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Keeping you updated – Thompson & Morgan is operating as usual, working 24/7 to keep the country gardening. We are working closely with nurseries and growers to ensure that millions of plants are not wasted. Our site features many of these offers and we will add more every day, passing on these amazing deals to our customers.

Blue, Black, Perennial

6164 products, 777 articles, 855 blogs

Agapanthus 'Sweet Surprise'

0 Reviews

Agapanthus 'Sweet Surprise' sports umbels of pale blue flowers between late June and August. Each flower has a charming star-shape once opened fully and a dark blue stripe down the centre of each petal. With stiff, upright stems that rise above clumps of strap-like,…  More Info

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

2 Options From£26.39

within 21 working days

Out of Stock

Veronica 'Pink Harmony'

7 Reviews

A striking architectural plant producing erect flower spikes with attractive, silver-green foliage. Veronica 'Pink Harmony' has pale pink flowers which contrast beautifully with the hot pink stamens creating a stunning 'flash' of vivid colour  More Info

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

2 Options From£8.49

Out of Stock

Clematis 'Crystal Fountain'

0 Reviews

Clematis 'Crystal Fountain' is terrifically floriferous, in bloom throughout the summer and into early autumn. A fountain of crystal-blue stamens radiates from the centre of each dazzling blue, 15cm (6) wide bloom, and this variety's compact habit makes it ideal for…  More Info

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

2 Options From£21.59

within 21 working days

Out of Stock

Agapanthus 'Blue Ribbon'

7 Reviews

The starry, rich blue flowers of Agapanthus ?Blue Ribbon? form rounded flower heads in late summer. Each petal is marked with a violet-blue stripe that adds depth and interest to the display.  More Info

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

Just£14.39

Out of Stock

Agapanthus 'Golden Drop'

0 Reviews

Unique golden edged leaved agapanthus introduced at the 2012 Chelsea Flower Show. Also one of the few compact varieties, the lovely pale blue flowers which appear in May to June suitable for cutting and are followed by decorative seed heads. Suitable as an individual…  More Info

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

4 Options From£35.99

within 21 working days

Out of Stock

Muscari armeniacum

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

3 Options From£4.99

Out of Stock

Pansy 'Mystique Blue Halo'

11 Reviews

Fill your beds and pots with 'Mystique Blue Halo's unique colouring. The super-sized blooms will create a dazzling, cool blue display.  More Info

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

4 Options From£7.99

Out of Stock

Agapanthus 'Bluestorm'

0 Reviews

The flamboyant Agapanthus 'Bluestorm' is a neat and compact African Lily cultivar which reaches just 76cm (30), boasting more stems than traditional varieties and blooming through the summer for up to 3 weeks longer. The mass of soft violet flowers atop upright stems…  More Info

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

4 Options From£28.79

within 21 working days

Out of Stock

Perovskia atriplicifolia 'Little Spire'

4 Reviews

Smaller and more compact, this smaller variety of Russian Sage is a wonderful plant with all its larger cousins hardiness, and drought and heat tolerance, without taking up so much border space. Perovskia atriplicifolia 'Little Spire' has the advantage of looking great…  More Info

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

2 Options From£21.59

by the end of july 2020

Out of Stock

Hemerocallis 'Longfield's Black Magic'

15 Reviews

Extraordinary, large, purple-black blooms with delicately crimped edges make this a real show-stopper! The dramatic blooms are produced on upright stems above slender, strap-like foliage. Hemerocallis ?Longfield?s Black Magic? is a reliable, easy to grow perennial with…  More Info

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

2 Options From£6.99

Out of Stock

Eryngium alpinum

1 Review

This stylish perennial, produces upright, blue stems, topped with dramatic thistle-like blooms. The flower heads are cone shaped, surrounded by a lacy collar of spiky bracts, making a superb architectural focal point in borders.  More Info

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

Just£6.99

by the end of november 2020

Out of Stock

Commelina tuberosa

4 Reviews

Intense blue flowers. Wonderful in containers, rock gardens and the border.  More Info

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

2 Options From£9.99

by the end of january 2021

Out of Stock
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