Q.Magnolia blooms
I have a new magnolia tree with white blooms starting, at the tip of blooms are brown. And have not opened it has been two weeks since the first bloom appeared. Is this normal there are around 15 blooms on this 4 1/2 ft. tree. Was so excited that it was going to bloom. What can I do?

A number of problems are potential culprits when magnolia buds (either for flowers or for leaves) are not opening. One possibility is that thrips are attacking your magnolia buds. But weather comes to mind, first and foremost, as a possible reason for the failure. What kind of spring weather did you this year? Magnolia buds can rot during extended periods of such weather, and once rot sets in, the buds will not open.
This article will help you.
https://www.gardeningknowhow.com/ornamental/trees/magnolia/magnolia-blooms-not-opening.htm