Persian lilac ( S. persica) The Persian lilac thrives in warm climates and grows up to 8 ft. (2.4 m) tall and up to 10 ft. (3 m) wide. Sign up for our newsletter. We did identify a 'gaul' on our bushes and were told by Portland Nursery that we should treat it next October after the leaves fall, but that it was benign. I am trying to figure out what is wrong with my forsythia shrubs and am not really sure where to look. Have you had forsythia bushes fail to bloom? on commercial properties across North America. Bushes that still have some life left in them will have green under the top layer of the wood, but if all you see is dry, brown wood, your bush may be dead. The next year, in early spring, use a fungicide spray to prevent future occurrences. You can also remove any branches that cross over the others or look . 2023 Gardening Know How, Future US LLC, Full 7th Floor, 130 West 42nd Street, New York, NY 10036. Is your forsythia or seedling showing signs of death? Newly planted shrubs require some special maintenance and attention to ensure they grow healthy roots. Typically, fungal issues occur when you water the plant way more than you're supposed to. Our ISA certified arborists live and work in your community. Cuttings should be taken after flowering is completing and when the shrub has leaves. If your forsythia is dead, it's really up to you whether you want to cut it back to the ground or not. Pale pink hydrangeas, grassy green boxwoods, rosy red azaleas. Forsythia: An Early Spring, Yellow Flower, Weather Forecaster? 6 Clear Ways to Tell If Your Arborvitae Is Dying We haven't introduced anything new to the yard that could have infected them with something. If there is an infection, you will want to disinfect your pruning shears after every cut to avoid spreading the pathogen. Have treated with triazole fungicides without much success. Still, like any plant, they can die if their basic growing needs aren't met, or if they simply get too old. Select a spot in full sun where the shrub will have plenty of room in which to grow and expand. Talk to our team of industry leaders to learn how we've provided solutions to other utilities with similar challenges and goals.
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