I get asked all the time about moving flower bulbs so heres the general rules of thumb.
If the bulb is fully grown, in soil, in the pot, then it can be moved at any time. Take it out of the pot and plant it at the same depth as it was in the pot - in other words, the pot soil should be at ground level.
Do not do this if there is a danger of frost and your bulb has been greenhouse grown. It will be "burned" by the frost. Wait until all danger of frost has passed before planting outdoors.
While growing it in the pot, give it full sunshine, feed at least once a week with a houseplant fertilizer and water whenever your finger comes away dry if you touch the soil.
If the bulb is in the garden and you have an insane desire to move it (maybe you're moving and want to take a few hundred tulips along for the ride) then the rules are slightly different.
(By the way, you should check on your legal sales agreement before moving flowers, sometimes you cant. If selling it is always a good idea to have it written into the agreement that you can move plants.)
Tulip 'Beauty of Spring"
You can move spring-blooming flower bulbs immediately after they bloom if you do it 1) carefully and 2) replant them as soon as possible at the same depth as they were in the original planting spot. They wont like it but if you replant at the same depth, they will likely survive. They may sulk for a year (not throw a flower the following spring) but will then recover for subsequent years.
Moving spring bulbs before they bloom is a tricky operation because the bulbs are actively growing buds at this time and theyre usually quicker off the mark than you are.
You can do it but expect to lose more bulbs along with the flowers.
I have moved
just about every plant in my garden out of season at one time or other
and if you do it carefully, without disturbing the roots too much you
can try. Just understand that you may lose spring bulbs this way.
Let me inject a note of honesty here about moving tulips.
In general, it's a waste of time to move a tulip This bulb generally is a short-blooming bulb - 2-3 years in most gardens - so moving it shocks it and you won't get many flowers from them. Not worth the labor in my opinion.
And once a tulip stops blooming, it will not come back.
Zantedeschia RubyLite Rose
Moving flower bulbs like summer flowering lilies (or other summer flowering bulbs) follows the same guidelines. Dig them early enough in the spring. Again, they're not pleased by this but they'll survive and you'll rarely lose a seasons bloom if you get them early.
If actively growing above the ground, it is best to wait until after they finish flowering and the leaves start to fade.
They can be easily moved in the fall when they are dormant.