Gladioli

Gladioli are long-stemmed beauties that thrive in full sun, offering stunning blooms 70-90 days after planting. Perfect for garden beds or as cut flowers, they’re a showstopper in any setting.

Why Grow Gladioli?

Gladioli are a timeless classic that adds elegance and vibrancy to any garden. Whether for striking garden displays or dramatic cut flowers, they’re a rewarding choice for gardeners of all levels. Plant them this season and enjoy their stunning beauty all summer.

Planting Tips

• Timing: Stagger planting from July to November to enjoy continuous flowering throughout summer.
• Position: Choose a sunny, well-drained location for optimal growth.
• Soil: Prepare the soil by cultivating to 20 cm and mixing in a bulb fertiliser like Tui Bulb Food. Avoid animal manures, as they can promote disease.

How to Plant

• Plant corms 6-8 cm deep and 12-15 cm apart.
• Ensure the scar from the previous year’s roots faces downward.
• For the most striking effect, plant in groups of 15-25 corms.

Care & Feeding

• Apply bulb fertiliser again 50-60 days after planting to encourage abundant blooms.
• Water regularly but avoid overwatering, as gladioli prefer well-draining soil.

Pest & Disease Management

• Watch for sap-sucking insects like thrips and aphids, as well as leaf rust.
• Use systemic sprays where possible to manage issues. Spray early in the morning or evening to prevent flower burn.

Cut Flowers

Gladioli make excellent cut flowers, but leave a few leaves on the plant to help it store energy for the next season.

Support & Staking

• Plant in a sheltered position to protect the tall stems from wind.
• Stake the stems if leaving them in the garden for added support.

End-of-Season Care

• Lift the corms in autumn, once the foliage turns yellow (4-6 weeks after flowering).
• Trim foliage immediately and dry the corms in the sun for a day or two.
• Store corms in a warm, dry, well-ventilated area, such as a garage. After 2-3 weeks, remove old roots and store for the next season.