17 Ridiculously Useful Tips to Make Life Easier Wet newspapers and put layers around the plants overlapping as you go; cover with mulch and forget about weeds. Weeds will get through some gardening plastic; they will not get through wet newspapers.
Growing vegetables from food waste is a great lesson for kids and also makes great science experiments Teach students how to regrow food and pick a food to regrow as a class. Could use a food from a students leftover lunch.
Tomatoes need calcium to achieve their full flavor potential. When planting tomato plants crush up (to powder) about 4 or 5 egg shells and put them in the bottom of the hole. Then plant tomato on top. They'll provide calcium and prevent blossom end rot.