Lavender essential oil can be diluted in vegetable oil for topical applications, but avoid the synthetic versions because they are said to be less effective. Do not take lavender essential oil internally. In the Garden I've had good luck with lavender in my Colorado garden. I've purchased plants from a nursery in the spring, planted them in my garden and watched them develop into bushy plants bursting with flowers by the second year. If you want to try starting some plants from seeds, sow indoors about 12 weeks before the last expected frost.
Germination rates can be low, so plant extra.
A full-sun location will be perfect. Space plants at least 18 inches apart. Depending on variety and conditions, lavender plants will grow 15 to 30 inches tall. Lavender is a perennial with woody, upright stems and narrow gray-green leaves. F. A little mulch around the plants in the fall can help them through winter cold snaps.