Overview

Iris 'Broad Shoulders' (TB) is a upright herbaceous perennial in the genus Iris, part of the Iridaceae family, with blue-green foliage. Iris 'Broad Shoulders' (TB) grows best in full sun, and tolerates sandy soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include border planting and architectural plant.

About

Iris 'Broad Shoulders' is a herbaceous perennial cultivar of the Iris genus, known for its upright habit and blue-green foliage. This plant thrives in full sun with a south-facing, sheltered aspect, preferring well-drained, sandy, neutral soil that remains dry. It is hardy in the UK (H7) and typically flowers in spring, producing the genus's characteristic blooms with three broad fall petals and three smaller upright standard petals. Suitable for border planting and as an architectural feature, it is best propagated by division or seed.

About the genus

Iris takes its name from the Greek goddess of the rainbow, and for once the naming feels entirely earned. I can't think of another genus that covers so much ground — inky purples, burnt apricots, clean whites, blues that seem lit from inside — or so many situations. There are bearded irises that want their rhizomes baked in full sun, Siberian types happy in ordinary border soil, and species that will sit contentedly at the edge of a pond. What they share is the flower: three petals standing up, three falling away, built with a kind of architectural confidence most plants never attempt. Even out of bloom the foliage earns its place — those upright fans of blue-green leaves hold a border together for months. I grow them for the fortnight in May and June when nothing else in the garden can compete, and I've made my peace with that. Some plants are for the long haul. An iris is an event.

Written by Henry

Growing conditions

Best soil and position for Iris

Sunlight
Full sun
Soil type
Sandy
Soil pH
Neutral
Soil moisture
Dry
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H7

Plant details

Iris 'Broad Shoulders' (TB) size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Upright
Foliage
Blue-green
Suggested uses
Border planting, Architectural plant

Care notes

Pruning and caring for Iris 'Broad Shoulders' (TB)

Propagation
Division, Seed
Pest resistance
Resistant
Disease resistance
Resistant

Frequently asked questions

Where is the best place to plant Iris 'Broad Shoulders' (TB)?

Iris 'Broad Shoulders' (TB) prefers full sun. It suits sheltered positions.

What soil does Iris 'Broad Shoulders' (TB) need?

Iris 'Broad Shoulders' (TB) grows best in sandy soil. It prefers neutral soil. Aim for soil that stays dry.

Is Iris 'Broad Shoulders' (TB) hardy in the UK?

Iris 'Broad Shoulders' (TB) has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Iris 'Broad Shoulders' (TB)?

Division, Seed.

More in the Iris genus

Browse all Iris