Sunburst honey locust: Diseases and Remedies (Gleditsia triacanthosvar. inermis’Suncole’)

NOTE: Sunburst honey locust may be referred to as Gleditsia triacanthosvar. inermis’Suncole’ in this article, in fact, those are the same plants, Gleditsia triacanthosvar. inermis’Suncole’ is the botanical name for Sunburst honey locust.

The native honey locust tree has thorns and seedpods that can cause major clean up issues, which limits its appeal for homeowners. There are a number of thornless honey locust cultivars that are more suitable for landscape use.

Why does my Gleditsia triacanthosvar. inermis’Suncole’ roots have rot?

Root rot on your Sunburst honey locust (Gleditsia triacanthosvar. inermis’Suncole’) 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 Sunburst honey locust have gray mold spots?

Gray mold spots are a specific fungus that regularly harms flowers and spreads swiftly. If you notice any brown (or gray) spots, this fungus is probably to cause. You risk your plant dying if you ignore these warning indications.

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 Gleditsia triacanthosvar. inermis’Suncole’. 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 Sunburst honey locust have leaf spots?

Leaf If your plants exhibit symptoms like rapid color changes in the leaves or leaves that wilt or droop, we give you all the information you need to recognize them and rescue your plants. For owners of Sunburst honey locust, this kind of illness is among the most distressing.

Why are my Sunburst honey locust 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:

Each deficiency produces a different yellowing on the Gleditsia triacanthosvar. inermis’Suncole’ in question, here’s how to spot them:

  • The first symptom of a magnesium deficiency is yellow patches between leaf veins on elder leaves. The leaf’s core turns yellow while the veins stay green. The edges of the leaf 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.
  • Potassium deficiency shows itself when leaf edges turn bright yellow, but the inner leaf stays green. Older leaves show symptoms first, and leaf edges soon turn brown.
  • 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

According to the symptoms mentioned above, you just have to act accordingly. You can reduce your watering frequency, or fix a deficiency in Potassium, or Nitrogen, for that, you just have to buy a special soil for your deficiency, a consultant in a gardening store will know perfectly well how to inform you.

Is my Sunburst honey locust sunburned?

It is quite easy to find out if your Sunburst honey locust (Gleditsia triacanthosvar. inermis’Suncole’) 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 Sunburst honey locust 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 Sunburst honey locust leaves turning brown?

A plant’s browning leaves are typically a symptom that it has been sunburned and has been exposed to excessive amounts of direct sunlight. Don’t worry; your plant probably won’t perish as a result, but its growth will be negatively impacted.

Should I leave my Gleditsia triacanthosvar. inermis’Suncole’ in direct sunlight?

No! If your Gleditsia triacanthosvar. inermis’Suncole’ (or Sunburst honey locust) has the symptoms described above, don’t leave it in direct sunlight, that’s the reason why your Sunburst honey locust is in such a state!

Our Solution

As stated in the paragraph above, the cure is straightforward: simply position your plant’s Sunburst honey locust 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 Gleditsia triacanthosvar. inermis’Suncole’ leaves drooping or wilting ?

In most cases, this happens when your Gleditsia triacanthosvar. inermis’Suncole’ lacks water. This is especially the case for large plants, naturally they need more water than others.


You may quickly determine if your Gleditsia triacanthosvar. inermis’Suncole’ 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

If the soil in the container is completely dry, you must first moisten it to guarantee that your plant’s roots absorb the benefits of the water. One common mistake is to drown the Sunburst honey locust right away after a dry time because you think it needs 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 Gleditsia triacanthosvar. inermis’Suncole’

Water Occasionally

Water is necessary for your plant to live, but timing and amount of watering must be balanced. Overwatering could have disastrous effects on your own name, as we already mentioned.

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 Gleditsia triacanthosvar. inermis’Suncole’ 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 Gleditsia triacanthosvar. inermis’Suncole’ close to air conditioners, radiators, or other sources of hot or cold air.

Keep your Sunburst honey locust Dust-Free

This one relates to indoor plants. Just like your furniture, dust collects on the leaves of your indoor plants. The issue is that this can block the photosynthesis process from starting, which would cause the plants to gradually lose their color.

This would also make the pests happy, a real descent into hell for your Sunburst honey locust.

Take a microfiber cloth and gently massage the plant’s leaves to get rid of the dust. Use a damp cloth to make dust removal easier, but avoid using corrosive materials 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!)