Consistent watering – Bottom watering provides an even distribution of moisture throughout the entire mass of soil. Top watering can result in dry spots, but this isn't an issue when water is slowly absorbed from the bottom. You can be assured your plants are getting enough water.
Can you over water by bottom watering? Yes, if the plant is sitting in water too long, you can still overwater your plant through bottom watering. However, bottom watering is a more controlled method of watering your plants.
After 15 to 20 minutes, the plant will have absorbed the exact amount it needs—never too little or too much. There are some other benefits of bottom watering plants, too. One being that it's great for plants that develop root rot quickly.
Watering from the top down can help flush excess salts and mineral deposits to the bottom of the pot and eventually out of the drainage holes. Constantly bottom watering will keep these salts and minerals in the potting mix, so top watering can help keep the root system of your plants healthier.
These plants are prime candidates for bottom watering: Plants with hairy or fuzzy leaves, such as African violets, or plants that don't like getting their leaves wet, such as snake plants, Philodendron verrucosum, and P. micans.
The main drawback of bottom watering is potentially overfertilizing your plant. Because the soil isn't getting flushed from the top, minerals may build up in the soil, which can cause symptoms of nutrient excess or even chemical burn to the roots.
The downside of bottom watering plants
In terms of plant health, there aren't a lot of drawbacks to watering plants from the bottom. However, one consideration would be that continual bottom watering could lead to a build up of minerals and excess salts in the growing medium, especially if you're using tap water.
Water Slowly
If the soil surface is dry, water may puddle or run off and not be absorbed. The solution is to start slowly and gradually build up to a thorough soak. Once the top few inches are moist, the water will be absorbed more easily.
The best way to give your plants a drink is to put water on the soil near the base of the plant with a hose or watering can. Don't dump water on the plants from above. And do not use overhead sprinklers.
Bottom watering has advantages such as preventing mineral deposits on leaves and reducing the risk of fungal diseases. Additionally, it promotes healthy root growth by encouraging roots to reach deeper into the soil.
Soaking the soil to a depth of 5 to 6 inches encourages plants to grow deeper roots, which in the long run will make for a healthier garden. DON'T water lightly and often, which promotes shallow root growth.
Bottom-watering, sometimes called reverse watering, is when you place a plant in a bowl of water, allowing the soil and roots to soak water from the bottom up. (Naturally, your pot needs to have drainage holes for this to work.)
This is a method of watering plants from the bottom up. When you water potted plants from the bottom up, their roots get stronger because they're always growing directly down toward the moisture. Plus, you'll always know the moisture in the potting soil reaches all the way to the bottom of your plants' roots.
“Bottom-watering” is when you put your parched plant in a bucket of water and let it soak up what it needs through the drainage hole. (It's very fun. “Like a magic trick,” said Adams.) This keeps the top of your soil dry and therefore gnat-egg-proof.
The best time to water plants is in the morning or evening.
Morning watering is actually preferable to evening watering as the plant has time to dry before the sun goes down. At night, water tends to rest in the soil, around the roots, and on the foliage, which encourages rot, fungal growth, and insects.
Essentially all of the water used by land plants is absorbed from the soil by roots. A root system consists of a complex network of individual roots that vary in age along their length. Roots grow from their tips and initially produce thin and non-woody fine roots.
The best time to water your garden in summer is from 6 am to 10 am—before the heat of the day sets in, giving your plants plenty of time to drink up and any moisture on the leaves to dry off before nightfall. What is this? If watering in the morning isn't possible, the next best time is from 4 pm to 7 pm.
Wetting leaves.
Plants get their moisture through their roots, not their leaves. Direct watering to the soil surface and avoid wetting leaves because water helps spread some plant diseases. Use a watering wand to reach ground level or a soaker hose or trickle irrigation system to wet the soil rather than the leaves.
By regularly spraying your houseplants with water, you raise the humidity around their leaves, keeping delicate species from the tropical regions of the world happy in distinctly untropical homes.
Soaker hoses take longer to saturate the soil than sprinklers, but they use less water. Expect to run your hoses for 15 to 20 minutes per day, three to five days per week in peak summer heat. In drought conditions, you may need to water up to 45 minutes every day. This should keep the ground moist but not muddy.
Because the water isn't going top-down, it doesn't remove any salts from the soil. Bottom watering is more time-consuming—you have to check your plant, fill the tray, wait for it to absorb, and drain the excess as well. We'll be honest: for larger plants, this method can take quite a bit of time.
– Most houseplants prefer warm or tepid water over cold water, which can shock your plant. Warm water absorbs into soil best. – Some houseplants are sensitive to tap water. Let water sit overnight for chlorine to dissipate before using.