Do not over water. Let the soil stay dry for 7-10 days before the next watering.
Optional: Using LED grow lights.
Amazon has a huge variety: What I have found which works well: SANSI 24W LED Plant Light Bulb Full Spectrum LED Grow Light $25.99. The bulb fits into a normal light socket but is slightly larger than a normal flood light and may not fit in all hooded fixtures. Some flexible desk lamp fixtures may work.
The fixture I use to hold the light is: LimoStudio 2 Pcs Photography Studio AC Socket Light Stand Mount Umbrella Holder, AGG886. $12.90 “Two”
I place this on top of: Amazon Basics Aluminum Light Photography Tripod Stand - Pack of 2, 2.8 - 6.7 Feet, Black $23.25 “Two”
There are cute short 32 inch light stands: Neewer Mini Set of Two Aluminum Photography Back Light Stands. $19.99 “Two”
You may find a better fixture for your purpose but above is what I found works well for me. There are many LED grow lights, but you will have a hard time finding a light with as much output as this 24 watt Sansi bulb which provides a full spectrum for maximum growth.
The watering requirement will increase, let the soil stay dry for 5 to 7 days before the next watering.
For a massive amount of light I use: Lenofocus LED Grow Light 672LED Full Spectrum Red White Plant Lights. Approximately 105 watts, $85.
Call or email me with any questions: Greg Shaw 206-579-5475 gregshaw@johnlscott.com