Roses Archives - Hydrangea Guide

Learn how to identify, control but also prevent black spot on roses. This starts to preparation and then ongoing treatment. Learn more

Black spot disease on roses – Preventing and controlling it

October 6, 2022 John

Being a lover of roses myself, I have both rose beds which I inherited with the house, but I also grow them in containers. I’ve had my fair share of experience with dealing with blackspot (Diplocarpon rosae). I have also worked in nurseries for over 20 years so have also been the person who deals with treating roses as I have my spraying licence to spray pesticides and fungicides commercially. Black spot is more about trying to prevent the disease…

12 Common Rose Problems and How to Identify and Treat Them

October 19, 2021 John

Roses are considered the queen of flowers due to their popularity worldwide, and as beautiful as they are, they have their own share of problems with diseases such as blackspot, rust and mildew being some of the most common but more on these below. There are some rose cultivars designed to be more pest and disease resistant, but I have never found a specific rose that doesn’t suffer from one issue or another. In this article, I cover some of…

Caterpillars on Roses – Killing Rose Sawfly Larvae

September 14, 2021 John

Your beautiful roses have been thriving and then all of a sudden you start noticing that the leaves are curling inwards or outwards, scars on the stems or holes in the leaves. You look for the root of the problem and discover rose sawflies are plaguing your roses. It is actually a fairly common problem, so what do you need to do? How do you deal with rose sawflies without causing further damage to your roses? In this guide, I…