4. Vinegar as weed killer
Most organic gardeners do not like to use herbicides in their garden, but they may have second thoughts when their gardens are run over by weeds. Vinegar is an environment-friendly alternative to chemical weed killers.
Pour some vinegar into a spray bottle and drench the weeds with it. Do this on a hot, sunny day for best results. The acid will scorch the weeds and kill them in a few days. Water the area afterward to remove excess acidity or sprinkle baking soda on soil to neutralize it.
5. Add oyster shells and eggshells to your garden beds
Crushed shells of oysters and eggs make slow-release fertilizers that will keep your garden soil sweet and healthy. Crush them with a rolling pin to make the pieces as small as you can. The calcium carbonate in the shells makes the soil alkaline, so use it around plants that love alkaline soil.
6. Adjust pH with wood ash and coffee grounds
When you grow different types of plants in your garden, their pH needs may vary. Large-scale soil amendments should be aimed at bringing the pH to as closer to neutral, but spot treatments can be used to keep individual plants happy.
Wood ash from wood burning stoves and fireplaces can alkalinize the soil in your asparagus patch and vegetable beds growing broccoli, beans, and beet. Coffee grounds can be used around ericaceous plants like roses, azaleas, and rhododendrons.
To promote plant health:
7. Play music for your plants
If you have been talking to your plants, as every conscientious gardener should, you can step it up with a bit of music. Several plant biologists who have studied the effect of music on plant growth have come up with predictable results. Plants show their affinity to music by putting out better growth. And, if the experiments by Dorothy Retallack are anything to go by, they even lean towards the speakers that play the kind of music they like.
As far as likes and dislikes, it has been observed that plants prefer classical music to country music; they love jazz, but hate rock. Well, whether you believe it or not, DeMorgenzon vineyard in South Africa plays baroque music and Paradiso di Frassina in Tuscany Italy plays selected classical pieces to their grapevines to aid their growth and maturity.