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Home > 'Blue Flower Seeds'

'Blue Flower Seeds'

141 products, 71 blogs

Heteropappus meyendorfii 'Blue Knoll'

Seed of this amazing new garden plant can be sown early in the year* and by the same autumn will be completely smothered in hundreds and thousands of shiny, light reflecting flowers, forming perfect mounds (or knolls) 30cm (12in) high and 45cm (18in)…  More Info

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

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Prunella grandiflora 'Freelander Blue'

Originating in the mountainous regions of Europe, this vigorous and hardy perennial has been very successfully bred and selected from the wild form. Its lovely flower spikes of deep violet-blue blooms make a great choice for the front of borders and will serve as…  More Info

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

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Linum narbonense 'Heavenly Blue'

One of the finest blue flowered plants. A profusion of luminous ultra-marine blue flowers  More Info

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

Just£0.69

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Summer Flowers 'True Blue Skies Mix'

A delightful mixture of blue flowering annuals that will add colour and variety to borders. The wide range of varieties includes favourites such as nigella, salvia, centaurea and larkspur, which have been selected to flower gradually over the summer…  More Info




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Asarina scandens 'Jewel Mixed'

Sophisticated climber, masses of 1.5in indigo to violet blue, pink or pure white flowers. Quick to bloom from an early sowing. Ideal for the cold greenhouse or conservatory. One of the longest flowering annuals, in bloom untill Christmas if there is…  More Info

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

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Ageratum houstonianum 'Blue Mink'

This relatively old variety of flossflower remains popular for good reason. The compact, uniform plants bear large, fluffy, powder-blue flowers. With a vigorous, open habit, Ageratum houstonianum 'Blue Mink' is perfect for adding texture and colour to…  More Info

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

Just£1.99

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Larkspur 'Gentian Blue'

A clear, fresh Gentian blue which is perfect for bedding, borders and containers. This impressive Larkspur boasts a stunning colour which is breathtaking and essential for any garden.  More Info

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

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Ageratum houstonianum 'Blue Danube' F1 Hybrid

A large-flowered, vigorous variety of annual ageratum with powder-puff flower heads of soft, lavender blue. The fluffy, weather resistant blooms are particularly attractive to butterflies. With a dense, compact habit, Ageratum houstonianum 'Blue  More Info

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

Just£3.49

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Aster 'Starlight Mixed'

One of the best dwarf Asters! Intriguing spider-like flowers smother compact basal branched plants in attractive shades of blue, purple, scarlet and rose. Early to flower, adding a colourful display to borders or patio containers over a long   More Info

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

Just£2.99

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Phacelia viscida 'Tropical Surf'

An attractive easy to grow annual with masses of scrumptious azure-blue blooms with white lacy centres, produced on low ground hugging plants. A unique colour for, adding to borders or containers  More Info

  • Sun shade: Full sun

  • Flower Colour: Blue
  • Longevity: Annual

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Nemesia strumosa compacta 'Tapestry'

Bushy upright plants in a rich tapestry of colours which complement and contrast, in a very wide range including an eye-catching blue and white. The result is a superb glowing carpet of colour  More Info

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

Just£2.69

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Easy Annuals 'Fairy Mixed'

A delightful mixture of dwarf annuals adding a touch of grace to borders. This wide range of varieties has been selected to flower gradually, giving your borders an ever-changing, magical appearance throughout the summer. Perfect border filler; sow seed in…  More Info

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

Just£2.29

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Geranium bohemicum 'Orchid Blue'

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…  More Info

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

Just£0.99

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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

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Lobelia erinus 'Blue Wings'

On T&M's trials we believe we have found the largest flowered bedding lobelia available. Exceptionally abundant cobalt blue flowers cover compact mounds of foliage. With superb weather resistance Lobelia 'Blue Wings' makes a sparkling…  More Info

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

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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

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Delphinium grandiflorum 'Summer Nights'

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

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Polemonium boreale 'Heavenly Habit'

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

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Cerinthe major 'Purpurascens'

