but its just miracle grow soil.
I would HIGHLY advise you to transplant those plants into a different potting soil mix. Miracle Gro does not have the properly formulated nutrient balance to support cannabis in the different stages of growth. You can read more about that
(linked here).
What I've used for my soil grow was
Fox Farm Ocean Forest for veg, and
Fox Farm Strawberry Fields for flower. I just kept up-potting during veg, then did one final up-pot to flower.
There are one of two different ways I would recommend to salvage these plants. Either find a nutrient supplement to feed them with, which there are a lot of varieties to choose from and you won't need much to feed the soil. However you're going to have to constantly keep a close watch on those plants and figure out how to "dial in" the properly balanced feed. This can be challenging and is a little more advanced for beginner growers.
Or... my preferred recommendation.
Have another pot ready to transplant into with some
Fox Farm Ocean Forest potting soil mix. Pull the plants out of their containers and gently remove the soil from the root ball by massaging the root ball until the soil falls away. You don't have to remove all of the soil, just enough to expose the roots to the new soil. Then plant into the new pot with the
Fox Farm Ocean Forest and give it a good drink. You can also add some beneficial bacteria by feeding some
Fish Sh!t from
Fish Head Farms. Also, while transplanting, you can inoculate the roots with mycorrhizae using a mycorrhiza powder (like
Mykos from
Xtreme Gardening) that you can "dust" the roots with before putting into the new potting soil.
Sorry buddy, but I just don't predict a very successful outcome for these plants if you keep them in the Miracle Gro.