Bring timeless elegance and striking purity to your garden with Gladiolus 'Grand Prix', a refined variety renowned for its tall spikes of immaculate white blooms. Each floret opens in succession along the stem, creating a stunning vertical display of fresh, crisp flowers that radiate sophistication. Perfect for wedding arrangements, summer bouquets, and classic borders, this variety is a must-have for gardeners who love a clean, graceful aesthetic.
Corm Count: 10
Plant Height: 120—140 cm
Bloom Size: ±10—12 cm
Flower Type: Large-flowered (Grandiflorus-type)
Growth Habit: Upright, vertical spikes
Light Requirement: Full sun
Blooming Season: Mid to late summer
Spacing: 10—15 cm apart
Staking: Recommended for tall stems and heavy flower spikes
Growing Tips
Planting Time:
Spring to early summer (September to November) in most regions. In frost-free zones, stagger planting every 2 weeks for a continuous supply of blooms.
Position:
Full sun in well-drained, open locations. Ideal for borders, cutting gardens, and event flower production.
Soil:
Fertile, loamy soil enriched with compost or bonemeal. Excellent drainage is essential to prevent rot.
Watering:
Maintain consistent moisture during growth and flowering, but avoid soggy conditions.
Feeding:
Apply a high-potassium fertiliser (e.g. 3:1:5) as flower spikes form. Light mulch helps conserve soil moisture.
Maintenance:
Cut spent spikes promptly to strengthen corms. Allow foliage to die back naturally to replenish energy for the next season.
Overwintering:
In cold or very wet regions, lift corms once foliage has withered. Store in a cool, airy, frost-free place until the next planting.
Why You'll Love It
Pristine white blooms — perfect for weddings and elegant bouquets
Tall, majestic spikes with long vase life
A showstopper in mass plantings and borders
Easy to grow and highly reliable
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