My roses are covered in dark spots, and lots of the leaves have gone yellow and dropped off.
This sounds like Black Spot. It is a fungal disease, which is often worse in wet weather. Spray with Yates Fungal Fighter from when the new leaves start opening up.
Please login first to submit.
As well as offering an enjoyable garden shopping experience, our Garden Centres host a range of other fantastic retailers including cafes, gift shops and florists.
For inspiration, professional advice and the latest in NZ gardening trends, Palmers is the place to be.
Start typing and press Enter to search