Should Phalaenopsis (moth orchids) be kept indoors or outdoors in autumn, and can they be repotted and given fresh medium?

As soon as autumn arrives, that Phalaenopsis at home becomes the"focus of attention." Should this plant be kept inside or moved out onto the balcony? You want to give it a new home and some fresh "food," but you're afraid one slip of the hand will kill it - truly worrying.

Actually, Phalaenopsis is just like people - it's also picky about its"living environment." Its favorite temperature is15-25°C. In autumn, if the outdoor temperature can hold steady at this range, putting it on the balcony or in the yard is completely fine. Think about it - outdoors the ventilation is good, and a breeze of autumn wind is far more comfortable than being stuffy in an air-conditioned room. Plus, the autumn sun isn't so harsh, and scattered light falling on the leaves makes it look so spirited.

But if a cold snap hits and the morning and evening temperatures drop below10°C, then you must hurry and move it back indoors. This Phalaenopsis is afraid of freezing - once it gets chilled, the leaves turn yellow and wilt, and the flower buds it worked so hard to grow may come crashing down, and it'll be too late for regret. Also, although the midday sun isn't as fierce as in summer, prolonged direct exposure will still burn spots onto the leaves. If placed outdoors, you need to find a semi-shaded spot, such as putting a gauze curtain over the windowsill, or placing it under tree shade - being cautious never hurts.

Many people think autumn is cool and it's the perfect time to repot, but for Phalaenopsis, this depends on the situation. If your Phalaenopsis is holding flower buds, or has just opened a few flowers, then absolutely don't touch it! Repotting at this time is like being yanked up while eating - it definitely won't be happy, and one disturbance will make the buds drop. You've waited so hard for it to bloom, and it all goes to waste. You have to wait until the flowers have completely faded, around late10to early11- that's when its strength slowly recovers, and repotting is safe.

Changing the medium also has its rules - Phalaenopsis is not grown in ordinary mud. Those loose, soft things in its pot are either sphagnum moss or bark; these have good air permeability and are a perfect match for Phalaenopsis's aerial roots. When repotting, first gently peel off the old medium, check whether the roots have any rotten or hollow ones, and if so, cut them off promptly, then soak in carbendazim for ten minutes to disinfect. Don't pick too large a new pot - just one size bigger than the original is enough. If it's too big, the medium stays wet for a long time after watering and the roots rot easily. Before using the new medium, soak it for half an hour, squeeze out the water, then fill it in, so the roots can settle in comfortably.

Caring for Phalaenopsis in autumn comes down to two words:"watch the weather"+"wait for the right time." If the temperature is suitable, put it outside for some fresh air; when it gets cold, hurry and move it indoors. Repotting and changing the medium must wait until the flowers have faded - don't fiddle with it while it's blooming. Follow this method, and your Phalaenopsis will surely have glossy leaves in autumn and bloom even more vigorously next year. If you don't believe it, give it a try!