All Growing Guides

Yellow leaves have 6 causes. Old leaves yellowing = nitrogen. New leaves = iron. Wet soil = overwatering.

Winter indoor gardening needs grow lights and the right varieties. Herbs, lettuce, and microgreens work best. Expect slower growth.

USDA zones indicate the coldest winter temperature in your area. They help you choose perennials that survive winter, but not annuals or planting dates.

Transplant when seedlings have 2-4 sets of true leaves, nights are above 50°F (tender) or 40°F (hardy), and you've hardened them off for 7-10 days.

Zucchini flowers but no fruit when pollination fails. Hand-pollinate or wait for bees. High heat also causes flower drop.