James Neiss/staff photographerSanborn, NY - Spring is in full swing inside the greenhouses at H.A. Treichler & Sons on Saunders Settlement Road as Casey Treichler, left, and Greg House hang baskets of New Guinea Impatiens over top hundreds of multicolored spreading Wave Petunia’s in pink baskets. CO-owner Terry Treichler, said the greenhouses will be open for the spring season beginning April 20, with thousands of baskets filled with a variety of flowering plants.