Gladiolus (Gladiolus grandiflorus)
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
The Gladiolus grandiflorus, also known as Grand Swordlily, is a perennial bulbous plant cherished for its impressive spikes of vibrant and showy flowers. Its large, funnel-shaped blossoms, appearing in summer, are arranged on one side of the stem and come in a wide array of colors. It's a spectacular choice for garden borders, mass plantings, and especially as a cut flower in floral arrangements.
Native range
South Africa
Care tips
It requires full sun (at least 6 hours daily) for abundant flowering and well-drained, organically rich soils. Water regularly during the growing and flowering period, keeping the substrate moist but not waterlogged. Plant the bulbs (corms) in spring after the last frost. A common mistake is planting them too shallowly or in heavy, poorly drained soils, which can lead to corm rot.
How to save a dying Gladiolus
- Warning signs
- Yellowish or brown leaves from tip, soft or drooping stems, no blooms or quick wilting flowers.
- First aid
- Check bulb: if soft/rotten, remove. If healthy, replant in well-drained soil and water moderately.
- What kills it
- Overwatering rotting the bulb; heavy, undrained soil causing waterlogging.
- Can it be saved?
- Yes, if the bulb isn't completely rotten. Act fast to ensure good drainage and watering.