As the days draw shorter and the nights cool down, it’s time to get ready for the fall bulb planting ritual. The best time to plant spring bulbs depends on where you live. Ideally, wait until the soil temperature is below 60°F. As a general guide, plant in September through early October if you live in USDA Hardiness Zones 4 or 5; October to early November in zones 6 or 7; and November to early December in zones 8 and 9. In mild winter regions, you can give the bulbs their required cold treatment by placing them in the refrigerator for 8 to 10 weeks in the fall. Then plant them in late December to early January. Plant a variety of bulbs to extend the flowering season. In addition to daffodils and tulips, include some early-flowering bulbs – such as grape hyacinths, crocuses, snowdrops and scilla – to herald the start of spring. Late-flowering alliums will continue the show...

