who said 18-24 inches? i don't think so...you said you haven't grown anyway, there are a few kinds of lowryder, but the ones you can buy on my links def. grow smaller. but ya if you grow in bad conditions you will only get so many grams.

IF YOU WOULD'VE READ...

Lowryder females usually grow no taller than 16-20 inches. 12-16 inches is typical. Light intensity, pot size, and proper pH all play an important role in determining the size of plants at maturity â?? the better the conditions, the bigger the yield. Plants produce one main cola, although when they receive adequate light, lower nodes branch out profusely.

Yield and height are dependent on obvious growth factors. For example, plants kept in small peat cups on a windowsill may yield as little as 1 g. and grow no taller than 6 inches, with no branching whatsoever; while a plant in a 4-gallon container under high-intensity lighting and good cultivation methods, can turn into a profusely branched, two-foot wide 45-gram bud monster.