We're offering you a 24 or 48 Gladioli 'Gladdies' Collection for £7.99, saving you up to 47% off Thompson and Morgan's's price of £14.99 (correct as of 13.02.2026).

Gladioli 'Gladdies Trio' Plant

Bring a burst of summer colour to your garden with the Gladioli 'Gladdies Trio' Collection! These perennial bulbs are cherished for their upright spikes and dazzling array of blooms. Each stem delivers up to 20 full-size flowers, ensuring a dramatic display whether planted in borders or containers.

Why Choose Gladioli 'Gladdies Trio'?

• Eye-Catching Blooms: The Gladiolus genus is known for its tall, slender spikes covered in trumpet-shaped flowers. This compact variety offers all the impact without taking over your garden space.
• Seasonal Interest: Flowers typically appear from July through September, providing continuous colour when many other plants fade.
• Perfect Size: Manageable flower spikes make them easy to tuck into smaller spaces or create bold centrepieces in containers.

Growing Guide

• Planting Time: Plant bulbs outdoors from March to May after the last frost.
• Soil: Prefers well-drained, moderately fertile soil with a neutral to slightly acidic pH (6.0–7.0).
• Light: Requires full sun for best flowering performance.
• Spacing: Plant bulbs 10–15cm deep and about 10cm apart.

Caring for Your Gladioli

• Watering: Keep soil moist during active growth but avoid waterlogging.
• Feeding: Apply a balanced liquid fertiliser every two weeks during the growing season.
• Support: Taller stems may need light staking in windy areas.
• Lifting Bulbs: In colder regions (below USDA zone 8), lift bulbs after foliage dies back and store frost-free over winter.

Design Tips & Companion Planting

• Create striking borders by mixing with dahlias, lilies, or ornamental grasses that share similar sun and soil preferences.
• Add drama to patio pots or use as cut flowers for impressive indoor arrangements.

FAQs

• When is the best time to plant Gladioli bulbs?
  The best time is from March to May after the last frost has passed.
• How tall do Gladioli 'Gladdies Trio' typically grow?
  This compact variety usually reaches around 60–90cm (2–3ft) in height.
• Can I leave Gladioli bulbs in the ground over winter?
  If you live in milder regions (USDA zone 8+), you can leave them in the ground; otherwise, lift and store them frost-free until spring.