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Geranium care

Pelargonium

Thirsty’s starting schedule for Geranium: about every 5 days. Check the soil and adjust it to your home.

Watering

Let the soil dry out somewhat between waterings, then water until some drains from the pot. It isn't a thirsty plant, so water moderately in spring and summer and sparingly in winter. [1][2]

Light

Needs bright light to keep flowering, ideally a south- or west-facing window, with shade from scorching midday sun. [1][2]

Humidity

High humidity combined with overwatering can cause oedema, small corky spots on the leaves. [1]

Soil and potting

A well-drained potting mix high in organic matter, in a container with good drainage. [1][2]

Pets

Toxic to cats and dogs; it can cause vomiting, loss of appetite, depression and skin irritation. [3]

Sources

1. Clemson Cooperative Extension Home & Garden Information Center: Growing Geraniums Indoors
2. Royal Horticultural Society: How to grow pelargoniums
3. ASPCA: Toxic and Non-toxic Plants: Geranium

This page summarizes the sources above; follow them for the full picture. Light, pot, soil and season all change how fast a plant dries out, so check the soil before you water. Last reviewed October 9, 2026.