Browse Plants

This variety has fragrant, deep blue, cornucopia-shaped flowers carried tightly on red stems above 6-inch tall, blue-green foliage. It is considered one of the best blue forms for color and performance.

This fragrant, blue-flowered species is more vigorous and heat tolerant than the blue cultivars. It blooms from late spring to early summer, and its foliage persists throughout the season with adequate moisture.

(1 user review)

From late spring to summer, this species produces clusters of brilliant blue flowers over ferny foliage. It is the parent of many of the rapidly expanding selection of choice blue cultivars.

The first of the coveted blue corydalises to be introduced, it produces fragrant clusters of long-spurred, azure flowers on a compact plant. 

This is one of the coveted blue corydalises. It produces whorled clusters of sky-blue flowers on 18-inch tall plants. 

This choice corydalis produces fragrant clusters of periwinkle-blue flowers and ferny foliage infused with purple hues. It is similar to 'Blue Panda,' yet is slower to spread and blooms more reliably during the summer.

This species produces copious purplish-blue flowers in spring and fall. It has light green ferny leaves with a mid-rib of silver.

‘Halycon’ is a wonderful blue hosta that holds its strong leaf color all season. Its textured, blue-green leaves are thick enough to be slug resistant. Bell-shaped, pale lilac flowers are followed by seed heads that attract birds late in the season. 'Halcyon' grows fairly slowly. It can be used as either a ground cover or a specimen plant. -Jane Hutson, Regional Picks: Midwest, Fine Gardening issue# 127

This cultivar is a clump-forming perennial with toothed gray-green leaves and larger flowers than the hybrid. It flowers profusely and long, especially if sheared. The blue-purple flowers are small but abundant, and the foliage is aromatic.

This is a very fragrant native woodland phlox with powder-blue flowers in spring. Reaching only 1 foot tall, it can spread to almost 2 feet and makes an attractive groundcover under shrubs or planted with other spring-blooming wildflowers. Leaves are semi-evergreen and hairy; stems root along their length. The blue flowers are salverform with petal lobes. This plant attracts hummingbirds and butterflies.

This spreading, semi-evergreen perennial has hairy leaves and lavender-blue to pale violet and white flowers borne in open clusters in early spring. Flowers can have notched or unnotched petal lobes. Cultivars include ‘Clouds of Perfume’ with light lavender-blue flowers; ‘Eco Texas Purple’ (dark purple with a violet eye); ‘Fuller’s White’ (white); and ‘London Grove’ (lavender-blue flowers).

A hardy, fast-growing evergreen shrub, creeping rosemary has a prostrate habit and attractive flowers and fragrance. Dark green leaves, to 2 inches long, are rich in aromatic oils and commonly used as a culinary herb. This plant is loved for its strong pinelike flavor and fragrance.

(1 user review)

This drought-tolerant perennial bears abundant pure blue flower spikes in early summer and until fall if spent flowers are removed promptly. It forms an erect clump 20 inches tall by 18 inches wide, with wrinkled, softly hairy leaves.

(5 user reviews)

This drought-tolerant perennial is noted for its vivid indigo flowers along deep purple-black stems, which gives it a bicolor appearance. It blooms in early summer and then sporadically if spent flowers are deadheaded. It forms an upright clump, with the flower spikes rising to 2 feet in height; its wrinkled, softly hairy leaves form a mound 1 foot high. Plants spread 1 or 2 feet wide. These are some of the showiest plants for containers and mixed borders. Butterflies love them. 

This prolific cultivar has dark green foliage and bears nodding blue flowers from mauve buds. It grows to a compact height of 18 inches tall. It may become invasive and difficult to eradicate once established.