Roses commonly suffer from fungal diseases i.e. blackspot and mildew - for blemish free roses the natural way spray your plants with Sulphur Rose. Roses are a gardener's favourite, but often develop yellow leaves and black blotches i.e Blackspot & Mildew, which makes the plants unsightly. Sulphur Rose is a brilliant plant tonic, which contains sulphur, which is the the natural enemy of blackspot & powdery mildew, but is safe for bees, ladybirds and lacewings.
Spray Sulphur Rose onto your roses (and other plants - see below) throughout the year to encourage blemish free growth. Spray your plants during the dormant season, spraying the stems and the ground around the roses. Then spray regularly through the growing season. During periods of high humidity and above average temperatures, spray every 14 days because these conditions encourage the spread of diseases. Sulphur Rose MUST be applied to both the underside and top of all the leaves. Sulphur Rose is available as a Ready to Use Spray or as a Concentrated Powder (250g and 1kg), which is dissolved in water and applied with your own sprayer. A 250g pack will keep 20 roses healthy for one season.
N.B. Sulphur Rose can be used on other plants including apples, cane fruits, dahlias, delphiniums, honeysuckle, phlox, pears, plums, clematis and grapes), which suffer from yellowing leaves and blemishes - simply spray both the underside and top of the foliage throughout the growing season at a rate of 10g per 4.5 litres of water.