When planning an herb garden outside, you can start modestly with a few pots on the patio or located on a bakers rack.
Some herbs like sage, thyme and mint are available in different colors, so that you can make an attractive bed in various shades. Construct the bed as close as possible to the house, so you do not neglect to gather the herbs for cooking during wet weather. Whenever possible, grow each type of herb in a separate pockets. You can actually divide the bed into distinct pockets with dwarf hedges of lavender or you can use concrete or stone pavers or stones to add a landscaped design. This way, herbs may easily be reached by footpaths and easily replaced without disturbing other plants that are nearby.
REMEMBER: Keeping plants harvested insures thick and hearty growth.
Since most herbs grow well in full sun to part shade, choose a spot for your garden that gets at least 6 hours of sunlight per day. Make sure there is good drainage and easy accessibility. When planning your garden, take into consideration the height and sizes of herbs; shown below.
Small: 1- 1 1/2 feet or less in diameter and less than 1 foot tall -
Parsley, Chives, Cilantro, Fernleaf Dill (other dills grow to 3' tall), Cuban Basil, Thyme
Medium: 2 feet to 4 feet wide, less than 2 feet tall - Marjoram, Basils (except African Blue), Tarragon, Savory, Thyme, Chocolate Mint and Peppermint
Short but Large: 4-6 feet wide, less than 1 foot tall - Oregano, Spearmint, Orange Mint
Large: 4-6 feet wide and tall - African Blue Basil, Rosemary, Lavenders, Sages, Lemon Verbena, Pineapple Sage, Sweet Bay Laurel (This is actually a tree but it makes a great central point of interest to your herb garden (whether potted or planted in the ground). It grows very slowly but will eventually reach 15-20 feet tall.)