Want it? You can't have it. At least not yet. iStockphoto.com hide caption itoggle caption iStockphoto.com The Salt Spring May Have Sprung, But Most Gardens Are Still Slumbering March 21, 2013 Spring has sprung, but in most parts of the country, just-picked vegetables are still months away. In northern Minnesota, growers are experimenting with solar soil-warming techniques to coax spring to appear earlier.