Water geraniums in pots every 2 to 3 days in summer, and geraniums in the ground about once a week. Let the top inch of soil dry before you water again. Geraniums handle a little dryness well, but soggy soil quickly leads to yellow leaves and stem rot.
A starting point, not a rule. Check the soil before each watering and stretch the gap in cool, cloudy weather.
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Geraniums are happiest when you forget them for a day. They bloom best with soil that dries out a little between waterings.
The common bedding geranium comes from South Africa, where it grows in dry, sunny places. Its thick stems hold some water in reserve. Your job is to water deeply, then wait until the top of the soil is dry again.
Geranium watering schedule
| Where it grows | How often |
|---|---|
| Pots and window boxes, summer | Every 2 to 3 days |
| Hanging baskets, hot weather | Every day |
| In the ground, summer | Once a week |
| Spring and fall | Every 4 to 7 days |
| Indoors over winter | Every 2 to 3 weeks |
If you are unsure, wait a day. A slightly dry geranium recovers in an hour. A soggy one can take weeks.
How to tell when geraniums need water
Push a finger about 1 inch into the soil. If it feels dry, water. If it is still damp, check again tomorrow.
The leaves help too. A thirsty geranium has soft, slightly droopy leaves and flower heads that lean. Healthy leaves feel firm and stand up from the stems.
How to water geraniums
- Water in the morning. Plants drink before the heat, and any splashes dry quickly.
- Water the soil, not the flowers. Wet blooms and leaves invite gray mold.
- Soak until it drains. Water until it runs from the bottom of the pot, so the whole root ball gets wet.
- Let the top inch dry. Then repeat.
Signs of overwatering and underwatering
Too much water
- Yellow lower leaves
- Small corky bumps under the leaves
- Black, soft stems at the soil line
- Few flowers and lots of leaves
Too little water
- Drooping leaves and flower heads
- Crispy brown leaf edges
- Lower leaves turning red or brown
- Buds that dry up before opening
Those small corky bumps have a name: edema. The roots took up more water than the leaves could release, often in cool, cloudy weather with wet soil. Water less and the new leaves will grow clean.
Keeping geraniums over winter
Geraniums can live for years if you bring them inside before frost. Cut them back by about a third and set them in your sunniest window.
Indoors, growth slows, and so should your watering. Water only when the soil is dry most of the way down, often every 2 to 3 weeks. In spring, when new leaves appear, go back to a normal routine. They make good summer partners for marigolds, which like a similar sunny, dry rhythm.
Geraniums watering FAQ
Should I water geraniums every day?
No, except in small hanging baskets in hot weather. Most geraniums do best when the top inch of soil dries out between waterings.
Why are my geranium leaves turning yellow?
Overwatering is the most common cause. Let the soil dry more between drinks and check that the pot drains well.
Do geraniums like full sun?
Yes, most bloom best with 6 or more hours of sun. In very hot climates, a little afternoon shade helps them use less water.
We turn horticulture research and real growing experience into plain-English watering schedules you can actually follow.