Basils are excellent herbs to grow in containers because they add such attractive colors and textures to the plantings. They look good in pots or window boxes in full sun. A container of basil by the back door or on a deck provides easy access for harvesting!
The container should have drainage holes in the bottom or sides. Fill it with a soilless mix, which is more lightweight than garden soil and is also free of diseases and weed seeds. It is easy to provide nutrients all season by incorporating a controlled-release fertilizer in the mix before planting.
With mixed plantings, place most basils near the center of containers or at the ends of window boxes. Use dwarf basils to edge a container planting or on their own in smaller, 8-inch pots, and place the pots around a larger planter, marching up steps, or along a walk. Basils combine well with other herbs and with annuals.
Plant basils at the same level as, or just slightly deeper than, they were growing in their original pots. Water the container well after planting. Keep the plants evenly moist through the growing season; the roots of any plants in a container cannot reach down or out in search of available moisture. Smaller containers will require more frequent watering than large ones. If you plant in a window box, remember that overhanging eaves may prevent rain from reaching the plants.