How to deal with root rot in nasturtium? A detailed guide to the latest remedies

Nasturtium likes a mild climate and cannot tolerate severe cold or intense heat. When grown in pots, it needs loose, breathable soil. It likes moisture but fears both drought and waterlogging, all of which is to prevent root rot. What should you do if many friends encounter root rot while growing it? Let's take a look together.

1. Causes of root rot in nasturtium

1. Waterlogging

From its name we can see that it is not suited to growing in water. A bit of water will prevent its root system from breathing normally, and over time this will suffocate and kill it, causing the roots to rot. This is especially true after flowering, when too much water can very easily cause its roots to become waterlogged and rot.

2. Excessive fertilizer

No flower should be fertilized with too high a concentration, nor with too much fertilizer at one time. Although fertilizer can promote plant growth, it is still human intervention. If there is too much intervention, it will not necessarily make nasturtium grow better and may even have the opposite effect. Root rot is one manifestation of this.

2. Solutions

1. Prune the rotted roots

When nasturtium develops root rot, first take the plant out of the potting soil, promptly remove the rotted roots, and spray the roots with carbendazim to disinfect and sterilize them, then place them in a shaded spot to dry for a day. When removing it from the pot, be careful, because the stems of nasturtium are rather fragile, so take great care to avoid breaking them.

2. Replace the potting soil

After pruning the rotted roots, you cannot simply leave it alone. You also need to prepare new potting soil for it and continue care. Nasturtium can generally be grown in a mix of leaf mold, river sand, and bone ash as the substrate. After mixing, the soil must be disinfected to avoid a second infection, and then the plant should be repotted for continued care.

3. Control water and stop fertilizing

Root rot caused by improper fertilizer and water management cannot be solved only by pruning and renewing the plant and replacing the potting soil for care. You also need to control water and stop fertilizing during later growth. Wait one week before giving it appropriate watering, and wait until the plant regrows roots and gradually recovers its vitality before applying fertilizer again for continued care.

4. Control temperature and keep warm

Nasturtium generally needs to be placed in sunlight, and only in sunlight can it grow better. After treating root rot, it first needs to be kept in partial shade. If it is winter, you can place it directly in sunlight, and at the same time make sure the temperature stays above 5 degrees so it will not freeze to death.

The above is an introduction to how to deal with root rot in nasturtium. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.