Paphiopedilum tonsum

Also known as: The Bald Paphiopedilum or Paphiopedilum tonsum h.v. cupreum Paphiopedilum tonsum h.f. tipo Paphiopedilum tonsum h.f. album Paphiopedilum tonsum h.v. rubrifolium Paphiopedilum tonsum h.v. superbum Paphiopedilum tonsum f. alboviride Paphiopedilum tonsum h.v. curtisifolium Cordula tonsa in the subfamily: Cypripedioideae

General Information

The Bald Paphiopedilum is a warm growing epiphytic orchid belonging to the sub family Cypripedioideae. The name refers to the flowers having no hairs.

Plant Description

Each new growth has numerous erect elliptic, oblong shaped leaves that grow to 5-20cm long

Substrate(s)

• Coarse

Care Notes

These orchids like to be watered regulary, especially during warm weather, and prefer a well draining mix or also do well mounted, provided they can be watered daily or even many times a day.

These are quite a forgiving orchid, there are no special requirements to get this orchid to flower, just good care and consistent conditions. Larger plants may be more fussy and can react poorly to change; a poorly timed repotting, a pest infection or an unusually hot day can set them back for a couple of years. However, even plants that have been treated poorly can thrive, and if they are set back they often recover much stronger then they would otherwise be.

Climate

Grows at low to high elevations. Rainfall ranges from 152mm to 518mm per day, heaviest in May and lightest in March. Humidity ranges from 81% to 85%, highest in May and lowest in January. Temperature ranges from 15C to 23C, highest in November (16C to 23C) and lowest in January (15C to 22C).

Watering

These orchids prefer a constant supply of moisture, with a slight drying out between waterings. Saucers can be placed under pots to retain moisture during hot weather, however the saucers should be removed or let to dry every 1-2 weeks to prevent rot. Keep an eye on the plant especially in hot weather and look for cues of under/overwatering and adjust accordingly.

Fertiliser

These orchids do not need to be regularly fertilised and roots may be sensitive to salt build-up, dying back and therefore impairing the plants growth or even killing it.

If fertilising, use half to quarter of the recommended amount of fertiliser. If they receive fertiliser as part of a collection, be sure to flush out the pots regularly with fresh water and monitor the roots by checking how much resistance is given by the plant when nudged in its pot or mount. If the plant becomes wobbly or loose, repot in fresh mix or rinse the media/mount thoroughly and do not fertilise for at least 3 months.

Be sure to flush out excess fertiliser by running water through the media regularly year round. Use a high Nitrogen fertiliser year round. Use a high Phosphorous fertiliser year round.

Potting

These plants are quite forgiving and will do well repotted ever 2-3 years. The mix should be coarse, well draining, and allow space for air to move and for roots to grow. 

Alternatively, these plants will also do well mounted to tree fern or cork slabs, or mounted to trees.

Best time for repotting or mounting the orchids is the end of winter when new growths start to appear. Avoid repotting during hot weather,

Repotting is best done annually.