Masdevallia paivaeana

Also known as: Castello de Paiva Masdevallia or Masdevallia aspera in the subfamily: Epidendroideae

General Information

Castello de Paiva Masdevallia is a miniature sympodial cool to warm growing epiphytic or lithophytic orchid belonging to the sub family Epidendroideae. It is named after the Bolivian Plant Collector in the 19th century.

Plant Description

Sympodial. Grows to 2.5-14.5cm. Each new growth has a single leathery erect, elliptic leaf that grows to 1.5-10cm long. The plant tends to climb or sprawl with each new growth

Flowers

Numerous blossoms appear during Summer and Autumn

Blooming Season

• Autumn
• Summer

Substrate(s)

• Coarse
• Bark
• Treefern
• Spaghnum Moss
• Perlite

Care Notes

These orchids like to be kept on the dry side, but may need to be watered daily during warm weather, and prefer a well draining mix or also do well mounted, provided they can be watered regularly.

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 high elevations. Rainfall ranges from 8mm to 114mm per day, heaviest in July and lightest in November. Humidity ranges from 36% to 53%, highest in July and lowest in January. Temperature ranges from 9C to 28C, highest in May (14C to 28C) and lowest in January (9C to 25C).

Watering

These orchids are sensitive to excessive watering and should only be watered when they look thirsty. Water infrequently and ensure that the roots are dry before watering. Keep an eye on them especially during hot weather as overwatering can lead to rot, whereas underwatering may result in wilting or shriveling, which while unattractive, will not kill the plant.

Keep moisture levels up during hot weather as the plant is prone to dehydration

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.

Use balanced fertiliser year round. Apply fertiliser regularly at half strength year round. This plant is sensitive so apply fertiliser sparingly at one quarter recommended strength or less. Use a high Nitrogen fertiliser year round. Use a high Phosphorous fertiliser during Summer.

Potting

Due to the growth nature of these plants they are best mounted onto cork, tree fern slabs, or even trees if the climate suits. Water regularly especially in hot weather.

Use water retentive media such as moss to prevent roots from drying out quickly This plant does well mounted to Cork slabs. Repotting is best done annually.