When can bulbs be brought out of cold storage?
Bulbs are okay to bring out of cold storage as soon as they have filled the pots with roots. This typically takes six weeks or so. About this time, you can check root growth by lifting out one pot. Slide the root-ball of earth out of the pot. The lower surface of the ball should now be covered with roots and the bulb ready for forcing. But pots can stay in cold storage, if you like, after roots are formed. The plants will not make much top growth until they’re brought indoors. You can plant several bulbs at the same time and still get a succession of bloom. After roots are formed, bring the pots indoors one or two at a time at ten- to fourteen-day intervals.
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