Why have my dahlias stopped flowering?
By midsummer, dahlias should be starting to pump out the blooms, but I'm often asked why these normally reliable plants have stopped flowering in some people's gardens. It can .....
What are the sticky bumps on the stems and leaves of my plant?
It can be worrying when you come across something unusual in the undergrowth, especially when it takes the form of usual bumps on stems of plants and distinctly sticky .....
Why are the leaves on my buddleia curled and yellow?
The leaves on buddleias across the land have been showing curled, yellow symptoms which have left gardeners puzzled. The butterfly bush or buddleia, Buddleja davidii, is a beloved feature .....
Why have the leaves turned brown on my box plants?
Gardeners have noticed a scourge of box bushes that has turned their leaves brown in recent years. First it was box blight, a fungal infections that causes the foliage .....
What makes stems die back on roses?
Faced with pruning the roses, it is important to understand what makes stems die back on roses. Perhaps unsurprisingly it is referred to as rose dieback. And while you .....
What are the clumps of twigs in trees
Take a walk in the woods or look into the crowns of birch trees in winter and you’ll see not only a beautiful tracery of branches, but some unusual .....
What are the black spots on hardy palm leaves
Exotic foliage garden plants have never been more popular, following on from the huge interest in houseplants, but many hardy palms are presenting with black spots on their leaves. .....
Why don’t roses open fully
The arrival of wet weather often brings with it a wide range of plant diseases and disorders – none more disfiguring than rose balling in which the flowers fail .....
Why do my plants get powdery mildew
In late summer and autumn, many plants get an attack of powdery mildew. Herbaceous perennials such as phlox and asters are particularly prone, with dry soil but plenty of .....
Fig mosaic virus – keep an eye out for this disease
I seem to have been talking about plant viruses quite a bit this last year or two, and the latest plant to suffer from this disease in my garden .....