Q.solanum blue
I would like to know “how to pinch” the above plant to help it grow. I’m not sure where exactly to do this.
I recommend that you check out the following article on pinching plants:
https://www.gardeningknowhow.com/garden-how-to/info/pinching-plant.htm
Basically, you will want to pinch the stem as close to above the leaf nodes as possible. The following photograph will illustrate what this exactly means:
https://bit.ly/1QYom6K
For more information on solanum blue, please visit the following link:
https://www.gardeningknowhow.com/ornamental/shrubs/potato-bush/potato-bush-information.htm