I added half a miracle grow plant food stick (6-12-6) and an LED light from Amazon (Lighting schedule is six hrs/day plus natural light from the east facing window)
The leaves are greener and the leaves that used to be yellow or now perkier with a bit more color. It’s only been 4 days since adding the light. My other plants have also benefited from the light.
Light: Lovebay Timing Function Dual Head... https://www.amazon.com/dp/B074GR1KRT?ref=ppx_pop_mob_ap_share
Remove the rocks and anything glued. Get a (small) grow light on Amazon or wherever can find one (I leave mine on for 12 hrs. Keep in the warmest room in the house and lightly spray it with water once a day but watch for fungus. https://www.amazon.com/dp/B074GR1KRT/ref=cm_sw_r_cp_apa_i_zppyCbS4P977K
I use this:
Lovebay Timing Function Dual Head Grow Light https://www.amazon.com/dp/B074GR1KRT/ref=cm_sw_r_cp_apa_i_HNw4Cb83S2GBY
I like that I can set it as a timer, and it will auto shut off in the morning in case I forget (I turn it on at night because I don't like the color during the day). I also like that there are two heads, which I face in slightly different directions to reach all my plants. Currently, 8 plants are using this on a shelf where one light gets the ones that are high, and the other gets the ones that are low. Works well for me!
Lovebay Timing Function Dual head Grow light 36LED 5 Dimmable Levels Grow Lamp Bulbs with Adjustable 360 Degree Gooseneck for Indoor Plants Hydroponics Greenhouse Gardening [2017 Upgraded] https://www.amazon.com/dp/B074GR1KRT/ref=cm_sw_r_cp_api_zQwAAb2DZB0M5
Not cannabis, but I have some pitcher plants that had to come inside for the winter. I've had fantastic success with them on a windowsill supplemented with this light.
Nothing fancy, but light + window should keep the cannabis plant healthy until it can be transplanted outside when it's warmer.
Lovebay Timing Function Dual Head... https://www.amazon.com/dp/B074GR1KRT?ref=ppx_pop_mob_ap_share
Thank you for the advice. Most of my guys rest under one of these
Lovebay Timing Function Dual Head Grow Light 36LED 5 Dimmable Levels Grow Lamp Bulbs with Adjustable 360 Degree Gooseneck for Indoor Plants Hydroponics Greenhouse Gardening [2018 Upgraded] https://www.amazon.com/dp/B074GR1KRT/ref=cm_sw_r_other_apa_i_75coCb1YR010M
Until I make my way to buying or building some kind of shelf to house all of my dudes and one of these..
Hydroplanet T5 4ft 8lamp Fluorescent Ho Bulbs Included for Indoor Horticulture Gardening T5 Grow Lights Fixtures (8 Lamp, 4ft) https://www.amazon.com/dp/B019J3UPUS/ref=cm_sw_r_cp_apa_i_FedoCbHTN56ZQ
And swap out 2 or three of the 6500K bulbs for 3000K bulbs for flowering.
If your plants can't get sufficient light indoors you will need actual grow lights. Try something like this, I've used these for overwintering peppers with success.
https://www.amazon.com/dp/B074GR1KRT/ref=cm_sw_r_other_apa_c7pUBbEC87M8N
The roots appear to be fine, but the soil looks like it has way too much organic matter which can cause the soil to retain moisture longer, especially towards the center of the pot where the roots are. The plastic pot also promotes moisture retention and mold in the long run. The soil can be dry an inch down or more and the center can still be wet.
Here's what I recommend (amend as you wish):
Obtain a cacti soil mix that is at least 30% to 40% pumice (perlite is fine, but is oft loaded with chemicals/fertilizers that succulents do not need) and has a short list of ingredients, which includes sand. Avoid cacti potting mixes with long lists of ingredients, especially ones that include or has moss as one of the main ingredients (promotes water retention). Avoid Mirical Gro Cacti Mix, too rich for potted succulents (best used in landscaping). There are many solid brands out there, but I use E.B. Stone's Cactus Potting Mix since it meets the noted requirements and it's around 5 to 6 US dollars at most home improvement stores. I like adding extra pumice to the mix, but is not required. I just like a grittier soil mix.
Repot in a terracotta pot with drainage (haven't seen one yet with out a drain hole). Terracotta is porous, helping to prevent mold in and on soil. It also helps to draw out moisture, assisting in the dry-out process.
More oft than not, watering more than once every two weeks or prior to complete soil dry out can facilitate over-watering, mold and root rot. However, depending on home environment, local climate, pot size (small pots can dry out in a week where as larger pots may take up to 2 weeks or a month), pot type (i.e. a glazed clay/terracotta pot will dry out twice as fast as a glazed pot or plastic pot), plant type and so on, watering adjustments may vary from pot to pot. Sometimes, the rule of thumb does not work. Instead of watering by time line, look for visual cues. Look at all of your plants on a daily basis for 5 seconds each. Give them a good once over and touch the underside of bottom leaves for firmness. A pot with bone dry soil does not necessarily need water. Are the leaves firm and wrinkle free? Don't water. Is that a bit of wrinkling, puckering I see (usually on the bottom leaves)? The wrinkling leaf doesn't feel firm and the soil is completely dry. The pot feels feather light when I pick it up. Time to water!
Remember Giant Jewels go dormant during summer, so water less around that time of year and keep it out of direct sunlight (summer sun can scorch it). As long as the sun isn't scotching hot, this plant should see around 6 hours of direct light daily to develop purple and pink coloring and maintain condense growth. Failing that, I recommend a grow light. Affordable ones range from 10 to 30 US dollars. I use two myself to great success, but nothing beats the coloring of sun stressed succulents.
If you intend to repot, rinse off all the soil from the roots and allow it to air dry for a day or two before repotting. When you do repot, don't water for a week or so. Allow the plant to situate. During this time, leaves will drop (the yellowing ones). That's fine and normal. I'll be honest, many of the leaves look pretty far gone, but there are a few that seem okay. You just need a few good leaves to help promote with new, healthy growth.
When you water, I recommend soaking it in a basin of water. The water should reach just short of the edge of the pot, but do not allow it to spill over. Let the water saturate the soil for 30 minutes to an hour. Then, place it somewhere to fully drain for an hour. This is the method I use, but there are other methods out there, however, this watering style has worked best for me.
Hope that wasn't too much info and that it helped.
Good luck.