Cc: ( Cypripedium calceolus and related species in cultivation )
Plants grow in cool climate in open woodland conditions: semishade and always slightly moist condition. Compost should never dry out. Good drainage is important. Compost: 3 parts pumice gravel with some perlite and Seramis, 1 part limestone, some clay gravels, small amounts ( 5% ) of organic additives such as cocos fibres. 

Do: ( Dactylorhiza ) Best growing in open sunny places. Compost always moist: 1 part pumice gravel, 0.5 part gritty clay 0,5 part low nutrificated ( for seedlings ) organic compost.

E: ( Epipactis palustris, gigantea, veratifolia and hybrids )
Conditions like Do but less more sun and compost with additional 1 part coarse sand.

Ee: ( Eulophia )
Climate for most species as Ea ( see Disa ) but be carefully in watering, they don’t need much water and like it dry in rest period. Compost: very well drainaged mixes with pumice gravels, perlite and some bark for epiphytes. They like much sun.

G: ( Goodyera)
As W but always slightly moist.

H: ( Herschelianthe )
Plants grow in mediterrean climate: More or less dry summers and most water in spring and winter. They need as much sun as possible ( artificial illumination ) during vegetative period and should be dry during rest period. Cultivation is like meditterean european orchids. Compost: coarse sand with pulvered oyster shells ( 5%) and  some cocos fibres.Exellent drainage is important. 

Th: ( Thelymitra, Diuris )
Generally as Ca but compost with few gritty clay and you don’t need acid conditions. A well drainaged sandy mix is acceptable. They need very much sun and Thelymitra flowers are only open over 23°C in sun.

Pe : ( Aminostigma, Poenorchis, Hemipilia )
Asian generas related to Orchis, growing in meadows or between rocks. Plants maybe hardy but winter in natural habitat is much drier than in Europe. Best way is to hold tubers dry and cool in special room during wintertime. Compost and cultivation as O but may be without limestone.

W: ( Cynorkis, Disperis )
 Plants are growing in nature in coniferous forests in eastern Africa. Under shady conditions they need dry conditions during rest period. Compost. Pumice gravels with pine needles and some cocosnut fibers.