Blitz Gladioli Bulb – Gladiolus Grandiflorus – Green-Yellow Ruffled Blooms

Bring fresh, unusual colour to your summer garden with Blitz Gladioli, an elegant Gladiolus grandiflorus variety producing tall spikes of ruffled green-yellow blooms. With its soft lime, chartreuse and yellow-green tones, Blitz offers a striking alternative to traditional bright gladioli colours and adds a clean, modern look to garden beds, borders and floral arrangements.

Gladioli are one of the most popular summer flowering bulbs for Australian gardens, loved for their tall upright stems, dramatic flower spikes and excellent use as cut flowers. Blitz Gladiolus makes a beautiful tall accent in the garden, providing height, structure and long-lasting colour when flowering outdoors or displayed indoors in a vase.

Growing to approximately 100–150cm tall, these gladioli bulbs are perfect for garden borders, cottage gardens, cutting gardens, mixed bulb displays and large pots. The green-yellow flowers pair beautifully with white, purple, pink, orange and deep red gladioli, making Blitz a versatile choice for both garden planting and flower arranging.

Flowering during spring in warmer regions and through summer in cooler temperate regions, gladioli can also be planted in succession every 4–6 weeks during the planting season to help create a staggered display of colour. Plant from June to September in full sun to semi shade. Supplied as a dry bulb, Blitz Gladioli is a rewarding choice for gardeners wanting elegant, tall flower spikes and reliable vase appeal.

Pre-Order Note

NOTE: This is a pre-order.

Image shown is an example picture only. Flower colour, size and form may vary slightly depending on growing conditions and seasonal availability.

Stock is expected to be ready by the end of July, subject to availability.

If there are any supply issues, we will contact you regarding substitution options.

Any items you do not wish to have substituted will be refunded.

Features

• Elegant green-yellow Bronze gladioli flowers
• Ruffled blooms with soft lime and yellow-green tones
• Tall upright gladiolus flower spikes
• Excellent for cut flowers
• Ideal for fresh garden colour and floral arrangements
• Great for garden beds, borders, cutting gardens and large pots
• Suitable for staggered planting every 4–6 weeks
• Adds height and structure to mixed plantings
• Water wise once established
• Supplied as a dry bulb

Planting & Care

Plant gladioli bulbs from June to September in a sunny, well-drained position. Gladioli perform best in full sun, though they can also grow in semi shade, particularly in warmer regions.

Choose a spot with fertile, free-draining soil. If planting in pots, use a large pot or tub filled with a premium-quality potting mix. Avoid heavy, waterlogged soil, as gladioli bulbs can rot if they remain too wet.

Plant bulbs approximately 10–15cm deep, with the pointed end facing upwards. Space bulbs around 10–15cm apart for a fuller display. For a longer flowering season, plant additional bulbs every 4–6 weeks through the planting period.

Water in well after planting, then keep the soil lightly moist while the plants are actively growing. Gladioli appreciate regular watering during dry periods, especially as flower spikes begin to form.

For best results, feed with a complete fertiliser during active growth to support strong stems and quality blooms. Avoid excessive nitrogen, as this may encourage leafy growth at the expense of flowers.

Because gladioli grow tall, they may need support in exposed areas. Plant where they have some protection from strong winds, or stake flower spikes as they develop to help keep stems upright.

For cut flowers, pick stems when the lower flowers are just beginning to open. Place stems straight into clean water and remove any foliage that would sit below the waterline. The remaining buds can continue opening indoors, making gladioli a long-lasting and rewarding cut flower.

After flowering, allow the foliage to continue growing until it naturally yellows. This helps the bulb store energy for future growth. In frost-prone areas, bulbs may be lifted and stored once foliage has died back.

Details

Scientific Name: Gladiolus grandiflorus / Gladioli x hortulanus
Product Type: Gladioli / Gladiolus Bulb
Supplied As: Dry bulb
Colour: Green, Yellow-Green, Lime
Height: 100–150cm
Flowers: January, February
Planting Time: June, July, August, September
Aspect: Full sun to semi shade
Growing Zones: Zones 1, 2, 3, 4
End Use: Garden, cut flower, naturalising
Water Wise: Yes
Frost Hardy: No

FAQ

Is Blitz a gladioli or gladiolus bulb?

Both terms are commonly used. Gladiolus is the botanical name, while gladioli is commonly used when referring to the flowers and bulbs. Blitz is a green-yellow gladioli variety commonly grown for tall garden colour and cut flowers.

What colour are Blitz Gladioli flowers?

Blitz produces ruffled green-yellow blooms, with soft lime and chartreuse tones.

When should I plant Blitz Gladioli bulbs?

Plant from June to September, depending on your climate and growing zone.

When does Blitz Gladiolus flower?

Blitz Gladioli generally flowers in January and February. In warmer regions, gladioli may flower earlier, while cooler temperate regions often see flowering through summer.

Can I stagger gladioli planting?

Yes. Gladioli can be planted every 4–6 weeks during the planting season to help extend the flowering display.

How tall does Blitz Gladioli grow?

This variety grows to approximately 100–150cm tall.

Is Blitz Gladioli good for cut flowers?

Yes. Gladioli are excellent cut flowers, and Blitz produces tall, elegant stems suited to vases and floral arrangements.

Can Blitz Gladioli grow in pots?

Yes. Plant in a large pot or tub using a premium potting mix. Make sure the pot drains freely and receives plenty of light.

Do gladioli bulbs need full sun?

Gladioli perform best in full sun, but they can also grow in semi shade, especially in warmer climates.

Should gladioli be staked?

Staking is recommended in windy or exposed areas, as the tall flower spikes can become top-heavy when in bloom.

How often should I water gladioli?

Water after planting and keep the soil lightly moist during active growth. Increase watering during dry periods, especially as flower spikes develop.

Should I fertilise gladioli?

Yes. Regular feeding with a complete fertiliser during active growth will help support strong stems and quality flowers.

Are gladioli frost hardy?

No. Blitz Gladioli is not frost hardy, so it is best grown during the warmer season or protected from frost in colder regions.

What are they supplied as?

Blitz Gladioli is supplied as a dry bulb, ready for planting during the recommended planting season.

Is this a pre-order?

Yes. This item is a pre-order, with stock expected to be ready by the end of July, subject to availability.

What happens if there is a supply issue?

If there are any supply issues, we will contact you regarding substitution options. Any items you do not wish to have substituted will be refunded.