Potentilla 'Gibson's Scarlet' is a cultivar within the Potentilla genus and is valued for an extended summer flowering run. It blooms from June to September. The plant belongs to a group of herbaceous Potentilla that are grown for their summer flowers and characteristic foliage. Expect a cultivar that follows the seasonal pattern typical of Potentilla flowering.

Potentilla 'Gibson's Scarlet' flowers from June to September and provides dependable summer colour in UK plantings.

Potentilla is a genus containing over 500 species of annual, biennial and perennial herbaceous flowering plants in the rose family, Rosaceae.

Potentilla 'Gibson's Scarlet'

Cinquefoil | Potentilla 'Gibson's Scarlet'

Ulmaria is a perennial herbaceous plant prized for its sweet, almond-like fragrance. It prefers moist, fertile, well-drained soils and will grow in full sun or partial shade. Native to Europe and Western Asia, it suits damp meadows and wildflower areas. The species is commonly known as meadowsweet or mead wort.

Meadowsweet (Ulmaria) is a fragrant perennial herb for moist, fertile soils in full sun to partial shade and is fully hardy in UK gardens.

https://en.wikipedia.org/wiki/Filipendula_ulmaria

Filipendula is a genus of 12 species of perennial herbaceous flowering plants in the family Rosaceae, native to the temperate regions of the Northern Hemisphere. Well-known species include meadowsweet and dropwort, both native to Europe, and queen-of-the-forest and queen-of-the-prairie, native to North America.

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