Removing the brown layer doesn't matter. If the bulbs are small and in
clusters you will get clusters of small plants next year, with small
flowers. Standard advice is to separate the clusters and plant each bulb by
itself with lots of growing room so that it can grow and the flowers will be
a good size. The bulbs will not grow any more this summer, so whatever size
they are now will determine the size of flower you will get next year, but
giving them growing room will let them grow for the year after, if you are
in a climate where tulips survive (not too warm). Keep the bulbs dry and
out of the ground until normal tulip planting time in your area then plant
them. Plant only the large ones if you want only large flowers next year.
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