Iris 'Temporal Anomaly' (TB) — Upright

Overview

Iris 'Temporal Anomaly' (TB) is a upright herbaceous perennial in the genus Iris, part of the Iridaceae family, with blue-green foliage. Iris 'Temporal Anomaly' (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 'Temporal Anomaly' is an upright herbaceous perennial in the iris family with distinctive blue-green leaves and an architectural presence. It flowers in the UK from May to July and holds strong vertical form through the season. Best sited in full sun on a south-facing, sheltered spot with sandy, neutral, dry soil, it is rated H7 (fully hardy) for UK conditions.

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

In the garden

Iris 'Temporal Anomaly' belongs to the Iridaceae and is offered as an upright, herbaceous perennial valued for its blue-green foliage and structural presence. It flowers in the UK between May and July, providing a clear summer display while its leaves maintain vertical emphasis in the border. Plant where it receives full sun on a south-facing, sheltered site in sandy soil of neutral pH; the species tolerates dry ground and is rated H7, meaning it is fully hardy across UK gardens. Those three site factors — sun, shelter and free-draining sandy soil — are the primary requirements for successful cultivation and reliable flowering between May and July. Use Iris 'Temporal Anomaly' as a border plant or as an architectural element where upright lines are needed: its upright habit and blue-green leaves create structure alongside lower perennials or in a designed mixed border. Its combination of vertical foliage and seasonal bloom makes it a practical choice for gardeners seeking clear form through late spring and early summer.

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 'Temporal Anomaly' (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 'Temporal Anomaly' (TB)

Propagation: Division, Seed
Pest resistance: Resistant
Disease resistance: Resistant

Frequently asked questions

Where is the best place to plant Iris 'Temporal Anomaly' (TB)?

Iris 'Temporal Anomaly' (TB) prefers full sun. It suits sheltered positions.

What soil does Iris 'Temporal Anomaly' (TB) need?

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

Is Iris 'Temporal Anomaly' (TB) hardy in the UK?

Iris 'Temporal Anomaly' (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 'Temporal Anomaly' (TB)?

Division, Seed.

More in the Iris genus

Browse all Iris →