Planting Time and Depth: Gladiolus bulbs should be planted in early spring after the last frost. They prefer well-drained soil and should be planted about 4-6 inches deep and spaced 6-8 inches apart to ensure proper growth and flowering.
Sunlight and Location: These bulbs thrive in full sun, requiring at least 6-8 hours of direct sunlight daily. Choose a location in your garden that receives ample sunlight and is sheltered from strong winds, as they can grow quite tall and may need support.
Watering and Moisture: Gladiolus bulbs need regular watering, especially during dry spells. Keep the soil evenly moist but not waterlogged to prevent rotting. Mulching around the plants helps retain moisture and keeps the soil cool, which is beneficial during hot summers.
Fertilizing Needs: To encourage robust growth and vibrant blooms, fertilize gladiolus bulbs when planting with a balanced fertilizer. Additional applications of fertilizer can be beneficial during the growing season, especially after the first flowers appear. Avoid excessive nitrogen, as it can lead to more foliage than flowers.
Maintenance and Post-Bloom Care: After flowering, deadhead spent blooms to encourage the plant to put its energy into bulb development rather than seed production. Once the foliage turns yellow after flowering, you can lift the bulbs, clean off excess soil, and store them in a cool, dry place until the next planting season.