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Gladiolus
Gladiolus hortulanus
Gladiolus is a striking bulbous plant known for its tall flower spikes and vibrant blooms. It thrives in full sun and well-drained soil, making it a popular choice for summer gardens and cut flower arrangements.
USDA Zones
4–9
Height
2 ft–5 ft at maturity
Bloom Season
June – September
Bloom Color
pink, white, red, yellow, orange, purple
Garden🐝 Attracts Pollinators
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Sun Requirements
Full Sun
6+ hours of direct sunlight daily
Soil Type
well-drained, loamy
Care Requirements
Water Needsmedium
Maintenancelow
EvergreenNo
Complete Care Guide
### Gladiolus Care Guide
Gladiolus plants require full sun and well-drained, loamy soil to flourish. Plant the corms in spring after the danger of frost has passed, spacing them about 6 inches apart and 4 inches deep. They prefer moderate watering; keep the soil moist but not waterlogged to prevent rot. Fertilize with a balanced, slow-release fertilizer at planting and again when flower spikes appear to encourage robust growth and vibrant blooms.
Deadhead spent flowers to prolong blooming and prevent seed formation. Gladiolus plants generally need low maintenance but benefit from staking to support their tall flower spikes, especially in windy areas. After blooming, allow the foliage to die back naturally to replenish the corms for the next season. In colder zones, dig up the corms in fall and store them in a cool, dry place over winter to protect them from freezing temperatures.
Regular monitoring for pests like thrips and diseases such as botrytis is recommended. With proper care, gladiolus will reward gardeners with spectacular floral displays throughout the summer months.