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. There are beautiful pots with no drainage holes in some homes.
Soil not drying out is usually a sign that drainage or evaporation is insufficient, or water use by your plant is reduced. Increase light, ventilation, and temperature to increase evaporation and water use by your plants. Make sure the soil drains thoroughly and the container has drainage holes.
The best soil to work with is moist, but not sopping wet soil. Like moist sand, moist soil keeps its shape pretty well.
One of the most frequent issues plant owners have is overwatering. After watering, the soil around the plant should remain moist for a while to allow the plant to receive the nutrients and water it needs. 2 to 4 hours after watering, the soil should still be moist.
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.
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.
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.
Mold will often form if the potting soil is too moist or has been wet for too long. If you see mold growing on your potting soil, let it dry out for a few days and then check it again. If the mold is still there, you will need to throw away the potting soil and start fresh.
Hydrophobic soil occurs when a waxy residue builds up on the soil particles resulting in it repelling water rather than absorbing it. It is most common in sandy soils, dried out potting mix and soils containing unrotted organic matter. You can identify hydrophobic soil by watering it.
Signs of root rot are slow growth, mushy stems, and wilting, yellow, distorted leaves (especially when the plant has been well watered, as wilting leaves can also be a sign of a dry plant).
Your letting the soil get too dry. The surface tension if water will hold it together on top of the soil because there is no moisture in the soil to break into the surface tension if the water you've just added. Just wait a few minutes and it'll soak in but really you should water a little and often.
The most common remedy for problem soils, whether the problem is soggy clay soils or dry sandy soils, is to add organic matter in the form of compost. Not only does compost help diminish soggy problems, but it also adds a host of other benefits to make your garden healthier and more productive!
– Shelf Life of Miracle Gro Potting Mix
The miracle grow potting soil variant comes with a shelf life of about five years, it is important to know that it contains sphagnum moss, ammonium nitrate, perlite, and compost and can go bad if compromised. Therefore, store them right and use them as per its instructions.
Organic Potting Mix
Plants typically benefit from being repotted every 12 to 18 months, depending on how actively they are growing. Some slow growers, like cacti, can call the same pot home for years, but will just require a soil replenishment.
If it's been awhile, and your plants aren't performing well, maybe it's time you looked into it. Typically, changing the soil in your potted plants should happen every 12 to 18 months. There are some exceptions that may change this timing.
moist. 'High moisture' plants prefer moist soil—not wet soil. Wet soil or fully saturated soil is soil that has all pore spaces filled with water and devoid of air. For example, a sponge that is completely full of water and no air would be considered fully saturated.
How Long Can You Store Potting Soil? Opened bags of new potting soil can retain quality for around 6 to 12 months. For unopened and unused potting soil, you can store it for about a year or two before it goes bad.
The planter is too small — or too big
Alternately, if the plant is staying wet for a long time, that's a sign the pot is too big and you should downsize. Using an oversized container will prevent the soil from drying out properly between waterings, which will lead to root rot.
In most cases, the soil should be damp to the root zone, 6 to 12 inches (15-30 cm.). However, sandy soil drains quickly and should be watered when the soil is dry to a depth of 2 to 4 inches (5-10 cm.). Remember that the need for water also varies widely depending on the plant.
Signs your plants have been damaged by waterlogged soil include: stunting, yellowing leaves, twisting leaves, dropping leaves, soft spongy areas at the base of the plants, wilting despite plenty of water, roots turning dark with a rotting odor.
Hydrogen peroxide can help to control fungal growth and fungal infection, such as root rot, by preventing the growth of fungi. It can also help kill fungus and bacteria on plant roots.
Root rot can be identified by the presence of soft, brown roots. The root system of a healthy plant should be firm and white. But when soil is soggy, fungal spores multiply and the fungus starts to spread3, developing in the extremities of the roots first.