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How to Water Tomato Plants for Healthy Growth

Udgivet November 20, 2025

How to Water Tomato Plants for Healthy Growth

How to water

Tomatoes really love water and do not like to dry up too much! It’s hard to overwater a tomato plant, but even a water-loving plant can get overwatered. Always feel the soil before watering - it should feel a bit dry or moist but not wet. There are several ways to water your tomato plant - they aren’t very picky as long as they get a lot of water. Choose a way that suits you the best.

If the soil is wet - snooze this action, we will remind you again in 2 days.

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Water over the soil

  1. Pour water over the soil, using, for example, a watering can or put the plant directly under a tap

  2. Continue adding water to the pot until it starts to run out from the drainage holes

  3. If you have a tray under the pot when watering, make sure you remove all the collected water afterwards - never let your plant sit in water

  4. If you watered under a tap make sure that water has stopped running out from the bottom before putting it back

Plants that need a lot of water, like tomatoes, also need excess water to run out somewhere. Always make sure that your plant is planted in a pot with holes.
— Planta tip

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Bottom watering

  1. Fill the plant tray with water

  2. Make sure the soil is in contact with the water on the tray

  3. Wait for about 10 minutes

  4. Feel the soil to see if it absorbed enough water —> if the soil is moist throughout, remove any excess water from the tray

  5. If it’s still dry —> add more water to the tray

  6. Wait 20 more minutes before removing the excess

Note

Bottom watering will not wash away salts and other minerals from the soil, so make sure to also give water over the soil every now and then.

Water bath

  1. Fill a bucket or any other vessel with lukewarm water

  2. Lower the whole pot down in the water, stop where the stem of the plant starts. Make sure all of the soil is under water

  3. The water will now start to bubble - wait until it stopped

  4. Lift the pot up and let the excess drain off

  5. Put your plant back in the cachepot or on the tray

  6. After 1 hour, check that your plant isn’t standing in water, if it is it might get overwatered and rot

If tomatoes get to choose, they like being watered slowly: they don’t like to rush watering. Some use a drip hose or other forms of drip irrigation to water their tomato plant.
— Planta tip

Ofte stillede spørgsmål

How do I know when to water my tomato plant?

Always feel the soil before watering; it should feel a bit dry or moist but not wet. If the soil is still wet, wait a couple of days before checking again.

What are the common ways to water tomato plants?

You can water your tomato plant by pouring water over the soil, using a bottom watering method, or giving it a water bath. Tomatoes are generally adaptable as long as they get sufficient water.

Is it okay for my tomato plant to sit in water?

No, never let your tomato plant sit in collected water in a tray after watering. This can lead to overwatering and root rot, so always ensure excess water is removed.

Why is proper drainage important for tomato plants?

Tomato plants need a lot of water, but they also require excess water to drain away. Always make sure your tomato plant is in a pot with drainage holes to prevent the roots from sitting in water.

Can I only water my tomato plant from the bottom?

Bottom watering is effective, but it does not wash away salts and other minerals from the soil. It is recommended to also water your tomato plant over the soil occasionally to help flush out these accumulations.

How to Water a Tomato Plant

  1. Feel the soil to check its moisture; it should be a bit dry or moist, but not wet.

  2. Pour water directly over the soil using a watering can or by placing the plant under a tap.

  3. Continue adding water until it begins to drain out from the bottom of the pot.

  4. If watering with a tray, make sure to remove all collected water to prevent the plant from sitting in it.

  5. If watering under a tap, wait until water has completely stopped running out from the bottom before moving the plant.