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List of Blue Flowers

veronica image by Alison Bowden from

Grown in every shade imaginable, some blue flowers present their blooms in an electric shade of blue, while other blooms are pale blue for a subtle touch to the garden. Many blue flowers are perennial, meaning they come back year after year fuller and healthier, while others are annual or biennial, only living a short period of time before they die. Nestled along a garden bed or border, blue flowers create a showy landscape presence.

Blue Star

Blue star (Amsonia tabernaemontana) is a perennial flower with pale blue flowers. Growing 2 to 3 feet tall, blue star is a spring-blooming flower that is striking planted among a garden path or front walkway. The clusters of pale blue flowers on the blue star flower open just under 1-inch long. The heads on the blue star flowers consist of five separate, pointed lobes that attach to the slender tube. The narrow, light green lance- to egg-shaped leaves on the blue star flower grow 2 to 4 inches long and have smooth texture. Blue star flowers prefer full sun to partial shade and well-drained and moist soil content. The USDA Hardiness Zone for planting is 3 to 9.

Georgia Blue Veronica

Georgia blue Veronica (Veronica umbrosa "Georgia Blue") is a perennial flower that has sky blue flowers that emerge in spring to last into the summer. Growing less than 6 inches tall and spreading 1 to 3 feet wide, Georgia blue Veronica is an ideal flower for growing in containers or as a ground cover in the garden. Deer- and drought-tolerant, Georgia blue Veronica plants have small, dark green leaves that cast a burgundy color in winter. The masses of flowers attract butterflies to the garden for the quintessential garden fell. Low-maintenance, Georgia blue Veronica tolerates a wide range of growing conditions, including overly moist and dry soil. Georgia blue Veronica prefers full sun to part shade and a medium amount of moisture to thrive. The zone for planting is 6 to 8.

Bluebird Delphinium

Bluebird delphinium (Delphinium "Bluebird") plants have a moderate growth rate and electric blue flowers that grow as an annual or biennial. Growing 3 to 6 feet tall and 1 to 3 feet wide, bluebird delphinium have a clump-like growth habit that is ideal planted as the backdrop to a perennial garden or garden wall. Deer-tolerant, bluebird delphinium flowers grow in clusters along tall, erect stems. The white centers of the bluebird delphinium contrast with the blue blooms for a showy garden display. A butterfly and hummingbird attractant, bluebird delphiniums are a classic summer-blooming flower. Bluebird delphinium flowers prefer full sun only and well-drained, nutrient-laden soil and a medium moisture content. The zone for planting is 3 to 7.

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