Iris 'Silicon Prairie' (TB) — Clump forming

Overview

Iris 'Silicon Prairie' (TB) is a clump forming herbaceous perennial in the genus Iris, part of the Iridaceae family, with deciduous foliage. Iris 'Silicon Prairie' (TB) grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H6. Suggested uses include city and courtyard gardens, cottage and informal garden, patio and container plants, cut flowers and flower borders and beds.

About

Iris 'Silicon Prairie' is a clump-forming herbaceous perennial in the iris family that produces seasonal blooms from May to July. It carries deciduous foliage and develops compact clumps rather than spreading aggressively. Best grown in a sunny, well-drained position on neutral loam, it suits sheltered sites in the UK and tolerates winter cold to H6 (very hardy).

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 'Silicon Prairie' belongs to the Iridaceae and presents as a clump-forming, herbaceous perennial that dies back after the season. Its flowering window runs from May to July, making it a mid-to-late spring and early-summer contributor to the garden. The plant’s deciduous habit and compact clump formation influence where it is best placed and how it is managed. Choose a position in full sun on a neutral loam that drains freely; south-, east- or west-facing aspects give the best light without exposing the plant to prevailing winds. Sheltered exposure reduces wind damage to flower stems and helps keep the crowns in good condition. With a UK rating of H6 (very hardy) it tolerates normal winter conditions across most of the country when well-sited. Use Iris 'Silicon Prairie' where its seasonal blooms can be appreciated: flower borders and beds, city or courtyard plots where space is moderate, containers on patios, and as a source of cut flowers. Its clump-forming habit also suits cottage and informal gardens where regular groups of upright stems provide structure during the May–July bloom period, and positioning near a path or cutting bed makes harvesting stems straightforward.

Growing conditions

Best soil and position for Iris

Sunlight: Full sun
Soil type: Loam
Soil pH: Neutral
Soil moisture: Well-drained
Aspect: South-facing, East-facing, West-facing
Exposure: Sheltered
UK hardiness: H6

Plant details

Iris 'Silicon Prairie' (TB) size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump forming
Foliage: Deciduous
Suggested uses: City and courtyard gardens, Cottage and informal garden, Patio and container plants, Cut flowers, Flower borders and beds