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.
Add Organic Material
Aside from adding fertility, organic material is also great for breaking up heavy dense soils. By mixing and bonding with soil particles it allows for more air space and drainage. As a side note adding organic material can also help dry soils hold moisture.
Insert a trowel into the soil, then tilt the trowel to check the moisture of garden plants. You can also insert a wooden dowel into the soil to determine the depth of soil moisture. If the dowel comes out clean, the soil is dry. Damp soil will cling to the dowel.
Using a hairdryer directly on the soil is an easy way of removing that excess moisture easily. However, there are some things to take into consideration when doing so. When directed at the soil the dryer will only remove the moisture from the surface having the rest of the soil wet.
Stick your finger 1–2 inches (2.5–5.1 cm) into the soil. If the soil feels dry or if it falls off of your finger when you remove it, the soil may be dry. If the soil feels moist or if the soil sticks to your finger, the soil may be moist. Identify dry soil by its light-colored, compacted appearance.
The soil in your garden should take about a week to dry out after normal watering. If the soil is still wet for more than a week, without outside contributing factors like rain or flooding, there might be a waterlogging or drainage problem.
You can do the ball test to see if the time is right. Dig some soil and form a tight little ball in your hands. Press your fingers into it. If it stays together it's too wet.
Wet soil can mean the death of many landscape plants — due not only to excess water but also to lack of oxygen. Plants that can't tolerate such conditions usually die of suffocation. Improving drainage in the area is always a plus; consider installing a French drain, a wet-weather bed or raised beds.
The goal is to water the soil well to saturate it into the planting root zone. And give the soil plenty of time to drain slightly but not dry out completely before you plant.
If your potting soil has been sitting in your shed since last year in an opened bag and it's gotten wet, toss it. If it somehow stayed bone dry, it should be OK to use.
The Finger Test. Simply stick your finger into the dirt as far down as you can and see if the soil is dry. When you remove your finger, any soil sticking to it indicates moisture. When your finger comes out relatively clean, it's time to water.
When a plant is first becoming overwatered, leaves turn yellow. If soil doesn't have a chance to dry out before you water again, leaves start to wilt. When overwatering is the problem, wilted leaves are soft and limp. (If too little water is the issue, wilted leaves are dry and crispy.)
Just dip your index finger into the soil near the stem of your plant up to about your first knuckle. If the soil feels dry, and your finger comes out clean, then it's probably time for some water.
Soil can be wet because it is compacted, or because of a high water table, where the upper level of the ground water is near the soil surface. Clay soils are wet in winter and baked dry in summer. Unless you install drainage, you will need to work with your soil and choose plants adapted to wet conditions.
Excess moisture, also known as moisture stress, can be caused by inadequate water drainage or a pot without any holes. A few things that encourage the growth of fungus include dense soil, a lack of drainage holes, and the wrong pot size.
Moderate sunlight can be beneficial for soil because its warmth encourages beneficial soil microorganisms to be more active. However, too much sunlight on uncovered soil will make it dry out faster, kill microorganisms, and remove essential air pockets.
Collect some soil in your hand from the depth of the field where you are planning to plant the seed. Now try to squeeze the soil in your fist. With excess moisture and soil is able to cling to your palm, then the soil maybe too wet and not suitable for planting seeds.
So is planting vegetables in wet soil really all that bad? Unfortunately, the answer is yes. Planting when soil is wet destroys the healthy soil structure you've worked so hard to build. The result is compacted soil which can take years to repair.
If you walk across your lawn and the ground feels spongy and has a lot of give in it, you are likely overwatering. Watering less often and allowing the soil to dry out before watering again actually encourages grass roots to grow deeper to find moisture.
It Grows Mold
Mold is another sure sign that your potting soil has gone bad. Mold usually grows on the surface of the potting soil and can be white, gray, yellow, or green. It can also be fuzzy or have a slimy texture. Mold will often form if the potting soil is too moist or has been wet for too long.
Often, soil is dried in an oven in the laboratory. This is usually at 105°C for measurement of the total water content (Topp et al., 2008), but may also be at lower temperatures to remove part of the water.