Pleurothallis longissima is general orchid culture an evergreen plant. I would suggest you that grow the Pleurothallis indoor or in a warmed greenhouse with the minimum temperatures. Water them regularly and don't leave stagnant water. It is advisable to water these plants by immersion, soak the containers in water up to the edge and take out from the water and let the excess water drain well. They need an averagely drained cultivation substratum.
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