How can I get a start from a lilac bush?

To start a new lilac bush from an existing one, you can take a cutting from a healthy branch in the spring or early summer. Make a clean cut just below a leaf node, remove the lower leaves, and plant the cutting in a pot with well-draining soil. Keep the soil moist and place the pot in a sunny spot. With proper care, the cutting should develop roots and grow into a new lilac bush.