Carol,
There is no "normally" in rooting cuttings because there are quite a number of variables that determine the rate of rooting. Then some Brugs are easier to root than others. The maturity of the branches, what part of the plant they came from, growing conditions, how sterile conditions are, and size of cutting also has a baring on how fast they root. These are just a few things that influence rooting rate.
In water, some will develop little white nubs from which the roots will emerge within a few days while others take several weeks to do so. A few years ago, I was given a bunch of cuttings. Under normal circumstances, I would have put each variety into a separate jar to root (I prefer to get my cuttings to the white nub stage before I plant them into pots.), but I wasn't feeling well so I put them all into the same large bucket and placed the bucket in the shade house. Two weeks later, I remembered the bucket and went out to check the cuttings. The Texas Pink cuttings all had really long roots while the rest had roots 2" or less in length. Some cuttings didn't have any roots yet.
Just be patient and don't overwater the cuttings. When they start to grow, you know they have some roots. However, it will take several months of ideal growing conditions for them to acquire a good and sizable root system.
