Marshmallow (Althaea officinalis)
Care, watering, light and tips for Marshmallow on Floravia.
Quick facts
- Family: Malvaceae
- Difficulty: Easy to care for
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
About Marshmallow
Althaea officinalis, commonly known as marshmallow or 'legestokkrose' in Norwegian, is a herbaceous perennial plant belonging to the Malvaceae family. It is characterized by its upright stems and velvety leaves, with pale white or pink flowers that bloom in summer. It is ideal for rustic-style gardens, medicinal herb garden borders, or as part of a flowering hedge, adding a soft texture and natural look.
Native range
Europe, Western Asia, and North Africa
Care tips
It prefers full sun to partial shade exposure and moist, well-drained soils rich in organic matter. Watering should be regular, keeping the substrate consistently moist, especially during dry periods. A common mistake is allowing the soil to dry out completely, which can stress the plant and reduce flowering. Mulching the base is beneficial to retain moisture and suppress weeds.
How to save a dying Marshmallow
- Warning signs
- Yellowing or spotted leaves, sudden wilting, stunted growth.
- First aid
- Check drainage, adjust watering (they prefer moisture, not waterlogging), protect from intense direct sun and wind.
- What kills it
- Excessive moisture and poor drainage leading to root rot. Also intense midday sun without protection.
- Can it be saved?
- Yes, if you act quickly. Good drainage and balanced watering are key for its recovery.