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Paphiopedilum argus

Argus Paphiopedilum

Family Orchidaceae

About

A mottled-leaved slipper orchid found only on Luzon in the Philippines, named for the eye-like purple spots on its petals. It is a parent of various cultivated hybrids.

Care at a glance

Pet safety
Not recorded. We have no source on whether this plant is safe for cats, dogs or other pets — that is not the same as safe. Keep it out of reach until you have checked.
People
Not recorded.
Light
Shade-loving: roughly 1,000–2,000 foot-candles, such as an east or west window or a shaded south window. General guidance for the genus
Water
Keep the mix evenly moist but never soggy; do not leave the pot standing in water. General guidance for the genus
Humidity
Moderate, about 40–50%; a tray of damp gravel helps, with steady air movement. General guidance for the genus
Temperature
Nights about 13–22 °C (55–72 °F), days 21–29 °C (70–85 °F); mottled-leaf and multi-flowered types prefer the warmer end, plain green-leaved types the cooler end. General guidance for the genus
Soil
Fine to medium fir bark with perlite, sand or sphagnum; limestone-dwelling species appreciate added limestone chips or oyster shell. General guidance for the genus
Pot
Repot about every two years, or sooner if the mix breaks down. General guidance for the genus
Propagation
Divide established clumps into groups of three to five growths; single growths may take time to flower. General guidance for the genus

“General guidance for the genus” marks advice sourced for the genus as a whole rather than this species.

Field notes

Morphology

A medium-sized, semi-terrestrial plant with three to five leaves 9–24 cm long, green with darker mottling above and purple-spotted near the base below. A downy purple-green stalk 30–45 cm tall carries one variable flower 6–8 cm across; the petals bear bold purple spots, some ringed like eyes. Flowering peaks in March and April, and plants take 2–5 years to reach full size.

Distribution & habitat

Endemic to western Luzon, Philippines, at 1,150–1,600 m, growing in leaf litter, humus and moss along volcanic ridges under low forest, where mean temperatures are about 17–20 °C.

Cultivation notes

Grown by orchid enthusiasts and used to breed various hybrids.

History & etymology

Described by Reichenbach in 1873 as Cypripedium argus. Hooker (1875) called it a very close ally of P. barbatum, differing in its larger size, spotted petals and pointed upper sepal. Stein moved it to Paphiopedilum in 1892. The name recalls Argus, the many-eyed giant of Greek myth.

Read the full article on Wikipedia →

Habitat

Altitude
Not recorded
Altitude class
—
Native to
Philippines

Cultivation

Difficulty
Not recorded
Temperature
Nights about 13–22 °C (55–72 °F), days 21–29 °C (70–85 °F); mottled-leaf and multi-flowered types prefer the warmer end, plain green-leaved types the cooler end.
Humidity
Moderate, about 40–50%; a tray of damp gravel helps, with steady air movement.

Text adapted from Wikipedia, CC BY-SA 4.0.

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