Tender lettuces and their perfect pairings - radishes, peas, carrots, beets, spinach, scallions and broccoli - love sunny, cool weather. Planted now, many will be ready for harvest in time for Thanksgiving. If you’re a gourmet cook, grow some restaurant favorites from seeds, like colorful mesclun mixes (www.reneesgarden.com), jewel-toned Chioggia beets and micro-greens (www.botanicalinterests.com), or purple carrots and orange cauliflower (www.johnnyseeds.com). In general, start seeds earlier in the season than starter plants from nurseries. A detailed vegetable planting guide is under “Resources” at www.mastergardenerssandiego.org.