When to Plant Tomatoes: Using Nature’s Cues (Phenology)
Quick Summary: Phenology uses nature’s signals (blooming plants, migrating birds, emerging insects) to determine optimal planting times. For tomatoes in Zone 4-5, wait until Memorial Day regardless of warm spring temperatures. Other cues: plant corn when oak leaves are squirrel-ear sized, potatoes when dandelions bloom, peas at apple blossom time, squash and beans when lilacs …















