How to Propagate Basil - cut 3-4 inch cuttings right below a leaf node. Remove leaves on the lower 2". Place cuttings in glass of water on a bright, sunny (not hot) window sill. Be carefully, adding water to keep stems immersed. Change the water every other day. In 5-7 days you will begin to see some tiny white roots forming.
Let's Get Sowing! Tips for Growing the Edible Garden ~ Lovely Greens. If you only have a small area in which to grow veggies, you might want to consider Square Foot Gardening. Using this method, it's possible to grow an astonishing amount of veggies in a small space using rich compost, raised beds, and a square foot planting guide like the one above from Garden Therapy and Atlantis Hydroponics.