Sublime Garden Design is a full-service boutique landscape design firm serving Snohomish County, Seattle, and surrounding areas. Heuchera Rust is a relatively new problem in the UK, first identified in 2004. Diseases of Heuchera sp. They make excellent ground cover plants, too.. A cross between heucheras and tiarellas, heucherellas have brightly coloured foliage. (Coral Bells). Sometimes the larvae sever the leafy top from the roots. We have had good luck with ‘Obsidian’, ‘Berry Smoothy’, some of the silver-leafed varieties like ‘Silver Scrolls’. Heucherella and heuchera are both North American natives and both are suitable for growing in USDA plant hardiness zones 4 through 9. The sun burning causes irregular bleached dead areas on the leaves. Like many fungal problems in the Pacific Northwest, air circulation, humidity and moisture play a big roll in rust infections. There’s no water I can remove at this point so I’m waiting for the plant to dry up some more before giving more water. For hostas that have rich green leaves, it is more difficult to detect the virus. Diagnosing Heuchera Disease. To fix the problem we must change the circumstances that led to it. Even though the adults seldom notch the edges of heuchera leaves, their larvae (youngsters) often seriously damage the roots, also the short stem immediately below the leaves. In such instances, a gentle tug on a leaf will often separate the top from the roots. It … Works best in dappled sunlight. I will keep some of the preventative tips in mind. Xanthomonas causes small brown angular to circular spots with yellow halos. Heuchera ‘Mint Julep’ But what do we do to protect our Heucheras? Organized under Education, Garden Maintenance, Garden Tips & Advice, Plant DIseases. A good landscape design and irrigation program along with proper sanitation will go a long way to preventing such problems. Unfortunately there are no conclusive lists on Heuchera cultivars resistant to rust. Do you have a plant that you are having problems with? Avoid overwatering. Heuchera forms attractive basal mounds with heart-shaped, rounded, or triangular leaves which can be smooth wavy, or ruffled. Hello. They can be both dark and light green. Prune off old tattered foliage in late winter increases airflow around the stem and allows fresh new foliage to take its place. I have a problem with Heuchera plant, it seems to have rotted at the base. More about us... "I now have an amazing outdoor living space that is better than I could have ever imagined. We typically see it in late spring or early summer around the Seattle area when things are moist and humid. Although Heucheras are typically trouble free plants here in Washington, they can be prone to a few pests and diseases. Practice good garden hygiene by cleaning your tools and gloves once your done. This site uses Akismet to reduce spam. Problem with Heuchera plant. Watering overhead should be done early in the morning allowing time for the foliage to dry out during the day. Utilize a drip irrigation system instead of overhead sprinklers to reduce moisture on the foliage. 9. Here on our blog, we'll share our expertise, discoveries, and the gardens we love. While walking the garden recently we spotted the signs of rust, a fungal disease found on Heuchera and its close relatives. Leonard 2 Posts: 18. Like heucheras, they thrive in shade and work well as ground cover. More information is available on Hort Answers, University of Illinois at Urbana-Champaign. Your email address will not be published. The leaf coloration varies by cultivar, but mainly includes various hues of amber, bronze-green, green, gold, pink, purple, deep purple and silver veined. They may or may not cause the leaves to fall. Hello. (Everett), (360) 863-3224info@sublimegardendesign.com, 2801 Bickford Ave, PMB 107, Suite 103 Snohomish, WA 98290. have had good luck with ‘Obsidian’, ‘Berry Smoothy’, some of the silver-leafed varieties like ‘Silver Scrolls’. It’s hard to tell what’s going on without seeing it. Got a moist spot in the garden with bad airflow? Although Heucheras are typically trouble free plants here in Washington, they can be prone to a few pests and diseases. Much valued for their colourful, clump-forming foliage, they also bear attractive flowers in summer that attract pollinating insects. for updates, tips, and gardening insights, Sublime Garden Design | Landscape Design Serving Snohomish County and North King County. The leaves have been eaten on the edges as well. Increase airflow in your garden by not spacing plants too closely together. I have always wondered about the difference between Heucherella (foamy bells) and Heuchera (coral bells). I did look for information on heuchera diseases and here is some information I found: "Plants that are too moist and shady may get some fungus problems during the summer. It is a strain of fungal rust which affects only heucheras and is properly called Puccinia hucherae . Make sure your watering thoroughly especially in the summer heat and remove any dead or damaged leaves. What have been the best performers in your garden? I appreciate the way Heidi took into account my lifestyle, taste and the existing plants that I already had into her design. One of our favorite things about their foliage is the way it can change with the seasons. It will help you positively identify it and describe the various treatment options available. I have a problem with Heuchera plant, it seems to have rotted at the base. Heucheras have become a staple of garden and container designs across the Pacific Northwest. It has quickly become far more common over the last decade. October 2017 in Problem solving. Heuchera sp. In such instances, a gentle tug on a leaf will often separate the top from the roots. In addition to stains, a sign of infection is a deformation of the leaf. Problem with Heuchera plant. 0 Heuchera Rust can be identified by small rust coloured raised areas on the underside of leaves. Because the Heuchera cultivars we find in garden centers are hybrids from up to five different parent species we see great variation in disease resistance and plant performance. More information is available on Hort Answers. The good news is that this rust does not spread to other plants in your landscape. Botrytis causes large brown spots. (Coral bells) get both fungal and bacterial leaf diseases. The sign of this disease is green spots on the leaf. If you can find what’s eating them, that’ll help you determine your best course of action. The worst insect pest of the heuchera-tiarella group is the Black Vine Weevil, Otiorhynchus sulcatus. Although this fungus is not likely to kill your plant the damage to the foliage is quite unsightly. Post your question below and we may just answer it in one of our upcoming posts. While walking the garden recently we spotted the signs of rust, a fungal disease found on Heuchera and its close relatives. My Heuchera leaves have holes and appear to be a meal for some pest(s). I have Heuchera I am not sure which one but it looks like a coral bell unfortunately her dark leaves turn green and black it doesn’t look good, I keep my plant in a pot and has sun between 10am to 12pm. October 2017 in Problem solving. My plant is having yellow edges around some of the leaves and she definitely looks sad. What should I do? I know she’s still moist from watering her but I’m afraid I might have overwattered her one day and since then she’s been down. It was grown in a general All purpose fertiliser. The over watering could have caused the yellowing around the edges and you’re doing the right thing by letting the soil and roots dry out a bit before watering again. I’ve sprayed Neem Oil but apparently not effective. An excellent choice for tubs and containers.