... Egg Shells
The sharp edges of egg shells are reputed to deter slugs and snails
Egg shells seem effective in preventing blossom rot
in tomatoes melons etc. Fertilizer with calcium performs similarly. If a problem previously, I would recommend working some finely crushed into soil around plants and some coarser around plant.
... Coffee Grounds
Coffee grounds are rich in nutrients but are acidic
. Good for plants that like acid soil, Roses etc. ? Repeated rinsing removes most acid but supplementing with lime might be recommended.
Found listing of
Most vegetables grow best in a neutral or near-neutral soil pH, although they’ll tolerate slightly acidic soil. A few vegetables, though, actually prefer acidic soil. If you’ve got soil with a low pH, you’ll definitely want to plant these crops, which include:
. These fast-growing root crops thrive in soil with a pH between 4.5 and 5.5. Plant them in early spring or fall and give them full sun, consistent water, and well-draining soil. Harvest them when they’re young, because larger radishes become woody and hot.
. These flavorful tubers are loaded with vitamin A. They grow best in soil with a pH between 4.5 and 5.5. Sweet potatoes need a long growing season and are difficult to grow in the north. If you live in a mild climate, though, you should have success.
. Parsley is a fast-growing annual herb that tolerates soil pH between 5.5 and 6.5. You can buy nursery transplants, but it grows quickly from seed. Plant it after the last frost in full sun and cover it with a light dusting of soil. Keep the soil consistently moist. In frost-free areas, you can grow parsley almost year-round.
. Peppers, including bell peppers and chili peppers, prefer a soil pH between 5.5 and 6.5. Related to tomatoes, they have similar growing requirements, including full sun, consistent moisture, and rich, well-draining soil. Plant them after the last frost.
. Potatoes adapt to more alkaline soils – after all, they’re one of the main crops grown in southern Idaho, which is known for its alkaline soil – but they prefer a soil pH between 4.8 and 5.5. Plant them in early spring from certified disease-free seed potatoes.
. Rhubarb is generally used as a fruit in jams and pies, but it is technically a vegetable. This perennial vegetable grows best in soil with a pH between 5.5 and 6.5. Plant it in full sun at the edge of the garden where it can grow for many years."
Article link: 25 Fruits And Vegetables To Grow In Acidic Soil
Wow, Radishes will get a dose! Might have enough to help Potatoes ...