As your English ivy ages, it can start to look unhealthy, droopy, or even attract pests or fungus. There are some things that you can try to rejuvenate English ivy that has become sick or otherwise lackluster in appearance.
Many plants, including the English ivy (Hedera helix), can show signs of winter stress. The winter depletes the moisture in the soil and broad-leaved plants like the English ivy tend to suffer the most.
Symptoms of winter stress include brown leaves. So, if spring just arrived and your plants look a bit brown then give them time to rejuvenate and use the following steps to help it recover.
Controlling Bacterial Growth
Fungal and bacterial leaf diseases all exhibit leaf spots. For example, a bacterial leaf spot leaves brown to black spots that are surrounded by a yellow outline on the leaves. The infected leaves eventually turn yellow and fall off. You can control bacterial leaf spot using cupric hydroxide.
Both fungal and bacterial leaf spot diseases are characterized by leaf spots. Bacterial leaf spot causes dark brown to black spots surrounded by a yellow halo. As the disease progresses, infected leaves turn yellow, die and fall off the plant. Control bacterial leaf spot with cupric hydroxide (Kocide).
Controlling Fungal Growth
On the other hand, fungal leaf spot leaves abnormally-shaped tan or brownish spots. If you use a microscope you can see tiny dark brown spots within the larger spots. A copper-based fungicide is good for controlling fungal leaf spot.
Rejuvenate English Ivy
Take a look at your English ivy, there should be new leaves or growth along the stems. To help your ivy plant recuperate itself, remove the dead leaves, preferably by hand. For larger beds of ivy, cut the stems back to the new growth.
Try adding some fertilizer to provide nutrients to help promote new growth. use about 3 to 5 pounds of fertilizer for every 1000 square feet. Granular fertilizer is best in these situations. Ensure that the leaves of the ivy are dry to prevent burn. Also, be sure to brush away particles of fertilizer that are left on the leaves. Brush them into the soil.
You can purchase rooted cuttings to fill in areas where the new growth isn’t filling in quickly enough. Placing the cuttings 6 to 8 inches apart allows for quicker coverage. Also, a supply of water (don’t overwater) during dry weather or during the summer can help the recovery process. An inch of water per week is more than enough.
The above tips should work well for any type of ivy plant. Always be sure to check with your local gardener for professional help.