Why Is My Asparagus Fern Turning Yellow

This post answers the question; Why is my asparagus fern turning yellow? The most common problem with asparagus ferns is yellowing leaves.

Asparagus ferns (also called emerald feather or emerald fern) are native to tropical areas around the world, but they have been cultivated for centuries and are now grown throughout the world.

Asparagus fern (Asparagus plumosus) is a hardy, low-growing perennial that produces clusters of green stems topped with tiny, delicate yellow flowers.

Asparagus ferns are native to tropical areas of the world and require high humidity, which makes them ideal indoor plants. However, they do not like hot temperatures and should be protected from direct sunlight.

Reasons Asparagus Fern Turns Yellow

The leaves of the asparagus fern may turn yellow for several reasons, including poor drainage, over-fertilizing, improper watering and light stress.

In most cases, these problems are easily solved with simple changes to the plant’s growing environment and care regimen.

It’s normal for asparagus ferns to lose their bright green color as they age.

As the plant matures and grows larger, older fronds start turning yellow or brown at the tips.

But if your plant has been healthy up until now, there are other reasons why it might be turning yellow:

Overwatering or underwatering

If you’re wondering; why is my asparagus fern turning yellow. One possibility for your asparagus fern turning yellow or brown is that the plant has been over-watered or under-watered.

Asparagus ferns prefer moist soil but don’t like standing water around their roots — so keep the soil moist but not soggy.

Overwatering can lead to root rot or stem rot if left unchecked.

Stem rot is usually caused by fungi such as Phytophthora cinnamomi or Pythium spp., which attack the plant’s roots and stems but can also spread through the soil and infect other plants in the area.

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If you’re using commercial fertilizer, cut back on how much you give your plant because too much nitrogen will cause the leaves to turn yellow.

Instead, opt for organic fertilizers like compost or manure because they contain more nutrients than synthetic ones do.

Sunburn or Insect damage

If you notice that your fern has yellowed over time and not just at the base of its stem, then it could be suffering from sunburn or insect damage from something like spider mites.

If your asparagus fern has been damaged by insects or fungus, then it may need to be treated with fungicide or insecticide depending on what type of plant bug has infested it.

Yellowing can also occur if the plant does not receive enough light or if it is exposed to direct sunlight for too long a period of time.

Asparagus ferns prefer bright indirect light rather than direct sun, which will burn their leaves or scorch the soil around the base of the plant if left in direct sunlight for too long.

If you suspect your plant may be getting too much sun, simply move it further away from any windows that receive direct sunlight for at least part of each day.

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Light Stress

If your asparagus fern doesn’t get enough light, it may start turning yellow in color, especially if you’re growing it in an area where there is low light exposure or on a north-facing windowsill.

Another possibility is that the plant is too close to the light source in your home.

Asparagus ferns need plenty of light but not direct sunlight; they can burn if left in direct sunlight for too long.

If your asparagus fern tends to turn yellow and brown in one area (rather than throughout), then this may be an indication that there’s not enough light available for it there.

You can move it farther away from any bright lights.

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Poor drainage

Another common cause of yellowing is poor drainage.

Asparagus ferns need plenty of moisture but should not sit in water or soggy soil for long periods of time.

When the roots are sitting in waterlogged soil, they will begin to rot and turn brown or cause other problems that kill off new growth at its base.

If this happens, you’ll notice that your asparagus fern has stopped growing new leaves and new fronds may look limp or discolored at their base.

You should allow the soil to dry out completely between waterings.

Asparagus plants need good drainage, so make sure that you don’t overwater them and that you water only when the soil is dry (usually once per week).

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Plant Overview:  Asparagus Ferns

With proper care, asparagus fern can be very long-lived.

However, it may become yellowish if you don’t provide it with the right amount of light and water.

The most common type of asparagus fern is the variegated variety, which has splotches of white, cream, and green on its leaves.

The variegated asparagus fern also has pinkish stems and leaflets.

The Asparagus Fern (Asparagus densiflorus) is a popular houseplant in the United States.

They’re popular because they’re beautiful, easy to maintain, and are also good for beginners.

The Asparagus Fern is a perennial plant that can grow up to 3 feet tall.

The plant branches out into multiple stems, which are covered in tiny, feathery green leaves.

The stems are also covered with light brown scales that look like tiny pine cones.

Asparagus ferns are a beautiful addition to any home or garden.

The plant has long, thin leaves that grow in clusters and can be used as an ornamental plant or as a food crop.

Although asparagus ferns are easy to grow, they can be prone to some common issues.

Asparagus ferns have small white flowers that bloom in the spring and summer months.

When they bloom, they produce bright red berries that last through the winter months.

Asparagus ferns need lots of sunlight and moist soil conditions to thrive indoors.

They do best when they’re kept at temperatures between 60°F and 75°F during the day and no cooler than 55°F at night.

They also prefer humid environments because they come from tropical climates where it rains frequently.

If you want your asparagus fern to stay green all year long, you’ll need to provide it with plenty of water and fertilizer every few weeks during the growing season (spring through fall).

During winter months when your asparagus fern isn’t growing

Asparagus ferns are a favorite for their long-lasting foliage and ease of care.

They are also very tolerant of neglect, so it is common to see them in many homes and offices.

Light Requirements

Asparagus ferns need bright light but not direct sunlight.

The plant will turn yellow if it doesn’t get enough light.

If you have an asparagus fern that is turning yellow, move it away from any obstructions that might block light from reaching its leaves.

Water Requirements

Asparagus ferns require moist soil but should not sit in water for more than 24 hours at a time because this can cause root rot.

If your asparagus fern turns yellow, check the soil for dryness before watering again. If the soil is dry, add water until the excess drains from the bottom of the pot or container.

Be careful not to overwater your plant; this will lead to root rot or other fungal diseases like leaf spot or powdery mildew on leaves


Hopefully, this article has successfully shed light on the question; why is my asparagus fern turning yellow. With a little TLC, your plant will be back to its best in no time.