Ornamental cabbage, also known as flowering cabbage or kale, is a beautiful addition to any garden or landscape. Many people wonder if these plants will come back year after year, or if they need to be replanted annually.
While ornamental cabbage and kale are technically perennials, it is generally recommended to treat them as annuals. This is because they are not reliably cold hardy and may not survive harsh winters, especially in regions with extremely cold temperatures.
In most parts of the country, ornamental cabbage and kale will last through the winter. They are known for their ability to tolerate cold temperatures and even frost. However, when temperatures drop below approximately -5 degrees Fahrenheit, these plants may not survive.
To ensure the best chance of survival, it is important to provide proper care for ornamental cabbage and kale during the winter months. This includes protecting them from extreme cold, providing adequate moisture, and avoiding excessive exposure to harsh winds.
One way to protect ornamental cabbage and kale from freezing temperatures is to provide a layer of mulch around the base of the plants. This will help insulate the roots and provide some protection from the cold. Additionally, you can cover the plants with a frost blanket or row cover during particularly cold nights.
In terms of moisture, it is important to keep the soil around ornamental cabbage and kale evenly moist throughout the winter. This will help prevent the plants from drying out and becoming stressed. However, be cautious not to overwater, as excessive moisture can lead to root rot.
Personal experience: I have planted ornamental cabbage and kale in my garden for several years. While they have survived mild winters without any extra protection, I have found that providing some winter care greatly increases their chances of coming back the following year. I usually cover them with a frost blanket during cold spells and make sure to water them regularly.
Ultimately, while ornamental cabbage and kale have the potential to come back year after year, it is best to treat them as annuals and replant them each spring. This will ensure that you have fresh, vibrant plants in your garden and avoid disappointment if they do not survive the winter.
