But this is only true for unwashed coffee grounds. Roses (and azaleas and rhododendrons) do prefer acidic soil, but too much acid will kill microorganisms and harm your plants. They also act like a mini compost for the soil. Eggshells are a good source of calcium - wash them out well. Coffee grounds are considered organic fertilizer and environmentally responsible.

Fortunately used coffee grounds are often only slightly acidic and when used they can help to create the ideal soil conditions roses love. A common misconception about coffee grounds as a fertilizer is that it may cause problems because of high acidity. My "granny" had the prettiest roses in the neighborhood . * Use a ratio of about 1/3 coffee grounds, 1/3 green material, such as grass clippings and flower stems, and 1/3 dried leaves for compost. When the earthworms and microbes start to work on the coffee grounds, phosphorus, potassium and nitrogen are released, further improving the soil. 20 Uses For Coffee Grounds Coffee Grounds are great for Hydrangeas, Camillias and Roses! She saved all her coffee grounds for her roses.

Roses need neutral to acidic soil, and if you add coffee grounds, it will help take the pH from neutral to acidic. A local Starbucks gave me a big plastic bag of their coffee grinds (without the steamed milk and sugar and foam) and suggested I spread them around my roses and other plants. Coffee grounds can be beneficial for roses. The benefits of using coffee grounds for gardens is also found outside of old books – through the life experience of gardeners, some of whom have been using grounds for decades. They can be added to new or existing plant beds. Grounds mixed into your soil will help loosen it making it easier for … The characteristics of coffee that make it useful for roses are: The coffee grounds are neutral to acidic in pH. Roses: The main reason coffee grounds are so good for rose bushes is because of their high nitrogen content which roses need for the best growth. As they decompose the grounds provide nitrogen, an essential nutrient. It also attracts the worms to aerate the soil. Composting with coffee is a great way to make use of something that would otherwise end up taking up space in a landfill.

Roses need neutral to acidic soil, and if you add coffee grounds, it will help take the pH from neutral to acidic.

Before you throw them out, consider some of the following very useful and resourceful options for putting those grounds to good use!

“Fresh coffee grounds … However, while used grounds are safe for roses, fresh grounds on the other hand are too acidic. They make the soil more acidic because of their nitrogen content, which is ideal for roses to grow. While used coffee grounds are only slightly acidic, fresh (unbrewed) coffee grounds have more acid. Roses enjoy neutral to acidic soil. What makes the actual coffee grounds so wonderful for roses is that earthworms love them. They can be added to new or existing plant beds. Used coffee grounds can be used as fertilizer in your garden. Are coffee grounds as fertilizer a good idea? Composting with coffee is a great way to make use of something that would otherwise end up taking up space in a landfill. There are lots of ways to put them use in your garden. And more to the point, there are certain plants, such as hydrangeas, Camellias and roses that just love them! Roses: The main reason coffee grounds are so good for rose bushes is because of their high nitrogen content which roses need for the best growth. Composting Coffee Grounds.

Using coffee grounds in your soil, will add nitrogen, and increase its acidity.

But coffee grounds are close to neutral, with a pH between 6.5 and 6.8, making them a good choice for all plants. Nitrogen is particularly important for roses in the spring when they are putting out new growth. Used coffee grounds can be used as fertilizer in your garden. Most plants like slightly acidic soil that can come from coffee grounds and from compost with coffee grounds.

Lily of the valley and hydrangeas like them too. The used coffee grounds will also help microorganisms beneficial to plant growth thrive as well as attract earthworms. Plants that need lots of water like even more acidity.

By adding grounds to the soil around white hydrangeas they will eventually change to blue.