Gladiolus bullatus (Caledon bluebell) — Upright

Overview

Gladiolus bullatus is a upright bulbs in the genus Gladiolus, part of the Iridaceae family, with green foliage. Gladiolus bullatus grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include cut flowers, borders and containers.

About

Gladiolus bullatus, commonly known as Caledon bluebell, is an upright perennial from the Iridaceae family. Like other Gladiolus, it grows from corms and features clusters of long, narrow green leaves with tall flower spikes bearing funnel-shaped blooms. This cultivar thrives in full sun with a south, west, or east-facing aspect and prefers fertile, well-drained loam soil with a neutral pH. Hardy to UK zone H5, it is suitable for sheltered locations and is often used in borders, containers, or as cut flowers during the summer season.

Growing conditions

Best soil and position for Gladiolus

Sunlight: Full sun
Soil type: Loam
Soil pH: Neutral
Soil moisture: Well-drained
Aspect: South-facing, West-facing, East-facing
Exposure: Sheltered
UK hardiness: H5

Plant details

Gladiolus bullatus size, habit and characteristics

Plant type: Bulbs
Habit: Upright
Foliage: Green
Suggested uses: Cut flowers, Borders, Containers

Care notes

Pruning and caring for Gladiolus bullatus

Propagation: Division, Cormlets
Pest resistance: Aphids, Slugs
Disease resistance: Botrytis, Fusarium bulb rot, Fungal leaf spot

Frequently asked questions

Where is the best place to plant Gladiolus bullatus?

Gladiolus bullatus prefers full sun. It suits sheltered positions.

What soil does Gladiolus bullatus need?

Gladiolus bullatus grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.

Is Gladiolus bullatus hardy in the UK?

Gladiolus bullatus has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Gladiolus bullatus?

Division, Cormlets.

More in the Gladiolus genus

Browse all Gladiolus →