How to revive Hibiscus plant ?

VijayWani

Two years ago, I planted a hibiscus plant in the ground, and it grew beautifully until about 3 or 4 months ago. Around 3 months back, I noticed the leaves turning yellow and dropping off. Now, it has completely defoliated. While the branches look dry on the outside, one branch still has some green on top, and performing a scratch test on the other branches reveals healthy green wood underneath. I am attaching some photographs of its current state and would appreciate any advice on how to successfully revive it.

EricL

Hello @VijayWani

There are some encouraging signs with your hibiscus. The fact that your scratch test is revealing green, moist-looking wood beneath the bark means those stems are still alive, so I would certainly give the plant an opportunity to recover. Hibiscus can shed most or even all of their leaves when they experience a period of stress, and they can sometimes look remarkably bare before producing fresh growth again.

From the photo, I would start by tidying the area immediately around the base of the plant. Gently remove the grass and weeds so they are not competing with the hibiscus for moisture and nutrients. I would also pull some of the stones back from around the trunk to expose a small area of soil. This will make it much easier to check the soil moisture and ensure water is reaching the root zone rather than simply running through or around the rocks.

As we are coming into spring, this is a very good time to encourage the hibiscus back into active growth. Check the branches individually with your scratch test, starting near the tips and gradually working towards the main stems. Wherever you find healthy green tissue underneath, retain that section. You can prune the branches back to just above healthy green wood and a suitable bud or node. A moderate prune will also encourage the plant to produce fresh shoots as the weather warms.

Watering will be particularly important during its recovery. Give the soil a slow, thorough soaking so moisture penetrates deeply around the root zone, then allow the upper few centimetres of soil to become reasonably dry before watering again. Hibiscus appreciate consistent moisture during active growth, while soil that drains freely provides the roots with a healthy balance of moisture and air. The drip line visible in your photo can be useful, although I would check that it is actually delivering enough water across the root zone rather than concentrating it in one small spot.

Once you begin seeing fresh buds or new leaves appearing, you can give it some gentle nutritional support. An appropriate controlled-release fertiliser for flowering plants or hibiscus, applied according to the label directions, can help support the new growth. I would wait for those first signs of active growth first before giving it a substantial feed, as the plant can then make better use of the nutrients.

It is also worth keeping an eye on how much sunlight the plant receives and whether anything has changed around it over the last few months. Hibiscus generally enjoy plenty of sunshine and warmth. With green tissue still present under the bark and spring conditions arriving, I think it has a worthwhile opportunity to reshoot. Keep the root zone clear, give it consistent deep watering, prune back to healthy wood and watch closely over the next several weeks for those first little green buds, they will be a very welcome sign that your hibiscus is getting underway again.

If you have any other questions we can help with, please let us know.

Eric