To keep geraniums (pelargoniums) full of flowers, watering is less about giving them lots of water and more about watering correctly:
- Water deeply, then let the soil partly dry out. Water until it drains from the bottom of the pot, then wait until the top 2–3 cm (about 1 inch) of soil feels dry before watering again.
- Avoid keeping the roots constantly wet. Overwatering is one of the most common reasons geraniums stop flowering or develop yellow leaves.
- Water at the base of the plant, not over the leaves and flowers, to reduce the risk of fungal problems.
- Water more often in hot, sunny weather and less during cool or rainy periods.
- Use pots with drainage holes and a light, well-draining potting mix.
- For abundant blooms, combine proper watering with regular deadheading (removing faded flowers) and a flowering fertilizer during the growing season.
A good rule: geraniums prefer being slightly thirsty rather than sitting in soggy soil. A brief dry spell often encourages more blooms.
