Do self watering pots need a wick?
Christopher Pierce
Updated on April 27, 2026
When setting up a self-watering pot, you need to make sure that the wicks reach to the bottom of the reservoir so they will always be in contact with the water, even when the water level is low. At the top end, the wicks should extend into the potting soil rather than sitting on the bottom of the growing bed.
How do you water plants with wicks?
Fill a small saucer with water and place the container inside or above, allowing the wick to sit in the water. The wick will then pull the water the plant needs directly into the soil. Replace the water in the saucer whenever it evaporates. Lantern wick can be purchased at local hardware stores.
How does a wick and grow planter work?
The “wick” of Wick & Grow™ is a simple little string inserted into the bottom of the pot that allows plants to drink up water from a reservoir in the base of the container. Like a straw, the plants’ roots use the wick to take sips of water when the plant is thirsty. It’s nothing short of brilliant.
What is the best wick material?
Cotton is a commonly recommended wicking material, but some warn that natural materials, like cotton, may rot or contract fungus easily. Wicking materials less likely to encounter this problem include nylon and acrylic.
Is wicking good for plants?
Plant wicking is great for your houseplants, but it’s also an excellent method for your thirsty vegetable plants as well. Wick watering tomatoes, peppers and other vegetables can be done in homemade self-watering containers. Wick watering tomatoes is similar to wick watering houseplants.
How far will water wick soil?
When designing your wicking bed, it is important to keep the depth of the media-filled water reservoir at or below 300mm as the capillary action struggles to lift the water higher than that. The soil above the reservoir acts as a wick as well, so it is important that the soil layer stay between 300 – 320mm.
What is the best wick for self watering planter?
What is wick feeding?
A wick system works by “sucking” or wicking up nutrient solution like a sponge and feeding it up to the plant. This process of “sucking” or wicking up water is a scientific principle known as capillary action. In an example of a basic wick system, a reservoir is filled with nutrient solution.
Should you put rocks at the bottom of a planter?
In general, it’s not necessary to put rocks in the bottom of plant pots. One rock to cover the drainage hole is enough – just enough so that the soil doesn’t leach out of the bottom but water can flow freely through the pot. Putting rocks in plant pots doesn’t aid drainage or improve air circulation.
How does a wick watering system for potted plants work?
How It Works. A wick watering system for potted plants employs a soft fabric string or ribbon, known as the wick. You’ll find one end of the wick buried in the potted plant’s soil, with the other hanging in a bucket or pot of water. Water flows up the wick through a scientific principle known as capillary action and waters the plant with just…
What is the best material to use for a water Wick?
Cotton is usually best, but if water will wick, it doesn’t matter what material is used. Make each wick long enough to reach from the bottom of the water container to the plant. The end that goes to the plant will need to be in the soil an inch or two, and the wick needs to be fairly taut.
How do you make a weighted Wick for plants?
Tie a weight to the end of a strip of fabric or shoelace, making one strip per plant. Bury the other end of a strip about 3 inches deep in each pot, placing it about halfway between the stem and the outside of the pot. Place the weighted ends of all the wicks in the bucket, and fill the bucket with water.
How many Wicks do I need to water my plants?
For example, I placed two wicks in the container with rosemary and thyme. These two plants require less water. In the other containers, with kale, parsley, marigolds and nasturtium I placed three wicks. Determine the size of your reservoir (e.g. bucket).