Blue Flowers

The garden's most coveted colour — a curated palette of true-blue flower seeds, from sky-blue cornflowers to towering delphiniums. Loved by bees and beautiful in bouquets.

Best selling Best selling
  • $8.00

    Deep blue annual salvia for beds salvia victoria seeds are a popular choice for gardeners looking for deep blue salvia flowers with a neat, upright look. This annual flowering salvia is well suited to borders...

  • Trailing Sapphire seeds (Lobelia erinus) – annual Trailing Sapphire (Lobelia erinus) – annual seeds from SeedsChoice
    17%
    $5.00$6.00

    Sapphire trailing color for baskets and boxes trailing lobelia seeds are a popular choice for creating a soft, cascading edge in containers. This Sapphire selection is an annual flower type valued for its blue-purple lobelia...

  • $6.00

    Climbing annual flower seeds for vivid blue blooms climbing annual flower seeds ‘Clarks Blue’ are a decorative choice for adding vertical color to the garden in one season. This full sun annual vine develops striking...

  • $6.00

    Miss Jekyll blue annual for borders love in the mist seeds ‘Miss Jekyll’ are an elegant choice for gardeners looking for soft blue blooms with a light, airy look. This classic cottage garden annual is...

  • $8.00

    Perennial balloon flower for borders and pots platycodon grandiflorus seeds produce a distinctive perennial balloon flower valued for its sky-blue, bell-shaped blooms. Buds swell into rounded “balloons” before opening into star-like flowers, creating a standout...

  • $6.00

    Classic blue annual for borders and bouquets cornflower seeds ‘Blue Ball’ are a reliable choice for adding clear, rich blue tones to beds, borders, and naturalistic plantings. This blue cornflower variety forms neat, rounded blooms...

  • $6.00

    Light blue perennial for borders and rock gardens Alpine aster seeds produce a compact, low growing perennial flower with clear light blue blooms and a neat, mound-forming habit. This variety is valued as a spring...

  • $6.00

    Organic wild cornflower seeds for sky blue blooms wild cornflower seeds are a classic choice for adding clear, sky-blue color to seasonal flower displays. This organic annual produces abundant, finely shaped blooms with a light,...

  • $6.00

    Blue annual poppy flowers for sunny borders poppy flower seeds produce striking blue-toned annual blooms on upright plants that can reach around 90 cm tall. This variety is valued as an annual garden flower for...

  • $11.00

    African lily seeds for bold garden displays african lily seeds produce elegant, upright perennial flowers with rounded clusters of bell-shaped blooms held above thick, strap-like leaves. This classic ornamental is also known as lily of...

  • $6.00

    Classic pansy variety for borders and beds pansy seeds ‘Ullwater’ are a classic choice for gardeners who want reliable, large blooms and a neat, compact habit. This is a large-flowered viola type with a cool...

  • $6.00

    Organic Blue Ball cornflower for classic borders cornflower seeds bring the much-loved Blue Ball type to your garden with richly filled, double blooms in a clear blue tone. This organic selection is an annual flower...

  • $6.00

    Classic blue blooms for natural garden drifts forget me not seeds are a popular choice for creating soft, sky-blue colour in borders and informal plantings. This variety, Myosotis alpestris, is known for producing many small...

  • $6.00

    Forget-me-not seeds for blue spring displays forget-me-not seeds ‘Blue Ball’ are a classic choice for soft, sky-blue colour in borders and containers. This compact, mound-forming variety produces many small blue flowers with a contrasting yellow...

  • $6.00

    Perennial passion flower vine for gardens Passiflora caerulea seeds are a popular choice for gardeners looking for a perennial climbing vine with striking, decorative blooms. Often searched as blue passion flower seeds, this ornamental climber...

  • $6.00

    Violet-blue annual blooms for compact garden spaces phlox blue beauty seeds produce a richly flowering annual with clear violet-blue blossoms that bring bright color to small spaces. This low growing phlox annual forms a neat,...

  • $6.00

    Vibrant annual blue blooms for borders california bluebell seeds bring striking, clear-blue color to seasonal displays, with a naturally compact habit that suits many garden styles. Also known as Phacelia campanularia, this annual flower is...

  • $6.00

    Blue Mink annual color for beds floss flower seeds are a popular choice for adding soft, tufted blue color to seasonal displays. This variety is commonly known as Blue Mink and belongs to Ageratum houstonianum,...

  • Pansy Celestial seeds (Viola wittrockiana) – biennial flower Pansy Celestial (Viola wittrockiana) – biennial flower seeds from SeedsChoice
    17%
    $5.00$6.00

    Celestial pansy for bold blue borders pansy seeds ‘Celestial’ are a classic choice for gardeners who want a large-flowered pansy with a clear blue look for beds, edging, and seasonal containers. This variety belongs to...

  • $6.00

    Sky Blue Annual Flowers For Shady Spots baby blue eyes seeds bring a soft, sky-blue look to borders and mixed plantings, with a naturally low, spreading habit that suits many garden styles. Also known as...

Shop Flowers by Colour

Find your perfect shade — our most popular bloom in each colour

What to Sow Now — August

Our pick of seeds you can sow this month, updated automatically.

Blue flower seeds — the garden's most coveted colour

True blue is the rarest and most sought-after colour in the flower garden, and this collection gathers the best blue-flowering varieties from across our flower seed range — from sky-blue cornflowers to deep delphinium spires. New to flowers? Our flower growing guide covers the basics.

Sow at the right time for the longest display — the calendar shows when.

Blue flowers to grow

For classic blues, sow cornflowers and the misty blooms of nigella (love-in-a-mist); for height and drama, the tall spires of delphinium; and for a soft haze, dainty forget-me-nots. Many true-blue flowers are also bee favourites, since bees see blue especially well.

Designing with blue

Blue is a cool, calming colour that recedes into a border and makes a garden feel larger. Pair it with yellow or orange for a vivid contrast, or with white and silver foliage for a serene, classic scheme. Blue flowers are lovely in the vase too, cooling down a bright bouquet.

Planning a colour scheme? Here's where to look next.

Popular flower categories: Cornflower · Nigella · Delphinium · Forget-Me-Not · Pollinator Flowers

At SeedsChoice, every order ships from Meppel, NL with fast, tracked EU delivery.

Frequently Asked Questions

Which flowers come in true blue?
Cornflower, delphinium, nigella, forget-me-not, morning glory and lobelia are among the best true blues.

Is true blue rare in flowers?
Yes — genuinely blue blooms are uncommon in nature, which is part of why they are so prized.

Do bees like blue flowers?
Yes — bees see blue especially well, so many blue flowers are excellent for pollinators.

How do I use blue in a border?
Pair it with yellow or orange for vivid contrast, or with white and silver for a calm, classic scheme.

When do I sow blue flowers?
It varies by variety — check the flower sowing calendar for each type.