How do you water and care for a Phalaenopsis orchid grown in bark in summer?
Growing Phalaenopsis orchids in bark is indeed airy and low-maintenance, but once summer arrives, with its high temperatures and muggy weather, a moment of neglect can lead to root rot and yellow leaves. Today let's talk through the complete summer care guide for bark-grown Phalaenopsis orchids - watering, sun protection, and rot prevention, nothing left out!
When watering a bark-grown Phalaenopsis orchid in summer, don't stick to the old rule of once a week. Bark itself is airy and drains quickly, but summer's high temperatures make evaporation fierce, so watering must be adjusted flexibly. The simplest method is "squeeze the bark+check the condition": pull back the top layer of bark and squeeze the middle layer; if it is completely dry and feels crisp, or if you notice the leaves at the base of the Phalaenopsis orchid are slightly soft, that is it calling out "thirsty" and it is time to water!
When watering, never just give it a light sprinkle - you must water thoroughly! Use a long-spout watering can and circle it around the edge of the pot until water gurgles out of the bottom; or simply soak the pot in a large basin of water, with the water level reaching halfway up the pot, and soak for 10 minutes or so, letting the bark drink its fill. After watering, remember to immediately pour off any standing water in the saucer! Summer is muggy, and water sitting overnight makes the roots prone to blackening and rot - by then it will be too late to cry!
Among the other life-saving points for summer care, the first and foremost is sun protection! Phalaenopsis orchids are naturally afraid of harsh sun, and under summer's strong rays the leaves can scorch in minutes. Quickly move it to a spot with bright, indirect light and good airflow, such as a north balcony or east windowsill, or put up a shade net to block 60% - 70% of the sunlight. If there is really nowhere suitable, just give it 1 - 2 hours of sun in the early morning or late afternoon - absolutely no sun at noon!
Ventilation is also a major part of summer care! In a hot, humid environment, Phalaenopsis orchids are most prone to pests and diseases. If you have a fan at home, run it toward the plant for a few hours a day to simulate a natural breeze; if not, open the windows more to let the air circulate. If the air humidity exceeds 70%, it is best to also run a dehumidifier and bring the humidity down to 50% - 60%; this not only prevents root rot but also reduces the chance of soft rot and red spider mites paying a visit!
Finally, since Phalaenopsis orchids grow more slowly in summer, hold off on fertilizer for now - otherwise strong fertilizer will burn the roots and send your precious plant straight to its end. The watering frequency should also be stretched out, to roughly 7 - 10 days per watering. If you notice the leaves turning yellow and soft, it is most likely too much water smothering the roots, so quickly move it to the most ventilated spot, pull the bark aside to let it air out, and help the moisture evaporate faster.
When growing Phalaenopsis orchids in bark in summer, water based on how dry or wet the bark is and the plant's condition, watering thoroughly without letting water stand; sun protection and ventilation are key, so avoid harsh sun and provide plenty of natural airflow; control your hands and water less and skip fertilizer! Master these tips and your Phalaenopsis orchid is sure to make it through summer safely.