Now is the ideal time to spruce up the yard or do a garden on your balcony since after all, you're spending a lot of time there. And  here are all your resources to do it --from nurseries and free zoom gardening classes, to expert tips, a Seed-a-Thon, a top online source for handsome pots and accessories, and even free wildflower seeds. Nurseries and garden stores in Miami-Dade and Broward counties listed are open and following social distancing rules as well as requiring masks while shopping.