Marijuana plants not getting any bigger

A question from a fellow grower:

my plants have been in the ground sense the end of May and they are only knee high. I used descent fertilizer. They are getting full sun and plenty water. I think they should be atleast 5’ by now. What am I doing wrong?

It is very hard to diagnose with the little info you have given us. Here is the ILGM support ticket to get you started.

ILGM Support Tickett

What is the strain?
Indoor or Outdoor?
Size of space?
Soil or Hydro? Medium used?
PH?
Type of nutrients used? PPM levels?
Temperature?
Humidity %?
Light system/watts?
Vegetative Growth season or Bloom/Flower season? Number “weeks/days” from start of veg growth or into flowering?

What is the strain? Swazi Gold
Indoor or Outdoor? Outdoor
Size of space? Huge
Soil or Hydro? Medium used? Soil
PH? Not sure how to test
Type of nutrients used? PPM levels? None used just home made compost
Temperature? Outdoor climate from anywhere between 10° - 28°
Humidity %? Not sure
Light system/watts? Sun
Vegetative Growth season or Bloom/Flower season? Number “weeks/days” from start of veg growth or into flowering? Growth season ftom July/September to December and flower season from Dec - April/May