Worm towers add worm castings to your garden without a bin. By supplying the proper habitat in your garden, you can put worms to work right in your garden. The worms will feed and grow and enrich you soil with lovely worm castings. To learn about how to build a worm feeding tower right in your garden see the video below:
What Type of Worms?
It's best to use
red wiggler worms
in the towers. These little guys turn organic matter into compost in record time and will benefit garden plants greatly. Worms come into the tower to feed, and go out into the garden spreading their compost (poop) as they go.
How Many Towers?
My garden is 8 ft x 4 ft and 2 or 3 towers seem to be a good number. Since my garden is 32 square feet, figure 1 tower per 10 square feet of garden. On the low side, figure 1 tower per 15 square feet of garden.
Some Pointers for Worm Towers
Overall, worm feeding towers are an easy way to fertilize the garden. The video provides excellent instructions on building the towers. Here are some additional pointers:
Add a handful of mulch over the top of each feeding. This helps reduce fly problems and keep the food from drying out.
Have some sort of plunger ready that will fit into the tower itself. The worms turn the food to compost, which promptly gets stuck in the tower. Plant roots will grow into the towers as well.
When watering the garden, water inside the towers as well.
When the nights get cooler, probably into the 40's or near freezing, it's time to collect the composting worms. Feed the towers as usual. The next day, scoop out the food which will be full of worms. Repeat the process until most of the worms are collected.