no more hauling water to the patch

I came across this product that will keep your soil moist for up to 90 days. If you bought 3-4 for each plant and installed them you wouldn't have to worry about taking extra trips to your garden during dry spells. It would be perfect for any guerrilla growing and save a lot of labor and only cost about 10 bucks per plant. I 'm not sure how well it would work, What do you think?
Rain Bird Online Store - Irrigation Supplement - 90 day Gel Packs

sounds intruiging, I'll be looking into this product!

do you bury them?

I'm not exactly sure, i think you dig half the carton in.

oops posted wrong link, heres the one i meant to post
Rain Bird Online Store - Irrigation Supplement

its practically the same thing as water polymer crystals. they should be used as reserves, not as a replacement from bringing water to the patch...

yea and dont go over board on them to my understanding they can kind of clog up the roots and stunt there growth