Physostegia 'Alba' is a perennial selection of Physostegia valued for its white summer blooms from July to September. It favours full sun or partial shade and a moist, loamy, well-drained soil that is neutral to slightly acidic. Classified as H5, it is considered hardy in most UK gardens. It is commonly grown for borders, containers and as a source of cut flowers.

White Obedient Plant Physostegia 'Alba' produces white flowers from July to September and prefers moist, neutral to slightly acidic loamy soil.

Physostegia, the lionshearts or false dragonheads, is a genus of flowering plants in the family Lamiaceae, native to North America. They are erect rhizomatous herbaceous perennials inhabiting damp, sunny places.

Physostegia 'Alba'

White Obedient Plant (Physostegia 'Alba') | Perennial

Physostegia 'Summer Snow' is an erect, rhizomatous herbaceous perennial in the genus Physostegia that produces upright racemes of tubular summer flowers. It shares the genus's affinity for damp, sunny sites and can reach up to 2 m tall. Flowering takes place from July to September. Plants spread by their rhizomes and readily form clumps in suitable conditions.

Physostegia 'Summer Snow' is a rhizomatous Physostegia that flowers from July to September and prefers damp, sunny positions.

Physostegia 'Summer Snow'

Physostegia 'Summer Snow' | Summer-flowering Physostegia

Physostegia 'Vivid' is a cultivar of the Physostegia genus, an erect, rhizomatous herbaceous perennial in the mint family Lamiaceae that bears tubular purple to pink flowers in racemes. It favours damp, sunny places and spreads by underground rhizomes to form clumps. Flowering takes place from July to September. The calyx becomes filled with fruit as seeds develop.

Physostegia 'Vivid' is a rhizomatous perennial with tubular purple to pink flowers that bloom July to September in damp, sunny sites.

Physostegia 'Vivid'

Physostegia 'Vivid' | Purple-pink spires

Physostegia virginiana is a perennial known for its stems of tubular flowers that often stay where they are pushed, which gave rise to the common name obedient plant. Native to North America, it produces spikes of pink blooms from July to September. It tolerates full sun or partial shade and a wide range of soils when kept reasonably moist. Garden uses include borders, cut flowers and meadow-style plantings.

Obedient Plant (Physostegia virginiana) produces pink flower spikes from July to September and suits full sun or partial shade.

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

Physostegia virginiana

Obedient Plant (Physostegia virginiana) | Summer Spikes

Physostegia virginiana speciosa 'Rose Bouquet' is a perennial in the genus Physostegia that flowers from July to September. It originates from North America and is commonly grown in gardens for borders and for cutting. Plant prefers full sun or partial shade and tolerates loamy, sandy or clay soils across acidic to alkaline pH. Rated H5, it is classed as hardy in most of the UK.

Physostegia virginiana speciosa 'Rose Bouquet' is an obedient plant perennial for borders and cut flowers that blooms July to September.