how thirsty do plants get?

i have a big girl flowering for about 4 weeks now... she is 3ft high at least.

i noticed when i was logging stuff on the calendar that feedings are getting more frequent (last time it took 5 full days for the soil to completely dry, then 4, now 3 ). is this normal? i'm just surprsied because in my last grow i always had to wait 5-6 days to water, right until the end of flowering...but those were much smaller plants

the more roots the more water it needs

as much as it needs. just like people, animals, they'll all take different amounts, and the amounts will vary depending on what they're doing in their life

i start off with watering them with say a liter each. halfway through harvest they'll be wanting almost double this a day

yeah the bigger they get the more they get thirsty. at first when I plant my clones into dirt they could go around a week in between watering then toward the end of flowering
I am watering every 2 days, its like a adults eats more then a newborn baby