There are over 30 species of lavender (Lavandula), a flowering herb, related to rosemary and thyme. Lavender prefers a Mediterranean climate and blooms in the summer with soft purple flowers, prized for their long-lasting fragrance. When purchasing new lavender plants, make sure they are well-rooted and not plugs that were recently stuck into the nursery pot, suggests Dr. Curtis E. Beus, Washington State University Extension director.
Plant the lavender in an area of the garden that receives full sun and has a low humidity level. If planting in a humid area, space the plants further apart.
Amend the soil in the lavender bed with 3 inches of sand and 3 inches of loam. Mix the amendments to a depth of 8 inches, using a gardening fork.
Dig planting holes for the lavender plants that are the same depth and twice the width of the nursery pot in which they are growing. When planting more than one lavender plant, space the holes 3 feet apart.
Remove the lavender from the pot and place the roots in the hole. Pour water into the hole, and when it drains, fill the hole with soil. Press lightly on the soil around the base of the plant. This will remove air pockets from the soil and ensure that the lavender plant is stuck in the soil.
Maintain moist soil while the plant is young. Never use an overhead watering method on lavender plants, as this can cause the soil to wash away from the young plant's roots and make it difficult for them to stick in the ground. A soaker hose or other type of drip irrigation is ideal.