Welcome to Christmas Tree Lane!

Every winter, nearly a mile of towering deodar cedar trees along Santa Rosa Avenue – known as Christmas Tree Lane – comes alive with thousands of glowing lights. This historic stretch is the oldest large-scale outdoor Christmas lighting display in the United States and a beloved part of Altadena’s identity. Behind the scenes, the all-volunteer Christmas Tree Lane Association (CTLA) makes the magic happen. For over a century, CTLA has been responsible for lighting the Lane, maintaining the trees, and keeping this treasured tradition alive through community donations, sponsorships, and countless volunteer hours.

Christmas Tree Lane doesn’t light itself. Behind the glow is a year-round effort by the all-volunteer Christmas Tree Lane Association (CTLA), stringing lights, maintaining the trees, covering utility costs, and organizing community events.

With no city funding, the Lane survives entirely through donations, sponsorships, and the helping hands of local volunteers.

We’re grateful to the individuals, businesses, and organizations who help make this possible.