Answer: Tiger lily is a distinct bulb, possibly having multiplied into a clump of bulbs surrounding the parent bulb, but all centrally located in a close group. If you dig down within about six or eight inches of the emerging stem, and about nine to twelve inches down, you should bring up the bulb(s) roots and all along with a good soil mass. Transplant the entire root ball or carefully separate the bulbs. You will have better luck not disturbing this year's blooms if you do not divide them in the spring but instead transplant entire clumps. If the lilies have grown into a solid mass planting, you may have better luck using a garden fork to gently pry up hunks or "sods" for transplanting, or waiting until fall and gently digging and separating the bare bulbs for immediate replanting.
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