This perennial species may be treated as an annual since it usually flowers in its first year. Tall thin stems, often more than a meter in height (3ft) are topped with clusters of tiny purple flowers during the summer. Excellent in dry gardens. Good cut flower.
This mat-forming perennial has basal rosettes of dark green leaves and bears cup-shaped, pale blue flowers in terminal racemes in early summer. Height and spread is 18 inches.
Variable, upright perennial with lance-shaped pointed green leaves. Height 4 feet; spread 12 inches. Bears tubular, white flowers in dense, erect terminal racemes in late summer and early autumn. Makes a good cut flower. Excellent border perennial; attractive to butterflies.
This spreading evergreen pernnial produces many slightly scented flowers with violet petals and white markings. Height to 6 inches; spread to 16 inches.
Creeping evergreen perennial with ovate leaves bearing bright yellow, blue-violet or red-violet flowers about an inch across in late spring and early summer. Height and spread is 6 inches.
This semi-evergreen perennial bears sweetly-scented blue or white flowers in early spring. Height to 8 inches; spread 12 inches. Self-seeds freely. Suits a wild or woodland garden.
Bushy evergreen perennial usually grown as an annual. Bears 2-4 inches flowers in blue, white, yellow, orange or purple and are bi-coloured. Height 6-9 inches; spread 12 inches.
This woody-based evergreen perennial produces racemes of tubular scarlet flowers over long periods in late summer and early fall. Height 12 inches; spread 20 inches. Attractive to hummingbirds.
