What to Start Indoors in March March in Ontario always feels like the unofficial start of gardening season. The snow is melting, the sun sticks around a little longer, and every gardener starts thinking: “What can I plant right now?” While it’s still too cold to plant outdoors, March is PERFECT for starting seeds indoors using trays and grow lights. Starting early gives you stronger plants, earlier harvests, and way more variety than anything you’ll […]