Where is the Buttercup Bush native to?

'Senna corymbosa' is an ornamental plant in the genus 'Senna'. It is also known as Argentine senna, Argentina senna, buttercup bush, flowering senna, Texas flowery senna or tree senna.

The Buttercup Bush, is a large broad South American shrub with pinnate leaves and racemes of bright yellow flowers. It is fast growing and forms a broad rounded shape that responds vigourously to pruning with a dramatic display of its distinctive five-petaled flowers that are a magnet to pollinators.

You can prune buttercup bush back at any time without harming it. Pinching the stems back from time to time will help give you a bushier, fuller plant, but this isn't required to grow buttercup bush.

It can be grown in temperate climates as it is somewhat frost-hardy. The soil should be loamy and peaty. Argentine Senna may be propagated by cuttings planted in sand in warm and protected conditions (e.g. a glasshouse). In the Northern Hemisphere, it flowers in July.