perlite....

hey guys, pretty dumb question but i went to lowes today and got everything else that im going to need to set up my grow tent when it finally arrives on friday, according to there tracking thing, anyway...i bought a bag of perlite while i was there because i see people talking about it all the time on here and was wondering what exactly that does and when to add it to my plants? thanks...also, i still have some transfering to do so its not to late if it needs to be done in fresh soil...

It helps prevent water loss and soil compaction and its light weight makes planters lighter. Mix it in with your soil.

Mix the perlite with soil.Like stated from the above poster.It helps with aeration and soil compaction,better drainage.

It holds water. When you have it in your soil and you go to water your plants it helps keep water in the soil longer. It's a good thing if you got it especially if you forget to water the plants they won't hate you too badly.

you could actually grow your plants in nothing but perlite (like a hydro setup), but using nothing but perlite is messy.

"Essentially perlite and vermiculite are used in the horticultural industry because they both provide aeration and drainage, they can retain and hold substantial amounts of water and later release it as needed, they are sterile and free from diseases, they have a fairly neutral pH (especially perlite which is neutral), and they are readily available, non-toxic, safe to use, and relatively inexpensive. As a rule of thumb, perlite tends to last longer, has a more neutral pH, and functions much better in hydroponics, outdoor applications, lawns and gardens (in part because it is stronger). Nevertheless, for decades they both have been used by professionals, dedicated amateurs and gardeners."

http://www.schundler.com/hort.htm

Just in case your wondering...If you are growing in soil and plan on mixing your perlite with it a good mix is 80% soil 20% perlite to 70% soil 30% perlite. Ive also found if you setup a misting water line on a timer clones are rather easy in just perlite. Given you have your misting heads timed correctly

It helps your soil retain water, and stops it compacting - also improving drainage.

awesome, thanks a lot guys

I really like how you aren't sure what it does, or how to use it, but you head it talked about so you got a bag you won't be disappointed in getting it though, perlite is great stuff. All the above info is great, the only thing I would add is that you can play around with different amounts, but if you're looking for a starting point try mixing 2 parts perlite to 3-4 parts soil (I do 3 part soil, 2 part perlite, one part peat).