Agreed on this... would go with castings, and if you need to aerate the soil, or it's too compacted/not proper.. cut it with perlite - will help with drainage too.Worms take time to produce castings. You have to feed them. The addition of food for the worms will produce heat as it decays. Heat that you don't want. Buy a bag or red worms and give it time for them to compost. There are many good threads here about vermicomposting. read them and you'll find the info you need. When I added my own worm castings to my soil, I didn't realize that there where still some worms in the mix. They just died. It was stinky. Lucky it was not enough to hurt my plants, but the worms would have been much more beneficial composting more foe me to add later.
everything nullis said- spot on.
worms in pots that require a wet/dry cycle don't mix. if you do a grow bed it might work, or huge pots. but herb likes a solid wet/dry cycle in the root zone.
i would keep the vermicasting outside of the pots, and use the castings.
They might inadvertently sheer off a few microscopic root hairs in their travel, but they don't eat things that need chewing (like roots) because earthworms don't have teeth. They'll clean up your decayed roots after they rot if you're doing no-till and not disturbing the soil. That's a good thing because the extra processing by the worms speeds up their decomposition and mineralization process. Worms love a good thick organic mulch over the soil to keep it moist. Most of the baby worms in my grow are always hanging out just under the hay mulch the the upper humus layer underneath. The mulch also helps with the wet/dry cycle issue by keeping the upper soil horizon moist with lots of microbial activity going on, recycling organic material back into nutes that feed my plants.I was reading somthing that said if the pot is too small or there are a bunch of worms not getting fed they'll eat your roots ? Opinions ?
I've used live worms since going organic, if you grow no till the worms consume the old plant however they will eat live roots of young seedlings so I start them in seedling mix and only transplant to my no till pot once the plant has a good root system on her after about 4/5 plants I do have to either rest the pot a few month let it dry right out so a lot of the bigger worms die or till riddle with a fine riddle and use the worms in a new pot or chuck in the compost heap, even when I riddle the eggs make it thru if I neglect to do this the population can become to dense and they start to consume nutes the plant needs as well as making the medium nitrogen toxic via too much poop!A couple worms isn't going to result in any kind of benefit, and they need to be an earthworm species which is more tolerant of various conditions including captivity in shallow containers (such as the red worm). Your soil mix needs to be prepared properly for them; a well draining, absorbent and airy medium is required. Coco coir, sphagnum peat moss and humus are examples of good amendments. Your mix also needs to include organic matter for them to consume, and pulverized kitchen and garden wastes can be added periodically (things like coffee grounds, tea bags, fruit/veg peels/scraps, eggshells, fan leaves and waste from the previous crop). The body of an earthworm contains a great deal of moisture, and the environment needs to be kept very moist as well.
I haven't been able to include earthworms themselves in my grows yet, although I have been interested in doing so and would like to hear from growers that do. The moisture issue would be my primary concern as you cannot let the medium dry out to any extent or the worms will probably die. You would have to water constantly, or perhaps rig up some drip irrigation. I assume that keeping the medium moist at all times is exceptable due to the presence of the earthworms and their promotion of the soil structure.
Worms will live fine in a pot. They must always have a moist place (not soaking wet), and food. Worm's can't really digest lignin and things with dry hard cellulose. Bacteria need to break it down some first. That would happen continuously where your mulch layer meets the ground if environmental conditions aren't radically out of whack. I've had worms in my indoor soil for more than 3 years now without adding more. They have multiplied and it still freaks me out how many there must be in there today years later. LolJumped on this red wiggler thing for the idea of just having worms in my pots keeping the soil happy. Do they feed off the dry amendments added to the soil or is something like dropped leaves and/or clipped cover crop enough for them to survive off of? I recently did my (scheduled) final top dressing for this grow and one of the pots I dragged 3 worms to the top by accident rubbing the dry amendments into the soil. They were convulsing pretty bad like they didn't like the top dressing. They died. Was it the violent uprooting of them that did it or maybe a huge pH swing from the soil and the dry amendments?