Trollius × cultorum 'Alabaster' (globeflower 'Alabaster') — perennial

Overview

Trollius × cultorum 'Alabaster' is a perennial in the genus Trollius, part of the Ranunculaceae family. Trollius × cultorum 'Alabaster' grows best in full sun and partial shade, and tolerates moist and well-drained soil soils and neutral and slightly acidic pH. Its UK hardiness is rated H5. Suggested uses include borders, water gardens and cottage gardens.

About

Trollius × cultorum 'Alabaster' is a perennial globeflower in the Ranunculaceae grown for its seasonal display of globe-like blooms from May to July. It prefers moist, well-drained soil with a neutral to slightly acidic pH and takes full sun or partial shade. The cultivar tolerates both sheltered and exposed sites and suits all garden aspects. It is rated H5, meaning it is hardy in UK gardens.

About the genus

Trollius is a genus of about 30 species of flowering plants closely related to Ranunculus, in the family Ranunculaceae. The common name of some species is globeflower or globe flower. The generic name is derived from the Swiss-German word "Trollblume", meaning a rounded flower.

Wikipedia contributors, "Trollius", CC BY-SA 4.0 — Trollius

In the garden

Trollius × cultorum 'Alabaster' is a cultivated globeflower selection within the buttercup family (Ranunculaceae), valued in gardens for its concentrated flowering period from May to July. As a garden cultivar it is treated as a perennial and is used where a reliable late-spring to early-summer display is required. Plant it where soil remains moist and free-draining; neutral to slightly acidic conditions are preferred. Position the plant in full sun or partial shade according to site conditions — it will tolerate north, east, south or west aspects and performs in both sheltered and exposed locations. The H5 hardiness rating indicates the plant is hardy across much of the UK, so it can remain in situ through winter in typical garden soils. Its habit and moisture preference make Trollius × cultorum 'Alabaster' suitable for mixed borders, alongside water garden margins, or in cottage-garden schemes where a spring–early-summer sequence is planned. Plan beds so the May to July flowering period sits where it can be seen from paths or seating areas.

Growing conditions

Best soil and position for Trollius

Sunlight: full sun, partial shade
Soil type: moist, well-drained soil
Soil pH: neutral, slightly acidic
Soil moisture: moist
Aspect: north, east, west, south
Exposure: sheltered, exposed
UK hardiness: H5

Plant details

Trollius × cultorum 'Alabaster' size, habit and characteristics

Plant type: perennial
Suggested uses: borders, water gardens, cottage gardens

Care notes

Pruning and caring for Trollius × cultorum 'Alabaster'

Cultivation: Prefers moist, humus-rich soil; avoid drought; mulch in winter.
Pruning: Cut back after flowering to encourage fresh growth.
Propagation: Division in spring or autumn; seed propagation possible but less common.

Frequently asked questions

How do I grow Trollius × cultorum 'Alabaster'?

Prefers moist, humus-rich soil; avoid drought; mulch in winter.

Where is the best place to plant Trollius × cultorum 'Alabaster'?

Trollius × cultorum 'Alabaster' prefers full sun and partial shade. It suits sheltered and exposed positions.

What soil does Trollius × cultorum 'Alabaster' need?

Trollius × cultorum 'Alabaster' grows best in moist and well-drained soil soil. It prefers neutral and slightly acidic soil. Aim for soil that stays moist.