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The die-hard gardeners among us are already seeing their planning pay off with an early-summer bounty of asparagus, zucchini, tomatoes, and greens. (You know, like your neighbors who spend all winter browsing seed catalogues, studying the almanac, perfecting their compost pile, and drawing diagrams of their plot.) But if you're just deciding now that you want to try your green thumb at planting, it's not too late: putting hardier vegetables in the ground means you'll be enjoying the fruits of your labor into September
