Trollius x cultorum Alabaster

Trollius x cultorum Alabaster, also known as a hybrid globeflower, has generous and refined flowering. Its flowers, resembling large semi-double buttercups, range from creamy white to ivory and pale yellow. They are held on stiff stems above elegant, deeply incised foliage. It is also a perfectly hardy perennial, highly interesting for its rapid growth and ability to tolerate very wet to marshy soils. Highly adaptable, this variety also performs well in good, not too dry garden soil, much to the delight of flower enthusiasts.

Trollius x cultorum belongs to the family of Ranunculaceae. This genus comprises about 25 species native to temperate regions of the northern hemisphere (Himalayas, eastern Tibet, and China), where they thrive near water bodies without becoming invasive. 'Alabaster' is part of a group of hybrids resulting from cross-breeding between Trollius europaeus and T. chinensis.

This Alabaster variety, less vigorous than other hybrids, forms a clump of basal foliage from which leafy flower stems emerge, either single or branched, reaching a height of 60 cm (24in) and a diameter of 40 cm (16in) depending on growing conditions. It also serves as an accent plant due to the richness and intensity of its flowering, perfectly highlighted by spring green foliage. In May-June, its semi-double flowers with densely packed stamens, measuring 3 to 4 cm (1 to 2in) in diameter, appear. They display diaphanous petals that capture light well. Its deciduous foliage consists of highly incised, medium green, palmately lobed leaves.

Trollius Alabaster appreciates fertile, humus-rich soils, even muddy or marshy ones, and a sunny or slightly shaded exposure. It will therefore fit nicely in a well-watered garden, within a flowerbed, or on a riverbank, near a water feature, planted en masse or alongside plants that share similar growing conditions, such as Willowherbs, Vernonia, Astilbes, or even Physostegia virginiana.

We recommend combining this perennial with a collection of plants with remarkable foliage and white flowers to create a chic planting scheme. We suggest positioning Gunnera tinctoria as a backdrop, followed by Rodgersias and Itea virginica Little Henry with Arums and Irises. Their bases can be adorned with Trollius pumilus arranged in large clusters.