Worm castings can be used for:
1.) mixing with potting soil, creating a great environment for germinating seeds; use about 20 - 30% castings to sand.
2.) use as a soil conditioner (they release slowly over time) by placing equal layers of soil and castings in a container or flower bed; water and plant.
3.) use as fertilizer; sprinkle the castings over the base of plants, dig into the soil, and water.
4.) worm castings can be mixed with water to make WORM TEA and then sprayed on plant leaves or added to soil; to make worm tea, add a couple large handfuls of worm castings into the center of a piece of burlap or muslin. Tie it closed and submerse into a bucket of water. Let it sit overnight, then pull it out, drain, and use the water as your WORM TEA. The leftover castings are still beneficial to the garden, although some of the nutrients have been leached out into the water. Use both the tea and remaining castings to enrich your garden.
So, out to the sidewalks during a warm rain, or set to work digging in the yard. Find all those worms and put them in your garden to make castings! Some people compost indoors using special containers that use worms to eat table scraps and compost -- that's a great way to make castings. If you can't find enough worms, watch for signs along the roadway. Sometimes fishermen sell worms from home. Or check with your closest fishing supply shop. They sell worms by the dozen. Worm tea will do wonders for your garden!
*The iris in the photos are miniatures that I brought home from my mom's garden when we sold her home. They were quickly planted in pots and have been there ever since. They make such a beautiful bouquet for the back porch when they are in bloom! I suppose it is time to divide them and plant some of them in an outside flower bed.