Give your rose bushes your used tea bags and banana peels. They will love you for it. Also hydrangeas will love your water from when you boil potatoes. You can also use the potato peels at the bottom of your plants.
By tennis4two from Madison, IN
It works. I've done the banana peels for years. Roses are in pots and have never had black spot.
Also any leftover brewed coffee or coffee grounds, sprinkle it around your plants (indoor or outdoor plants). I always dilute my leftover coffee and use it to water my plants.. oh boy, your plants will be doing the happy dance.
In spring your roses will love the blood from your hamburger or roast beef packages. Mix with water and pour on roots. This really makes them bloom. There are different kinds of rose bushes. When buying one be sure to check bloom times. Some only bloom for about 5 weeks in the spring. Others bloom mid summer, some all summer etc... So look at the bloom schedule before buying your new rose plant. Happy Gardening!