Tomato plants can fully recover from overwatering if you take action as soon as you spot the signs. To save your tomato plant, remove it from the soil using a garden fork or trowel. Next, clear as much dirt away from the soil as possible, using your hands or running the root system under the faucet.
Tomato plants recover quickly from overwatering, usually in one to two weeks with treatment. How often should you water tomatoes? In the garden, water tomato plants deeply at the soil level once a week or twice weekly during hot weather depending on rainfall.
The good news is that most plants will bounce back between 7-14 days if they're given proper care (which includes rehydration). If this isn't possible because major damage was done or little healthy root system exists then expect about 2 weeks until improvement can be seen.
While underwatered foliage will be dry and crispy, overwatered tomato plants will usually have soft and mushy leaves or stems. The issue lies in root health. When you overwater, you limit the amount of airflow around the roots, essentially suffocating them.
Plants may wilt badly when soils are dry, but will revive rapidly when they are watered. A thorough watering once a week during hot, dry weather should be sufficient. Apply water directly to the soil around the base of the plants with a garden or soaker hose.
Water correctly: Do not overwater. The first week tomato plants are in the ground, they need water every day, but back off watering after the first week, slowly weaning the plants down to 1 to 1.5 inches of water per week.
The faster their soil dries out, the better these plants recover. To speed up the process, place a sheet of paper towel under or around the root ball. After a few hours in the shade and in the open air, the soil will be dry. You can then return the plant to its container.
The first step in saving your overwatered plants is to determine how badly they have been affected. If your plants are showing some yellowing but have not yet started to wilt, you can save them by beginning to water them properly. If wilting has started to occur, you will need to work harder in order to save them.
Over-watering.
Leaves might yellow and wither, or they could curl.
In the very least, a new central leader will emerge and become the new main stem. Tomatoes are notorious for producing lots of “sucker” stems throughout the season, so you can count on something taking over for the lost main stem. You just need to be patient while the new stem develops.
The most distinctive symptoms of Phytophthora root rot are the brown lesions on roots of all sizes. The xylem of the roots above the lesions often turns yellowish or brown. In severe cases, nearly all roots may be girdled or rotted off. Aboveground, infected plants are slow growing and may wilt or die in hot weather.
Soil that contains a lot of sand doesn't hold water well and dries quickly. Because of this, tomato plants growing in sandy soil may need to be watered more often, about every three or four days. Clay soil, on the other hand, holds water well. Plants growing in clay soil usually only need to be watered once a week.
To dry out soil quickly, you can apply hydrated lime to the soil, add compost and then turn the soil thoroughly to aerate it. Adding hydrated lime and compost will help absorb the water in your soil, and turning it all will help distribute the water in the waterlogged soil throughout your garden.
If the plants are showing some yellowing and you know they have been watered too much, but they haven't started to wilt while wet, simply start following proper watering techniques (Click Here) and your plant should bounce back. Hold off on any application of fertilizer until you see new growth.
How to check for root rot. The main signs to look out for are: yellowing, wilting leaves, wet soil that isn't drying, black, wet roots, quickly declining health, and stunted growth.
This smell is a result of the bacteria that grow in anaerobic conditions, like the bottom of a pot with wet soil and nowhere for the water to go. Shake off as much soil from the plant's roots as you can, then rinse them under running water. Gently massage the roots to loosen up any dead sections.
Overwatering generally makes the plant look almost like it's rotting, as in drooping and turning soggy brown. My guess is it is having Nitrogen problems. Any type of vegetable fertilizer you buy at the store should work fine.
The advantage in removing the lower leaves is that the plants energies go into producing fruit rather than a lot of foliage. Also the lower leaves tend to get powdery mildew so it is good to remove them to stop disease spreading.
Drip irrigation has emerged as one of the most efficient methods for irrigating tomatoes.