It is a prevalent disease, although it rarely causes the death of a plant. I believe removing the leaves in the fall help to reduce their numbers come spring since they can lay their eggs in decaying matter. What is the wisdom in such a case about removing some or a lot of the foliage? Ugly as it is, the best thing to do about burnt growth is to leave it be and to provide as much water as possible to damaged plants. Prevent Hosta Disease. Let the leaves that are left absorb light and send nutrients into the roots for future health. Visit the link in additional resources to help determine the cause of your dying hosta. By: Robin Lewis 21 September, 2017. hosta image by Fotomaniac from Fotolia.com. Symptoms. Whenever you groom hostas, clean shears and wipe cutting surfaces, which can become pitted, with a half-and-half mixture of rubbing alcohol and water to guard against transmission of fungal infections or rots. on Mar 5, 2017. It might come off naturally if it is close enough to death. I had to cut some of my hosta leaves off from their stems now only showing the stems .. No disease or anything of that sort .. It is easy to cut dead or dying leaves off of a houseplant. I have rooted the Hosta plants from leaf cuttings with 80% success by keeping cuttings in water in one experiment and about 30% success using poting soil. Otherwise, mice tend to nest in them over the winter. Pick up and dispose of the leaves that you trim off in the trash. Cutting hosta leaves. Pruning is extra important for your monstera because sometimes it needs a little extra help getting rid of dead or dying leaves. Later the affected areas develop into chocolate brown streaks, islands or wedges bordered by veins. Prized for their color and texture, hostas can be grown in USDA zones 4-9. If you see brown and wilted leaves along with white masses on the plant, pull any mulch away from the hostas, as this could be a sign of Sclerotium Blight. Anthracnose is caused by spores of various fungi and can cause severe damage to hostas. This hash can be smoked right away and doesn’t require a cure since there isn’t any plant material in it. I've tried tin snips, but it's slow going and hard to get close to the leaf base. Slug and snails can wreak havoc on Hosta leaves in the spring and summer. In these zones, the hosta growing season ends when temperatures dip below 50 F. (10 C.) at night. Regular deep watering along with a weekly application of a seaweed tonic (not one containing any fertiliser) helps plants to recover. Although the main decorative purpose of hostas is the color and texture of the plant's large tapering leaves, they also produce long clusters of bell-shaped flowers on long spiking stems. In summer, when the weather is warm, and there are frequent rains, these are ideal conditions for the disease to develop. I have never had and bugs or disease by cutting them back. Brenda31 Schoharie, NY Jul 03, 2014. Their thick, luscious, shade-loving leaves are perfect for filling flowerbeds with loads of color and interest. lavendargrrl Apex, NC(Zone 7b) Jun 04, 2006. Once you have decided on the where, use a shovel or a sharp knife to make vertical cuts between the shoots and down through the clump of roots. Destroy the dead hosta leaves to prevent the spread of disease. Is there a good tool out there for the job? For leaves in the interior of the plant, you will find using pruners or scissors easier than a knife, but it is harder to cut the leaf off right at the base. I understand that you are concerned about your dog ingesting Hosta plant leaves.Hosta plant parts are considered toxic to dogs, cats, and horses because they contain saponins, which are soap like irritants. Apply a thin layer of mulch carefully in the fall. Mark unread; Skip to new; Mark unread Print Skip to new. This way the plant will have taken as much energy and nutrients as possible from the leaves for next spring. A little summertime hosta care will go a long way towards keeping your hosta plants beautiful, vibrant, and full of foliage all season long. In this video I show you how I trim the dead leaves and Pitchers from my Venus Flytraps and Nepenthes plants. Post #2350491. Nancy. How to Fertilize Hostas. They are glycosides with a distinctive foaming characteristic.Signs of toxicity include vomiting, diarrhea, and depression/lethargy. Now, cut off the foliage at the ground level. Hosta Cold Tolerance. Of course, there is always the option to let the entire stalk bloom and you remove the dead flowers from the leaves manually, if you have the desire. If you’re asking about the random dead leaves that occur during the growing season, you should cut them off (level with the soil line) as soon as they start to yellow, instead of waiting for them to die completely.