Question
I just brought some p.p.p that were in a closed container with a lid on it. i just wanted know how big will they grow and how long do they have to stay in the container?

Answer
Hello Bill,

Purple Pitcher Plants can grow up to about a foot or more in diameter and up to about 6 inches or so inches tall.

Since the supplier has them in containers with humidity domes (generally a bad idea), you will need to slowly adapt the plants to low humidity. You can adapt a plant to low humidity by gradually opening the domes a fraction of an inch on one side and bracing the dome up. Every three days, open the dome even more and even lift the the other sides and brace them up. After about 2 weeks the plants should be better adapted to the humidity in your area. You can also just punch some 1/4 inch holes in the domes every 3 days. About half a dozen holes every three days will gradually lower the humidity in the dome until the dome is so full of holes it no longer holds in humidity. After two or so weeks, remove the domes.

I tend to avoid places that sell carnivorous plants under domes and with crazy instructions about high humidity and feeding.

If the instructions with these plants did not indicate anything about the pitcher fluid, this is the one and only case in which water should be poured in the pitchers to promote insect capture and nitrogen procurement. Purple Pitcher Plants rely more on rain water to fill their pitchers as seen in the pitcher structure that lacks lids over the pitcher openings.

Christopher