When should you start bulbs?

This includes tulips, daffodils, hyacinths, crocus, Dutch iris, and scilla. An extended period of cool temperatures stimulates a biochemical response inside the bulb that “turns on” the embryonic flower so it starts developing. Most bulbs require 16 to 18 weeks of cold before the flower is fully formed.Click to see full answer. Beside this, when should you start bulbs indoors?You can bring some spring-flowering bulbs such as daffodils, crocuses, tulips and hyacinths into indoor bloom during the coldest months. Start your chosen bulbs in early fall, so there’s enough time for them to go through the chilling period needed before they can flower. how can I force my bulbs to bloom early? Gardening Basics For Dummies, 3rd Edition You can force potted bulbs into early bloom, but they still need 8 to 16 weeks to chill (generally the larger the bulb, the longer the chilling time). Place the bulbs in the fridge, in an unheated garage that doesn’t freeze, on chilly basement stairs, or in a cold frame. Also Know, when should you force a bulb? When roots have developed and leaves begin to grow, it’s time to move the bulb into a bright window in a cool room (one where the temperatures stay below 65°F). Bulbs forced in water can be planted in the garden after the threat of hard frost has passed, but they won’t bloom well again for at least two years – if ever.Will forced bulbs bloom again?Container plants that have been previously forced into bloom cannot be forced again; however, you can plant bulbs in the garden. If you plan to replant these forced bulbs outdoors, sprinkle a small amount of bulb boosting fertilizer on top of the soil, as most will not flower well again without some help.