Larkspur is the flower of the month of July and its meaning denotes fickleness.
Larkspur (Delphinium consolida) belongs to the buttercup family - Ranunculaceae. The colourful Larkspur blooms cover a spectrum from white to blue to violet. Larkspur flowers are irregularly shaped and bloom in a loose, vertical grouping along the upper end of the plant's main stalk. Larkspur is actually a very complex flower consisting of both petals and sepals. Its name derives from the long spur of the upper sepal that encloses the nectar-containing spurs of the two upper petals.
Larkspur, with its tall spikes, make a pretty mid-summer show in a vase but the flowers tend to be fragile and relatively short lived (under 7 days). The Larkspur plant is toxic: the stem and seeds contain alkaloids.
To grow Larkspur, sow the seeds in spring, in the location you want them to grow, as Larkspurs do not like to be transplanted.
If you grow from plants, they should be spaced about 6 to 8 inches apart. Stake tall varieties of Larkspur to prevent the hollow flower stalks from snapping in the wind, and deadhead after flowering to encourage a second flowering. After the first frost, cut the Larkspur's stems back to an inch or two above soil line.
Divide plants every three to four years.