Blue-flowering plants

Plants with blue flowers for a colour-themed border.

True blue is the rarest and most coveted flower colour, and a blue border feels cool, receding and serene, seeming to push the boundary further away. Most so-called blues lean towards purple or mauve, so check flowers in the ground rather than trusting a catalogue photograph. Blue glows beside its complementary orange and warms up next to yellow; against grey foliage it turns misty and soft. Because blue recedes, mass it generously or it disappears at a distance. The mistake is expecting a sky-blue that few hardy plants truly deliver. These plants are the closest to genuine blue available to UK gardeners, from spring bulbs to late-summer spires.

Border Builder is a garden border planner for iPhone and iPad. Pick from the 174 plants below and it works them into a full plan: how many of each, where they go, and how the bed reads through the seasons.

174 plants for this

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White-flowering plants Pink-flowering plants Purple-flowering plants Yellow-flowering plants Red-flowering plants Green-flowering plants