Planta Discover

How to Water a Sunflower

Udgivet November 20, 2025

How to Water a Sunflower

How to water

Feel the soil; it should be a bit moist but not wet when watering it again. Squeeze a bit of soil between your fingers, if water seeps out it’s still wet.

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

It might actually be a bit tricky to overwater a sunflower that's placed in spot that's bright enough but they doesn't like to swim either so just keep an eye on the soil.
— 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 the plant back in the cachepot or on the tray

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

Ofte stillede spørgsmål

When should I water my Sunflower?

Water your Sunflower when the soil feels a bit moist but not wet. You can test this by squeezing a bit of soil; if water seeps out, it's still too wet to water.

Can Sunflowers be overwatered?

Yes, while Sunflowers in a bright spot can be tricky to overwater, they don't like to sit in water. Always remove collected water from drainage trays, and avoid letting the plant stand in water after a water bath.

Should I always bottom water my Sunflower?

No, bottom watering does not remove salts and minerals from the soil. It's important to water your Sunflower over the soil every now and then to flush these out.

What should I do after watering my Sunflower?

After watering over the soil, remove any collected water from the drainage tray. If you used a water bath, check after an hour to ensure the plant is not standing in water, which could lead to overwatering and rot.

How to water a Sunflower over the soil

  1. Pour water over the soil, using a watering can or by placing 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, make sure you remove all the collected water afterwards.

  4. If you watered under a tap, ensure water has stopped running out from the bottom before putting the plant back.