blue

    …semi-double blooms. Exceptionally good for cutting. A vigorous-growing strain, much more heat tolerant and less fussy than most other varieties. Flowers June-August. Height 90cm (36"); spread 40cm (16"). Supplied in a 9cm…

    Despatch from June 2019 1 x 9cm Potted Plant
    £5.99
    More Info Currently Unavailable
  60. Scabious Plant - Fama Deep Blue

    Scabious Plant - Fama Deep Blue

    …way through summer and into early autumn. These compact varieties are perfect for the front of a border or in a patio container. Fama Deep Blue - Mid blue flowers on reasonably long stems. One of the largest…

    Despatch from June 2019 1 x 2 Litre Potted Plant
    £9.99
    More Info Currently Unavailable
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