January 31, 2023 Ian Lewitz As wintertime settles more than Wisconsin, the 30th-once-a-year PBS Wisconsin Backyard garden & Landscape Expo provides a bit of spring-like heat to the Alliant Energy Centre in Madison, Feb. 10-12. Event hours are noon to 7 p.m. Friday, Feb. 10 9 a.m. to 6 p.m. Saturday, Feb. 11 and 10 a.m. to 4 p.m. Sunday, Feb. 12. One-day tickets for Backyard garden & Landscape Expo charge $8 in progress and $10 at the doorway. Children 12 and underneath are admitted cost-free. Two-day passes are available for $13 in progress and $15 at the doorway. Three-working day passes are obtainable for $16 in advance and $18…