Many gardeners do not realise that roses are very vulnerable in spring and can risk losing all their flowers if they are not watered with an everyday item most people have in their kitchen.
Simply mix milk and water together and mist your roses(Image: Getty)
Gardeners are beginning to enjoy the fruits of their labour as rose buds swell and start to flower, but they ought to be mindful that spring can prove problematic for these blooms. Roses are particularly susceptible to a fungal condition known as black spot during this period, as the spores typically flourish when the soil warms up whilst being exposed to wet spring conditions.
This ailment derives its name from the most conspicuous symptom – large, blotchy black marks appearing on rose foliage that ultimately drop off, spreading the infection throughout the garden. Whilst black spot alone is unlikely to prove fatal to roses, it compromises the leaves so the plant cannot absorb sufficient energy, rendering it more vulnerable to pests and other ailments.
It prevents roses from flowering properly, leaving you with a barren and lifeless-looking plant, but it’s also more prone to dying back in summer as it struggles to withstand hot weather.
Black spot disease is more common in spring when the soil is wet and warm(Image: Getty)
How do you help keep roses healthy in spring?
However, Joe, a gardener and founder of In the Wild Garden, has revealed there’s a natural yet highly effective method to prevent black spot on roses, or even help treat it by spraying with milk.
Joe explained: “Mix up a solution of one part milk (full fat milk) to two parts water in a spray bottle. Spray the remaining leaves of the plant with this solution, and repeat every week.”
It may seem odd, but when milk is exposed to sunlight, it generates compounds that are toxic to fungal spores, halting their spread, reports the Express.
Milk also forms a thin layer on a leaf, making it more difficult for spores to latch onto a plant and acting as a shield against infection.
Utilising milk can help ward off black spot in spring or slow down the disease if caught early enough, ensuring it doesn’t completely damage the plant and affording it a better chance of survival.
You can prevent black spot if you spray roses once a week with milk(Image: Getty)
How to use milk to prevent black spot disease
The simplest and most effective way to keep black spot at bay in your garden is to maintain cleanliness. Black spot spores propagate through decaying foliage, so ensure you’re collecting leaves or any other debris around the base of your roses.
Mulching your roses will also significantly aid in preventing black spot, as spores tend to splash onto the plant during rainfall. Covering the soil with compost or wood bark will help stave off the infection.
Next, spritz the milk solution on roses once a week. Simply blend one part milk with two parts water in an empty spray bottle. Use it to mist the leaves, aiming to lightly cover the plant rather than drenching it.
Ensure you inspect your plant at least once a week for signs of black spot. If you spot it, strip the plant of all its leaves, dispose of them in a bin, and continue using the milk solution.
Roses will stay healthy and disease-free if sprayed with an everyday household item in spring(Image: Getty)
It’s worth noting that milk can emit a smell, so it’s advisable to refrain from spraying it during the afternoon when the sun is at its peak, as this could result in a potent sour aroma permeating your garden.
Instead, it’s preferable to spray in the morning, allowing the leaves to dry more swiftly. Alternatively, you could opt to apply it later in the day, during the evening if you prefer.
Joe cautioned: “One word of warning would be to do this in the evening, as the smell of milk in the garden on a hot day is not great!”
However, if you choose to spray the solution in the evening, ensure your roses are thoroughly dry afterwards, as leaving the plant damp overnight could lure slugs or other pests.
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