Vermicast is the most versatile of organic fertilizers, you can incorporate it into your garden plan at any time using many delivery methods. Some people simply mix it into the top soil, we recommend at least 1 Litre of castings for 1 metre of garden surface area. You can also spot fertilize by applying 500 mL of castings at the base of each plant, this is especially helpful if your soil structure is sandy and porous. The plant roots will cling on to the humus https://en.wikipedia.org/wiki/Humus in the castings and help keep moisture in the soil.
Another popular application method is of course the famous “Worm Tea”. This too can be as simple or complex as you choose to make it, the easiest way is to combine 1 part vermicast with 5 to 9 parts water and let sit for 10 to 12 hours. If you leave it longer without aeration you will begin to lose the beneficial aerobic bacteria as they need air to live. Lots of folks set up a little brewing area by using aquarium bubblers to aerate the solution for a few days and build up the concentration of bacteria. Be warned however, you will need 2 of the small aerators for a 20 Litre container. The brewing can continue for 48 to 72 hours and the tea should be used immediately, that goes for the 10 hour method too. If the tea is left sitting it will lose that good microbial content.
Take the plunge, no matter how you use vermicast your plants will flourish and your soil structure will improve.