Hi Mark,
Brugs are heavy feeders, and they need frequent watering. I use fish and seaweed fertilizer weekly, as well as epsom salt once per month. I also periodically give a feed of 1 tbs black strap molasses mixed in one gallon of water along with 1 tbs of the fish and seaweed fertilizer, as a liquid feed and foliar spray.
You can also use a liquid bloom booster fertilizer.
The first pic is from November 2018, from a plant that was started as a cutting in the spring. This was it's 3rd flush of blooms.
We moved this summer, and 2nd and 3rd pics are from plants that were put in the ground in July, and they have since Y'd and already have buds.
I wish you all the best with your plants, and I hope that you get to see some blooms soon!