My test batch was a selection of 96 plants across the range of plant types, with at least one representative from each plant type. The plants were all purple or bright purple, although I do not believe this is relevant to the experiment.
Plants were watered via a water sprinkler and treated with cure/poison sprinklers each day and had the strength sprinkler used every second day.
The costs of each sprinkler, per use, are as follows:
Water = 50,000gp per 1000 uses = 50gp per use
Cure = 150,000gp per 1000 uses + (6x3=18)gp reagents = 168gp per use
Poison = 150,000 per 1000 uses + (4x3=12)gp reagents = 162gp per use
Strength = 100,000 per 1000 uses + (5x3=15)gp reagents = 115gp per use
Note: I buy my reagents the old fashioned way by working the mage shop spawn, if you use the reagent stone in Trinsic, reagent cost will be multiplied by 5 instead of 3.
I then recorded the number of uses on each sprinkler per day. In the last column, for the days that I used the strength sprinkler I have added the cost to the following day, as this is when the effect of the strength potions should impact the need for cure and poison potions.
*forgot to do strength on Day 4.
As you can see, the use of strength potions does reduce the need for cure and poison on the following day, but the cost of using them on every plant cancels out any saving and increases the overall expenditure.
