Lots and lots of organic matter does wonders for the rose garden and the rest of the garden as well. Keeping organic matter levels up will improve your soil, allow you to use less water in the garden, reduce or eliminate nutrient loss from runoff water, and keep diseases in check. So add lots of mulch to your rose garden. You'll be happy you did and your roses will be jazzed all season long. The last thing on our list of helpful materials is Neem seed oil.
Neem oil is a very helpful natural material for rose gardeners.
This botanical pesticide is derived from the seed of the neem tree of India and is a very powerful pest feeding suppressant and it also has some mild fungicidal properties. Neem is also a pest insect repellent that can keep the bad guys away from your roses for up to two weeks after application to your plants. Neem is widely available at most garden centers these days. Rose Defense is the most widely sold Neem product, but it can be found under other trade names as well. It smells like hazelnuts to us but bad guys really hate it.