Darlingtonia californica is a carnivorous plant that captures insects in specialised pitcher leaves. It belongs to the Sarraceniaceae family and is native to the USA. It requires permanently moist, acidic, sandy, nutrient-poor substrate and suits positions from full sun to partial shade. Flowers appear from June to August.

Californian pitcher plant Darlingtonia californica prefers full sun or partial shade with constantly moist, acidic, sandy soil.

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

Darlingtonia californica

Californian pitcher plant | Darlingtonia californica

Sarracenia 'Thomas' is a clump-forming pitcher plant with columnar upright growth and evergreen foliage. It flowers from May to July. Plant in full sun in an acidic loam kept consistently damp; a south- or west-facing, sheltered site suits it best. It is borderline hardy (H3) and is often grown in containers or under glass in the UK.

Pitcher Plant 'Thomas' (Sarracenia 'Thomas') is an evergreen, clump-forming bog plant that flowers May to July and suits sunny, sheltered south- or.

Sarracenia is a genus comprising 8 to 11 species of North American pitcher plants, commonly called trumpet pitchers. The genus belongs to the family Sarraceniaceae, which also contain the closely allied genera Darlingtonia and Heliamphora.

Sarracenia 'Thomas'

Pitcher plant 'Thomas' | Sarracenia 'Thomas'

Sarracenia flava is a perennial carnivorous plant in the family Sarraceniaceae, notable for its pitcher-form foliage and insect-trapping habit. Plants typically reach around 0.5 m and grow in permanently wet, acidic conditions. It favours full sun on a south-facing site and suits bog gardens, water features or large terraria. Flowering occurs from May to July.

Yellow pitcher plant (Sarracenia flava) is a perennial carnivorous bog plant for sunny, south-facing sites with wet, acidic soil, flowering May to July.

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

Sarracenia flava

Yellow pitcher plant | Sarracenia flava

Sarracenia purpurea is a carnivorous perennial that captures insects in tubular pitchers and grows to about 0.3 m. It prefers full sun and permanently wet, acidic soil. It flowers from May to July. Native to Canada and the USA, it is fully hardy (H7) in the UK.

Common pitcher plant Sarracenia purpurea is a carnivorous perennial for wet, acidic sites in full sun, flowering May to July.

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

Sarracenia purpurea

Common pitcher plant | Sarracenia purpurea

Sarracenia rubra is a carnivorous perennial in the Sarraceniaceae that develops upright pitcher leaves for trapping insects. Native to the south‑eastern USA, it is commonly called the sweet pitcher plant. It prefers full sun or partial shade and consistently moist, acidic soils composed of sand and peat. Suitable for bog gardens, containers or terraria, it flowers from May to July and the blooms are fragrant.

Sweet pitcher plant Sarracenia rubra is a carnivorous perennial for bog gardens and containers, flowering fragrantly from May to July.