Search - Articles

Rust fungus is the curse of hollyhocks. The undersides of the leaves are often peppered with bright yellow or orange-red rust spots with corresponding beige-yellow splodges on the upper surface. Eventually, it affects the whole plant, with leaves

.Promptly pick off and destroy affected leaves. If leaf spot is a persistent problem, try growing your primulas under glass.Spraying with myclobutanil may help give some control, although they're not specifically labelled as a solution for primula leaf spot

-magnesium carbonate to the soil in autumn or winter to remedy the deficiency for next year.potatoes, apples, cherries, grape vines, tomatoes, camellias, rhododendronssummer, autumn, winterMore common plant problemsCanna virusRaspberry nutrient deficiencyHollyhock rust

and leaf stalks of roses to more obvious orange speckling on the leaves. This can lead to leaf fall. In late summer, look out for black pustules on the leaves.Learn more about rust and hollyhock rustOrange speckling on rose leaves in early summer, sometimes

Rust is a fungal infection and there are many different types that tend to be specific to particular plants and spreads by means of dust-like spores. The fungus is encouraged by a humid, moist atmosphere and grows on the surface of the leaves

, according to Chief Horticultural Advisor Guy Barter. The growing season is getting longer, and plants are simply taking advantage.I don't know if my spring-flowering cherry is blooming late, or early. But not only is it in flower, it's also produced a second

'. This is a half-hardy annual from central Australia, and is heat and drought tolerant, as you'd expect of plants from this part of the world. 'Joey' grows to about 30-35cm tall and produces glorious feathery, silvery-pink plumes. I've never grown anything