Roses

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Summer rose care

Summer can bring heat, hot dry winds and high humidity, which all affect the health and appearance of roses. And if your roses have developed leggy or sparse growth and spindly stems it’s a sign that your roses need a summer prune. Summer pruning roses refreshes and reinvigorates the plants and they will respond in a matter of weeks, putting on new growth, ready for another flush of flowers. In fact, you can time rose re-blooming if you have a special event coming up, as they’ll flower again around 6 – 7 weeks after pruning.

Rose pruning is not tricky, just trim off around 30% of the overall growth and also remove any dead or thin stems. You can use hedge shears or a good sharp pair of secateurs. Don’t forget to protect your hands, arms (and face!) from rose thorns with sturdy gloves, long sleeves and glasses.

After pruning, collect up all the fallen leaves and stems (this helps to reduce the incidence of disease) and apply some Yates® Thrive® Roses & Flowers Liquid Plant Food and water in well. It’s a complete and balanced liquid fertiliser that has been boosted with extra flower promoting potassium. Next, spread a layer of mulch, like sugar cane, lucerne or pea straw around the root zone, which will help keep the soil moist and protect the top soil from baking sun. Reapply Yates Thrive each week to encourage healthy new foliage growth and lots of flowers.

New foliage and flower buds can attract damaging insect pests like aphids. Regular sprays of Yates Rose Gun®" will help control common insect pests like aphids, as well as caterpillars and diseases like black spot, rust and powdery mildew.

If you’d like to add a beautiful rose to your garden over summer, potted roses are still available for planting. Bordeaux (Korelamba), pictured right, is a magnificent floribunda rose from Treloar Roses (www.treloarroses.com.au) with masses of large, double cupped wine red blooms with a subtle fragrance. The bush grows to around 80 cm tall and looks fantastic when mass planted. Bordeaux was recently awarded a gold medal for being the best floribunda rose release for 2017 and also the best floribunda of the rose trials. Well done Bordeaux!

Bordeaux rose image © Gary Matuschka, used under license.

Check out the latest summer edition of Growing With You, Click below to view full screen.

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