It is best to water at the base of the plants whenever possible to help prevent mold or fungus from growing on the leaves. "Panicle hydrangea, also known as Hydrangea paniculate , is very cold hardy, and reliably comes back even after brutal zone 3 winters," she says. Posted by Denise Schreiber on July 14th 2019. Obviously plants need watering during hot, dry weather. Watering Newly Planted Hydrangeas. If the leaves are yellowing and turning brown, check for standing water or a clogged drainage hole. In their first … They prefer at least 4 hours of morning sun that will allow the best color and flowers on the plant. Or water when it is noticeably dry. In Southern Alabama, although it’s still hot, very hot,…ok I’ll stop there but, man it is hot. Temporary shade can be provided using outside chairs, umbrellas, etc. When it comes to fertilisation, Hydrangea needs vary greatly. Then they will perk up when it cools off in the evening. The same rules apply for hydrangeas grown indoors. Immediately put into room temperature water and then arrange. Water the soil, not the plant. In hot weather, give each plant a good soak at two or three day intervals, rather than a quick sprinkle every day. Newly planted hydrangeas may need watering daily in dry, hot weather. Hydrangeas grown in the ground are usually fine left to defend for themselves, unfortunately, potted plants are more exposed and will require some sort of protection from frost. They also like to be in a pot that drains well. If you overwater them too much the leaves closest to the ground may start to turn yellow and the plant will wilt. That’s because … Place them near a bright window in a cool room for optimum results. Provide plenty of water Hydrangeas should get a deep watering about three times a week. What do hydrangeas symbolize? Pruning Hydrangeas Start pruning after the flowering season, which is usually late Autumn or Winter. M.H. Never let it sit in water which will cause the roots to rot away. In the heatwave, make sure you're watering your plants at the right time of day Share on Facebook; Share on Twitter; Share on Pinterest; Email to a friend; High noon, the cool of the morning or the shade of the evening; there are many theories about the best time of day to water your plants. Sure, mulch is great to protect from winter’s cold, but it’s also amazing for protecting from summer’s heat. Long-term containered (tap … You can prevent this by protection the hydrangea. Each of the five species widely available in the United States has its own specific requirements, but generally hydrangeas like a dappled-sun location that gives them shade in the hot afternoons, and moist, well draining soil. If it feels dry…it’s time to give them a good soak. When watering pots, containers or plants in the garden soil, water the compost or soil heavily and then leave alone for several days. You do not want to plant them in an area that has standing water, especially after rainfall. U.S. National Arbotetum: Hydrangea Questions and Answers, Ohio State University: Hydrangeas in the Landscape, NDSU Extension Service: Questions on Hydrangeas, Oregon State University Extension: Hydrangeas Plus. To prevent your cut blooms from wilting prematurely, try this tip: Cut them early in the morning or late in the afternoon, and place the ends of each stem in boiling water for 30 seconds, making sure that the steam does not burn the flower head. Learn which plants thrive in your Hardiness Zone with our new interactive map! Check the soil regularly to make sure it is moist. No matter which hydrangea you are growing, it is important to understand the watering needs of the plant. Of course, watering isn’t all you can do to keep your plants cool when it’s hot outside. Water deeply every 3 days rather than a shallow water daily. Even if the leaves wilt on a hot afternoon, moist soil will ensure that the blooms will look as good as new the next morning. 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