Bloomin Designs NurseryAnswer
Mar 12, 2024 - 05:02 AM
Great question -
You do not necessarily have to cut back Siberian irises in winter, but it is recommended. Here is a breakdown of the pros and cons: Cutting back in late fall/winter: Pros: Removes potential harborage for pests and diseases over winter Improves air circulation around the plant crown Can make your garden look tidier Cons: Removes foliage that still provides some energy for the plant
Leaving foliage on: Pros: Provides some winter protection Allows the plant to continue photosynthesis for a bit longer The general recommendation: It's safe to cut back the foliage in late fall or early winter, just above the crown of the plant. This is a good balance between removing potential disease issues and allowing the plant to store some energy. Here are some additional factors to consider: Climate: In colder zones (USDA 3 & 4), you might want to add a layer of mulch after the ground freezes to protect the plant crown from heaving due to freeze-thaw cycles. Plant health: If your Siberian irises look diseased, it's best to remove the foliage as soon as possible to prevent the spread of disease. Ultimately, the decision of whether or not to cut back your Siberian irises in winter is up to you. But following these guidelines will help you make the best choice for your plants
You do not necessarily have to cut back Siberian irises in winter, but it is recommended. Here is a breakdown of the pros and cons: Cutting back in late fall/winter: Pros: Removes potential harborage for pests and diseases over winter Improves air circulation around the plant crown Can make your garden look tidier Cons: Removes foliage that still provides some energy for the plant
Leaving foliage on: Pros: Provides some winter protection Allows the plant to continue photosynthesis for a bit longer The general recommendation: It's safe to cut back the foliage in late fall or early winter, just above the crown of the plant. This is a good balance between removing potential disease issues and allowing the plant to store some energy. Here are some additional factors to consider: Climate: In colder zones (USDA 3 & 4), you might want to add a layer of mulch after the ground freezes to protect the plant crown from heaving due to freeze-thaw cycles. Plant health: If your Siberian irises look diseased, it's best to remove the foliage as soon as possible to prevent the spread of disease. Ultimately, the decision of whether or not to cut back your Siberian irises in winter is up to you. But following these guidelines will help you make the best choice for your plants
