The new Cypripedium shoots usually appear during April; except for Cypripedium formosanum, more precocious, which often emerge at the beginning of March, and Cypripedium reginae, which emerge later. Once started, the vegetation grows very quickly; in 3 to 5 weeks, the foliage has opened out. The flowering extends from the end of April to the beginning of June. At the end of the summer, the foliage yellows then fades before disappearing completely. Cypripedium then go into their winter dormancy. When the leaves have completely faded, the stems can be cut, preserving a height of 5cm. Take care not to damage any possible new shoots that are already present.
Over the years and following the successive growth and dormancy cycles, Cypripedium not only become stronger but also multiply, thanks to the annual appearance of new shoots.