Corkscrew Rush Turning Brown And Control Measures

The botanists refer to twisted or ‘Corkscrew’ rush as Juncus effusus. Based on regions of their growing, the types vary; in hotter areas, they are semi-evergreen but are herbaceous perennial in the northern regions. 

Regardless of the little care required to grow corkscrew rush in your garden, it’s really itchy when this plant starts turning brown, notably if you are no expert.

Not maintaining soil moisture, improper watering, lack of fertilization, or imbalance sunlight can cause your corkscrew rush turning brown.  

While growing corkscrew rush on your own, it will take up to 5-8 years to achieve the ultimate length which is 0.5m in case of indoors. Thus several leaves being put out every year carefully according to necessity, and you can see the result yourself. 

Probable 04 Reasons for Corkscrew Rush Turning Brown

Corkscrew Rush Browning problem

1. Soil Moisture

Evenly moist soil is required throughout the time for the growing corkscrew rush smoothly. Even though the plant is capable of surviving comparatively shorter dryouts, it threatens the foliage to be turned yellow and eventually brown.

The absence of balanced moisture in the plant soil and the probable happening of the yellowed foliage will cost you permanent damage to the very affected leaves. 

Cure And Preventions

The very first thing to do is to take immediate preventive measures. Identify the most affected part or whole leaves and get rid of them if they seem unable to recover. That will reduce your loss.

You need to maintain the watering to balance the soil moisture. You are always welcome to buy a moisture meter (Our pick: SONKIR Soil pH Meter, MS02 3-in-1 Soil Moisture/Light/pH Tester) and act accordingly. Water the plants on a regular basis but ensure watering them less than half of the amount you put during summer or winter, during monsoon. 

You may go for drainage hole-free pant holders for them. But in this case, you need to water them in a moderate way considering that container soil gets dry faster. 

2. Improper Watering

Coming to the very next probability, maintain watering these plants with sincerity. Both over-watering and under-watering might affect the plant and cause you to watch your favorite plant growing brown or yellow. 

Including the water type, the temperature is also a sensible thing for corkscrew rush. Cold water will ironize the roots. And along with that, you’ll have the leaves getting yellowed halos. 

Cure And Preventions

If you continuously use direct tap water, stop it now. At least let the tap water rest for more or less 24h before pouring it to the plant.

Always try to use lukewarm water. That’s the most preferable water for your corkscrew rush. You may try fresh bottled water as well according to your ease. 

3. Lack of Fertilization

Corkscrew rush needs some fertilizers from time to time like once in two months. But failure to maintain such a cycle might get you bad news. You may experience the stems turning brown or yellow.

Despite the little necessity of fertilizers, you can’t help it. You can’t ignore fertilizing these plants unless you want to face difficulties out of various cultivation issues. 

Cure And Preventions

As you encounter nutrient deficiencies, you will see yellowed murky leaf tips. Remove the affected leaf entirely. And put some fertilizers according to necessity.

Apart from ensuring fertilizing the plants every 2 months, refrain from using any fertilizer during winter. And also fertilizing immediately after noticing the signs of lack of nutrients won’t bring you any result rather despair.

Use lukewarm water while fertilizing them. That will appear more handy. An ‘All Purpose’ fertilizer should meet your necessity. (our pick: J R Peters 52024 Jacks Classic 20-20-20 All Purpose Fertilizer)

4. Imbalance Sunlight

According to the type, these plants are light and hydrophilic. But if the sunlight is too much brighter or the opposite, there are consequences to such carelessness.

Direct sunlight during hot days will unease your corkscrew rush and the leaves might start turning yellow or brown because of no shades given to them. Again deprivation of sufficient sunlight for quite a long period can cause similar issues.

Cure And Preventions

The best way to get corkscrew rush proper sunlight is to place it somewhere where the morning and afternoon sunlight rests for 2h each throughout the year.

You may choose to put it by a window or even outdoors. But ensure having a shade upon it considering planting them outdoors.

Don’t swipe between places immediately. If it requires more sunlight or less, make slow moves to make the plants adapt to their surroundings. Though they are fond of sunlight, you must tackle overexposure to the sun. 

How To Repot Corkscrew Rush -Quick Guide

potting Corkscrew Rush
  • You will have to repot your corkscrew rush once every three years according to necessity using a potting mix. You may choose this one for your job. (Our Pick: Miracle-Gro Houseplant Potting Mix).
  • Ensure the next pot with sufficient drainage per your plant. 
  • To avoid the risk of transplant shock, 24h before you tinker, do water and hydrate the plant.
  • You may go for using a bit extra grit and perlite into the deeper part of the soil for a darker location.
  • Pick the right branded compost and pot according to your plant. 

Read More- My Corkscrew Rush is Dying – Reasons and Fixing Guide

Frequently Asked Questions (FAQs)

How Often Should You Water A Corkscrew Plant?

Since both over watering and under watering is injurious to this plant, you should remain cautious while watering them. You need to keep the soil moist by maintaining 40-50% relative humidity. You may have your own ways to increase the humidity surrounding your plant.

How Much Sun Does A Corkscrew Plant Need?

Corkscrew rush is favorable in full sun considering a shade. The imbalance of sunlight might have a notable effect on the appearance of the plant. The interchange between darker or brighter places gradually but not at once. 

Will Corkscrew Grass Come Back?

Being semi-evergreen, the corkscrew rush remains green during winter. But in colder regions, you might face yellowed or browned stems. Get rid of those during early spring and make way for a fresh grow-up. As long as the roots are alive, they are pretty much surviving and ready to surprise you with a grow back.


Now after going through all the possibilities, you won’t have to worry about your corkscrew rush turning brown. You may easily identify the cause and act accordingly.

Water the plants duly and maintain the fertilizing and sunlight – you are good to go. Beware of leaf-spot disease, root-rot, botrytis to keep your plant healthy.

You must not ignore any attack from mealybugs, scale, aphids, or whatsoever though they are highly rare. 

These plants are labeled as poisonous. Even small consumption might affect you with nausea, vomiting, and losing appetite. Keep your pets and children safe from any kind of toxicity.

James Rivenburg
James Rivenburg
James Rivenburg

James Rivenburg is the founder of, a passionate gardener with valuable experience and knowledge gained through trial and error. The website has a large community of followers who trust his tips and techniques and have succeeded with his advice. He is always Committed to helping others create a beautiful and healthy garden.

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