A highly versatile, aristocratic border plant. The fleshy blue-green leaves with white mottling, spiral up the stem, transforming themselves into tighter packed, sea blue bracts - and then the finale - small clusters of rich purple/blue tubular, nodding   More Info

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

Just£3.69

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Veronica (Mixed Colours)

Fantastic front of border or rockery plants. Producing many erect spikes, full of tiny flowers that create much impact in a complementary range of colours - orchid pink, royal blue, white, rose and light blue. Flower summer. Height: 30-35cm …  More Info

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

Just£3.69

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Californian Poppy 'Sun Shades'

Bright fiery orange and yellow blooms unfurl above a sea of ferny blue-green foliage for a bold summer display. These dainty hardy annuals are tougher than they appear and positively thrive on poor, dry soils. The papery flowers attract bees and hoverflies, and…  More Info

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

Just£2.99

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Nigella damascena 'Moody Blues'

An exquisite mixture of Love-in-a-Mist, bringing together some spectacular double blooms in a delightful range of blue shades, which are followed by attractive seedpods. Easy-to-grow and ideal for creating a soothing drift of colour in borders as well as making a…  More Info

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

Just£2.99

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Nigella papillosa 'Delft Blue'

Striking and unusual blue, grey blooms reminiscent of the famous Dutch 'Delft Blue' pottery. An easy to grow annual, delightful sown direct as large drifts in borders. The tall flower stems are followed by intriguing seed pods ideal for…  More Info

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

Just£1.99

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Penstemon heterophyllus 'True Blue'

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.…  More Info

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

Just£2.99

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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…  More Info

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

Just£0.99

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Californian Poppy 'XL Yellow'

The largest Californian poppy you'll grow featuring fluorescent yellow flowers twice the size of normal types.  More Info

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

Just£0.99

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Lobelia erinus 'Cambridge Blue'

A compact variety that holds an RHS AGM for its excellent garden performance. Clear sky-blue lobelia flowers are set above narrow, airy foliage on compact plants. Lobelia 'Cambridge Blue' makes a sparkling addition to beds, containers, flower  More Info

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

Just£2.49

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Convolvulus 'Tricolor Blue Ensign'




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Salvia farinacea 'Victoria'

Tall, handsome spiky plants which add a touch of elegance to a bed or border. The flower spikes are produced over a long period and are excellent for cutting. A Fleuroselect Bronze Medal Winner. Flowers summer/autumn. Height 18in  More Info

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

Just£3.49

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Cornflower 'Trailing Blue Carpet'

Cornflowers are a traditional wildflower or annual border addition. Now you can bring them to yourbaskets and container displays thanks to the relaxed prostrate habit of 'Trailing Blue Carpet?. Perfect for path and border edging. Height 10cm (4in).  More Info

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

Just£1.99

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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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Annual Flower Border Seed Collection (Short)

Annuals flower throughout the summer and will create an eye-catching display in a sunny border, bring colour to your patios or brighten up a dull corner. To help you make the most of your borders or containers, we have grouped together varieties by height.  More Info

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

Just£9.99

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Cornflower 'Dwarf Blue Midget'

A fantastic little cornflower rather like a ball of colour. Lower and neater than any we believe you will have seen before. Full of bloom at 15cm (6in) high. Ends up about 30cm (12in) high. Easy to grow and suitable for beds, borders, containers etc. Flowers  More Info

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

Just£2.29

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Morning Glory 'Light Blue Star'




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Agapanthus Blue & White Collection

This magnificent mix combines blue Agapanthus 'Queen of the Ocean' and white Agapanthus 'Polar Ice' for a striking two tone display. In summer, these impressive perennials lend their stature to borders and patio containers, where their architectural seed  More Info

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

2 Options From£7.99

despatch by end of april 2019

Lobelia erinus 'Waterfall Blue Ice'

If you've been disappointed by lobelia in the past, your faith will be restored when you try Lobelia 'Waterfall'. In recent RHS trials, this variety flowered on and on through every sort of adverse weather, still blooming long after other lobelia had faded.…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Raised Bed
  • Flower Colour: Blue
  • Longevity: Annual

2 Options From£12.99

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