Vermicomposting is not just for large scale outdoor farming.
With the popularity of composting for green living and pesticide free growing it’s no wonder worm castings have become so popular for any form of growing. Worm castings are not only organic, but do not burn roots like some chemical fertilizers which is ideal for indoor and potted plants. Some tests have shown castings have 5 times more Nitrogen, 7 times more phosphate, 11 times more Potash and 3 times more Magnesium.
I have been told one of the best ways to ensure an excellent marijuana harvest is to use earthworm castings on the soil. They say the plants were healthier and produced bigger buds.
You can also make a form of tea, from castings. Simply soak 1 part castings to 3 parts water, let sit 12-24 hours. Stir well and water as usual. Click here for a more detailed recipe. Casting tea is excellent for fruiting, flowering or hard to access potted plants
If you need to give a boost to houseplants whose health is failing, simply re-pot in a blend of worm castings and good potting soil. A 50:50 ratio is perfect, but you can use as little as 25% worm castings. For healthy plants, sprinkle a tablespoon or two of worm castings on the soil surface every other month.