Bulbinella gibbsii is a perennial from New Zealand adapted to well-drained sandy or rocky soils. It suits positions in full sun or partial shade and tolerates sheltered to exposed sites. Soil should retain moderate moisture rather than become waterlogged. Flowering takes place from May to July.

Gibbs's Māori onion (Bulbinella gibbsii) is a New Zealand perennial for rock and alpine gardens that flowers from May to July.

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

Bulbinella is a genus of plants in the family Asphodelaceae, subfamily Asphodeloideae, first described as a genus in 1843. Many species are endemic to Cape Province in western South Africa, confined to the winter rainfall area.

Bulbinella gibbsii

Gibbs's Māori onion | Bulbinella gibbsii

Bulbinella hookeri is a perennial in the Asphodelaceae that produces upright spikes of bright yellow flowers. It grows to about 0.7 m and flowers from May to July. Native to New Zealand, it prefers full sun and soils that are sandy or loamy and well-drained but can remain moist. Give it an open, sunny spot so the flower stems can be seen.

Golden wand (Bulbinella hookeri) is a New Zealand perennial with bright yellow flowers May to July in full sun on well-drained sandy or loamy soil.

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

Bulbinella hookeri

Golden wand | Bulbinella hookeri

Bulbinella modesta is a perennial in the Asphodelaceae that prefers consistently moist conditions. Native to New Zealand, it performs best in full sun or partial shade. Plant in loam or sandy soils that retain moisture. It flowers in the UK from May to July.

Bulbinella modesta is a New Zealand perennial that prefers moist loam or sandy soils in full sun or partial shade.