How to Trim Asparagus Ferns? – [ Prune & Grow in 2022 ]

Asparagus fern is an ornamental plant. They can be used both indoor and outdoor as well. They grow very quickly and can add texture to your garden. By the name, we think that these are ferns, but they actually belong to the Lily family. It is best to keep them dense. These ferns can also be poisonous to your pets and babies.

The leaves of the asparagus plants do not look like the typical leaves. They are flat in shape and are called “cladophylls.” After growing into mature plants, their leaves can become sharp and woody. When grown in ideal conditions, they can even produce some tiny flowers and berries on top of them.

How to Trim Asparagus Ferns for Proper Growth

The asparagus ferns can sometimes also act like running plants and become creepy. They grow the best in humid climates. These ferns can cover a large area when planted outside. They should be trimmed from time to time to promote healthy growth. Some of the important things about the Asparagus ferns are mentioned, which will help you maintain these plants.

When to Trim?

The asparagus ferns need a little bit of care when they are grown. They can make your garden look dense and busy. It is recommended to cut them after the autumn season. The best time is to trim them after the first snowfall of the season. But before cutting, it should be observed that the leaves have completely turned into a brown-yellow color. For healthy growth, the asparagus ferns should be cut to the bottom. Only five to six centimeters of the plant should be left from the ground. When the dead leaves are cut from the top, healthier growth of the plant is expected, growing some fresh green leaves.

How to Trim?

As we know that when grown into mature plants, the asparagus ferns can become sharp and woody. So a big sharp garden smear or scissors shall be used to remove the dead yellow leaves. High-quality tools should be used and cleaned properly after pruning the asparagus. The tools should be washed thoroughly after cutting the debris. If not washed and cleaned properly, they can damage the healthy plants when used again. If you do not have high-quality tools, make sure you change them every year before the trimming season.

Why Trim?

Like many other plants, asparagus plants can also be attacked by pests and can die. By cutting them every now then you can protect them from many diseases as well. They even grow better and healthier when the foliage is removed regularly. When not cut for longer periods, they can become sharp, spine-like, and cause severe irritation to the hands. After trimming the asparagus to two three-inch short, you should add mulch in the bed, about 10 centimeters of which is recommended. This will help fertilize the bed, protect them from the pest attack and prepare an excellent bed for the next season.

Some of the plants are replanted by using the propagation method. This is best done in the spring after most of the debris has been removed in winter. You can cut the roots in two halves and plant them again in the soil. Make sure you water the roots properly one night before to reduce the moisture loss. This method of division should be done when the plant starts becoming brown and is about to die.

Overgrown Asparagus Fern

The overgrown asparagus plants do not look neat. Though they add texture to your garden, they should also look good in person as well. For a neat appearance, they should be trimmed more often. This also helps to remove the dead leaves, which do not look nice at all. Trimming also helps in healthy growth.

When planted outdoors, the leaves can be damaged by the extreme heat from the sun, which does not let the plant grow. For normal green, healthy leaves to grow, it is necessary to cut the foliage from the top. People cut their plants every three years depending upon the texture and appearance they want. You can even trim these out every year if they have been damaged by the heat or attacked by pests.

Precautions and Tips

Below are some of the precautionary measures and tips that should be used while cutting the asparagus plant:

  • Gloves should be worn before cutting because they can be sharp.
  • A sharp garden smear should be used because the leaves can be thick and woody.
  • The scissors or garden smear should be cleaned thoroughly to remove the debris.
  • Before the propagation method, water the roots enough to control any moisture loss.
  • The new plants shall not be placed directly under the sunlight.
  • Fertilizers should be used regularly for healthy growth.


When should you cut back the asparagus fern?

The asparagus fern should be cut two-three inches short from the ground when the leaves become dry and yellow-brown in color.

How do you maintain an asparagus fern?

For healthy growth, the asparagus fern should be trimmed frequently. They should be watered from time to time and fertilized after every fall season.

How do I make my asparagus fern bushy?

Asparagus ferns are usually cut once every three years. You can even trim them once a year, depending upon the dense appearance you want. Clean tools should be used for trimming; this also helps make them grow back healthy and bushier.


Asparagus ferns are often used to add texture to your garden. For healthy growth, they should be cut and watered properly. Fertilizers should be added after the debris has been removed in the winter. They can even produce some tiny flowers and berries, which is uncommon in ferns. They should not be planted in direct sunlight because it can dry the leaves, turning them brown. Sharp and good-quality tools should be used for trimming the mature leaves.

All the necessary information regarding the asparagus fern has been provided above in the article. You can find everything from basic to complex information about cutting these plants, why it is important, and what season is best for the trim. Even some of the precautions and tips are mentioned for your help. I hope you find this helpful. Happy Planting!