NOTE: In this article, Lisbon lemon tree and Citrus x limon ‘Lisbon’ may be used interchangeably; in fact, Citrus x limon ‘Lisbon’ is the botanical name for Lisbon lemon tree.
If you live in a hot and dry region, you can grow Lisbon lemon trees outdoors. Lemons can be found on the tree throughout the year, even though the main crop is Harvested in the winter. In colder climates, these trees can be overwintered indoors.
Why does my Citrus x limon ‘Lisbon’ roots have rot?
Root rot on your Lisbon lemon tree (Citrus x limon ‘Lisbon’) can be fatal if not treated with care. For this reason, we strongly recommend that you follow our guide to keep your plant alive if the symptoms occur: Root soft and blackened.
Why does my Lisbon lemon tree have gray mold spots?
Gray mold spots are a type of fungus that is found a lot in flowers, and spreads quite rapidly. If you notice brown (or gray) spots, it is probably this fungus. Don’t ignore these symptoms, as they may end up killing your plant.
Our Solution
The solution is quite logical when you know the cause of the problem. Most of the time, it is due to overwater of the Citrus x limon ‘Lisbon’. We advise you to remove the infected parts of the plant, cut off the infected roots and leaves, then repot your plant using sterile potting soil and a clean pot.
Why does my Lisbon lemon tree have leaf spots?
We provide you with all the information you need to identify and save your plants if they display signs like leaves that suddenly change color or wilt/droop. This sort of sickness is one of the most aggravating for Lisbon lemon tree owners.
Why are my Lisbon lemon tree leaves turning yellow?
This is probably the most common problem in the gardening world, yellowing leaves. There are 2 main reasons for this phenomenon, overwatering, or a lack of nutrients.
Reduce your watering frequency when you fear your plants are being overwatered, and follow these steps to determine whether they may be lacking in nutrients:
Here are some indicators of yellowing on the Citrus x limon ‘Lisbon’ brought on by its numerous flaws:
- Yellow patches between leaf veins on elder leaves are the first sign of magnesium shortage. Veins continue to be green while the leaf’s core turns yellow. The leaf’s edges yellow last.
- Iron deficiency also shows as yellowing between leaf veins, but it hits young leaves on plant tops and branch tips first.
- The newest leaves are first affected by sulfur deficiency, rendering them completely yellow.
- Leaf edges turning bright yellow but inside leaf remaining green are signs of potassium insufficiency. The symptoms first appear on older leaves, and the leaf edges quickly become dark.
- A lack of nitrogen is indicated by a widespread yellowing. Older, inner leaves are the first to yellow. As the yellowing progresses, it eventually touches young leaves as well.
Our Solution
You only need to act in accordance with the symptoms listed above. You can address a potassium or nitrogen deficiency by buying a particular soil, and a gardening store consultant will be able to advise you on how to do that. Furthermore, you can also limit how frequently you water your plants.
Is my Lisbon lemon tree sunburned?
It is quite easy to find out if your Lisbon lemon tree (Citrus x limon ‘Lisbon’) has been burned by the sun. Just like on us, your plant will change color in this case, it will start to turn yellow or white.
The leaves of your Lisbon lemon tree can also change color in case it gets too much water or not enough light, as we saw above.
However, there is a way to tell if it is sunburn; look at the bottom of the yellow leaves, the ones that have a shaded area closer to the root, if this area stays greener, it is probably sunburned, not something else.
Why are my Lisbon lemon tree leaves turning brown?
Most of the time, leaves of a Lisbon lemon tree that turn brown is a sign that your plant has been sunburned, it has probably been exposed to too much direct sunlight. Don’t panic, your plant probably won’t die from this, but its growth will take a hit.
Should I leave my Citrus x limon ‘Lisbon’ in direct sunlight?
No! Don’t leave your Citrus x limon ‘Lisbon’ (or Lisbon lemon tree) in the sun if it displays the symptoms mentioned above; that’s why it’s in such a bad situation.
Our Solution
As stated in the paragraph above, the cure is straightforward: simply position your plant’s Lisbon lemon tree so that it is out of direct sunlight. With proper watering and this method, your plant should quickly come back to life.
Why are my Citrus x limon ‘Lisbon’ leaves drooping or wilting ?
In most cases, this happens when your Citrus x limon ‘Lisbon’ lacks water. This is especially the case for large plants, naturally they need more water than others.
You may quickly determine if your Citrus x limon ‘Lisbon’ plant needs water by under-weighing its pot; if it seems light, the soil and roots are probably fairly dry and require water.
Our Solution
In order to ensure that the roots of your plant receive the water’s benefits, you must first moisten the soil in the container if it is absolutely dry. One common error is to immediately drown the Lisbon lemon tree after a dry period in the belief that it requires a lot of water.
This is the case, but giving too much water at once is the best way to finish it off, you should actually water the soil normally, resuming a quiet watering rhythm.
Caring Tips for Citrus x limon ‘Lisbon’
Water Occasionally
Water is essential to the survival of your plant, however, it is important to balance the rate of watering. As we explained above, overwatering could have fatal consequences for your Citrus x limon ‘Lisbon’.
You can tell if your plant needs water by touching the soil; if it still feels damp, it’s usually preferable to wait a few more days.
Always keep temperatures stable
Maintaining a consistent temperature for your Citrus x limon ‘Lisbon’ is also a good idea, especially if it is kept indoors. At GreenShack, we typically advise reserving a temperature between 65 and 85 degrees F. Of course, avoid positioning your Citrus x limon ‘Lisbon’ close to air conditioners, radiators, or other sources of hot or cold air.
Keep your Lisbon lemon tree Dust-Free
This one is about houseplants. Your indoor plants’ leaves get dusty just like your furniture does. The problem is that this might prevent photosynthesis from beginning, which would result in the plants gradually losing their color.
For your Lisbon lemon tree, this would be a true descent into hell, and it would also appease the pests.
To remove the dust, gently rub the plant’s leaves with a microfiber cloth. Dust can be removed more easily with a damp cloth, but stay away from corrosive substances like rubbing alcohol!
Keep drainage in mind
If you tend to overwater, you need to pay attention to your drainage, and we advise choosing a saucer and a pot with drainage holes if they are not already there.
In the meantime, if you don’t have holes in your pots, you can add volcanic rocks (or any rocks with holes) at the bottom of your pot, this way it will create a channel so that the water doesn’t stay in your skin too much (to avoid that roots start to rot!)
