As a gardening and landscaping expert, I have had personal experience with Macho ferns and their cold tolerance. Macho ferns are generally considered to be cold-hardy in Zone 9, which means they can withstand temperatures as low as 20-30 degrees Fahrenheit for short periods.
However, it is important to note that while Macho ferns are relatively cold-hardy, prolonged exposure to freezing temperatures can still damage or kill the plant. So, if you live in an area where temperatures regularly dip below freezing, it is a good idea to provide some protection to ensure the survival of your Macho ferns.
One way to protect your Macho ferns during freezes is to cover them with a frost cloth or blanket. This will help to trap some of the heat radiating from the ground and provide insulation for the plant. Be sure to secure the cloth tightly around the base of the plant to prevent any cold air from getting in.
Another important step in protecting Macho ferns during freezes is to water and mulch them well. Watering the plants thoroughly before a freeze will help to hydrate the roots and provide some protection against the cold. Mulching around the base of the plant with a layer of organic material, such as straw or leaves, will help to insulate the roots and retain moisture.
In my own experience, I have found that providing these protective measures during freezes has helped to save the green top growth of my Macho ferns. However, it is worth noting that even with these precautions, there may still be some damage to the fronds or foliage. If this occurs, simply trim off any dead or damaged growth in the spring to encourage new growth.
To summarize, while Macho ferns are considered to be cold-hardy in Zone 9, it is still important to provide protection during freezes, especially if temperatures are predicted to fall into the 20s. Covering the plants with a frost cloth, watering and mulching well, are some effective ways to protect your Macho ferns from cold damage. By taking these precautions, you can help ensure the survival and health of your Macho ferns even in colder temperatures.
