Introduction For gardeners in cooler regions, planting spring bulbs is almost effortless: tuck tulips, daffodils, or hyacinths into the soil in autumn, let winter’s chill do its work, and wait for the explosion of color in spring. But for those of us living in warm climates, the story is different. Without a natural cold season, bulbs like tulips and hyacinths won’t bloom reliably unless we give them a little help. That’s where pre-chilling bulbs come in—a simple but transformative technique that allows gardeners in zones 8–11 (and beyond) to enjoy the same dazzling spring displays as their northern counterparts. In…