when is the best time to transplant a potted hyacinth the directions are when plant stops blooming and all blooms are gone store in cool dry place until the fall then plant the bulbs an I plant when the weather get warmer which I hope is soon. and where should plant them in the sun or shade? Thank you
Once the flower has faded, cut off just that part. Give it a little fertilizer, either now, or when you plant it.
You can plant it out this spring in full sun, but don't expect it to necessarily bloom next year. "Forcing" bulbs to bloom is tiring, and they may wait until they are able to store up enough energy to do it again.