The illuminated trail is expected to attract thousands of visitors in the afternoons and evenings to what is known as Riverside Gardens througout the festive season.
The trail is open every day until 6 January (closed Christmas Day and Boxing Day). The lights are on from 3pm until one hour before the garden centre closes.
Webbs executive chairman Ed Webb said: "The gardens draw the crowds all year to admire the design and planting, and this illuminated trail gives visitors a chance to see everything in a festive light. It really is a magical sight."
Webbs also has a Christmas Grotto and open air real ice rink this year.