Getting better yields from small plants

Sorry for the confusion everyone, but the plant is an autoflower so, unfortunately, there is no re-veg option available. I agree with @JUNGLE_B4RNS , there is not much that can be done now. It's best to let this one be as is and prepare better for the next plant. I'll definitely be looking into Mycorrhiza and Rhizobacter as a way to boost root growth early.

You grow outdoors so you can do nothing about it let her bloom next time start with the growth way early around spring when the warmer period starts to kick off mid-may or something Well right now what you can do if you have indoors to place her in a tent with 16+ hours of lights on and do the re-veg then when you ready switch to +10h of night to start with her bloom If you don't have a tent just let her be 🍻

Hey friend, I read in your diary that your plant is photoperiod and you're growing outdoors. With that information, I can assume you germinated your seed during the flowering season. Your plant will stretch a bit more. If you want to revert the flowering stage to a vegetative stage, you just need to put a light over your plant with a photoperiod of 18 hours of light and 6 hours of darkness. But this is a process that will delay your harvest date. If you don't have that time, keep in mind your pH and EC should be in the right ranges for the best possible yield.

The reason for her small stature is her short genetics, a transplant from a 2L pot to a 9L pot, and 2 sessions of LST. I feed her 524NPK twice a week in small doses and will switch to Bloom nutes later this week. This is more of a test grow to learn and I'd be happy to reach a goal of 15-20grams of dry bud if possible.