They suck!. i used them a long time ago and it was the last. they concentrate the nutes around them and the roots have to strech upwards and sideways. weed likes long and deep roots. fert ur plants with MG i f you have to. i use it with great results.
How will they hurt the plant? I put them in with one of my plants just to see how it would do, but I'll take them back out if it's for-sure going to be a bad thing.
They dont evenly disperse and can burn some roots and not feed others.They dont really have what you need for ganja plants.Here are 2 pics first is of my mommies at day 10 in MG moisture control.They were 1 inch clones that were rooted in cubes for 5 days.Second is at day 28,No feedings just water under 3 florescent shop lights.that 3 4 foot lights with 2 tubes in each so 6 total tunes cost $24 plus 8 bucks for soil
Those sticks and time release soils can really come back to bite you in the end...you just never know what the plants is getting and when it is getting it.
They work great for outdoor gardens, i use them on my strawberry patch and they work great, just follow the directions, no salt residue to deal with and easy to apply.