Phlox 'Opening Act White' (Opening Act Series) — Clump forming, Matforming

Overview

Phlox 'Opening Act White' (Opening Act Series) is a clump forming, matforming herbaceous perennial in the genus Phlox, part of the Polemoniaceae family, with deciduous, evergreen foliage. Phlox 'Opening Act White' (Opening Act Series) grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include cottage and informal garden, low maintenance, banks and slopes, flower borders and beds, garden edging and underplanting of roses and shrubs.

About

Phlox 'Opening Act White' is a clump-forming, mat-forming cultivar of the Phlox genus, which includes both evergreen and herbaceous plants with simple leaves and salver-shaped flowers clustered at stem ends. This cultivar is suitable for full sun to partial shade and thrives in well-drained, fertile soils of various types and pH levels. Hardy to UK zone H7, it is ideal for cottage and informal gardens, flower borders, banks, slopes, and underplanting. It flowers in summer and can be propagated by division, basal cuttings, or root cuttings.

Growing conditions

Best soil and position for Phlox

Sunlight: Full sun, Partial shade
Soil type: Chalk, Clay, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Moist but well-drained
Aspect: South-facing, West-facing, East-facing
Exposure: Exposed, Sheltered
UK hardiness: H7

Plant details

Phlox 'Opening Act White' (Opening Act Series) size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump forming, Matforming
Foliage: Deciduous, Evergreen
Suggested uses: Cottage and informal garden, Low Maintenance, Banks and slopes, Flower borders and beds, Garden edging, Underplanting of roses and shrubs

Care notes

Pruning and caring for Phlox 'Opening Act White' (Opening Act Series)

Propagation: Division in autumn or spring, Basal cuttings in spring, Root cuttings in early autumn or winter
Pest resistance: Stem and bulb eelworm, Phlox eelworm
Disease resistance: Powdery mildews, Grey moulds, Leafy gall, Leaf spot

Frequently asked questions

Where is the best place to plant Phlox 'Opening Act White' (Opening Act Series)?

Phlox 'Opening Act White' (Opening Act Series) prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Phlox 'Opening Act White' (Opening Act Series) need?

Phlox 'Opening Act White' (Opening Act Series) is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Phlox 'Opening Act White' (Opening Act Series) hardy in the UK?

Phlox 'Opening Act White' (Opening Act Series) has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Phlox 'Opening Act White' (Opening Act Series)?

Division in autumn or spring, Basal cuttings in spring, Root cuttings in early autumn or winter.

More in the Phlox genus

Browse all Phlox →