+22 Amount Of Worm Castings To Add To Raised Garden Bed References. To do this, mix in a generous amount of worm castings into your raised bed soil mixes before planting, or apply as a top dressing throughout the growing season. They will add organic matter, nutrients and soil bacteria.
Add to a potting mix the properties of worm castings mean they are ideal in a potting mix. I then carefully put the plant in the hole and push the soil around the plant. Indoor plants if you have some indoor plants (both potted and indoor garden beds), then you may also use some worm.
