Small and slow-growing herbs look best in containers. Some examples are variegated sage, purple sage, golden sage, parsley, Greek oregano, rosemary, prostrate rosemary, marjoram, bush basil, thyme, chives, and summer savory. Window boxes, strawberry jars, and large pots can accomodate a combination of several herbs and flowers. Care of herbs in containers. Watering is the most difficult part of container gardening.
Plants growing in containers dry out faster than in the ground.
On a hot, sunny day, a container may require water once or twice daily. Of course, the water requirements vary from plant to plant. When the top of the soil feels dry, apply enough water to allow a small amount to come out the drainage holes in the bottom of the container. Since most herbs do not require high fertility, you should not need to fertilize them as much as you would other container-grown plants such as flowers or houseplants. During the growing season, pinch the plants back to keep them bushy and compact and remove any dead or diseased leaves to keep them healthy.