Gladiolus (Gladiolus involutus)
Care, watering, light and tips for Gladiolus on Floravia.
Quick facts
- Family: Iridaceae
- Difficulty: Moderate care
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Gladiolus
Gladiolus involutus, known as 'mečík nadvinutý', is a gladiolus species native to South Africa. It is characterized by its pink to purple flowers, with a darker mark on the inner tepals, and lance-shaped leaves. It is ideal for rock gardens, path borders, or as a cut flower in floral arrangements.
Native range
South Africa
Care tips
It requires full sun for optimal flowering and well-drained, slightly acidic to neutral soil. Water regularly during the growing season, reducing frequency once the flowers fade. Protect corms from frost in cold climates or lift and store them in a dry, cool place. Avoid waterlogging, as it can lead to corm rot.
How to save a dying Gladiolus
- Warning signs
- Yellowing or browning leaves from the base, soft stems, poor or no flowering. This usually points to corm issues.
- First aid
- Carefully unearth the corm. Check for rot (soft/black areas). Cut damaged parts with a sterile tool and apply fungicide.
- What kills it
- Overwatering, especially in heavy soils. Waterlogging quickly rots the corm, which is very sensitive.
- Can it be saved?
- Yes, if the rot hasn't affected the entire corm. Act quickly at the first symptoms to save it.