How often should I water my orchids?
I keep killing my orchids because I think I'm watering them too much. What's the actual schedule I should follow? I've got them in bark media in a north-facing window.
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You've probably nailed the problem - orchids are way more forgiving when you let them dry out between waterings than when you keep them soggy. With bark media you're actually in a good spot because it drains fast, so you can be a bit more generous than someone using moss.
The general rule I follow (learned this the hard way after losing three phalaenopsis orchids in a row back in 2019) is to water when the bark is almost completely dry. Stick your finger about an inch into the media - if it feels dry, water thoroughly until it runs out the bottom, then let it drain completely. For most orchids in bark media during the growing season, that usually means once a week, maybe every 5-7 days depending on humidity and temperature in your space. North-facing windows are actually ideal because you're getting consistent light without the intense afternoon heat that can dry things out too fast. In summer 2026 I've been watering my Cattleyas about every 6 days since we've had that humid stretch, but winter would be different.
The key thing nobody tells you is that you're not aiming for "moist" - you want the plant to have a tiny bit of stress between waterings. That actually triggers better blooming. Just feel the weight of the pot too; a freshly watered orchid is noticeably heavier. After a week or so it gets lighter, and that's your signal. If you're really unsure, underwater first and adjust. It's much easier to save an underwatered orchid than one that's rotting from constant moisture.
Before you settle on a schedule, I'd verify what your bark media actually retains - some bark breaks down faster than others and holds water differently, so what works for someone else might not match your setup.
The real tell is checking if the medium feels dry an inch or two down before watering, which in a north-facing window usually means once a week or sometimes less, but honestly that depends on your humidity, air circulation, and how chunky your bark is.
How long does your bark take to dry out when you water - a few days or closer to a week? In a north-facing window with slower evaporation, most folks water roughly every 10-14 days, but the real tell is the medium itself: stick your finger an inch or two into the bark, and water only when it feels mostly dry. The pitfall others sometimes skip over is that bark can look deceivingly dry on top while staying moist deeper down, which is exactly where the roots are, so always check below the surface rather than just eyeballing it.
Linda asker
Thanks! A week or so to dry out. I'll definitely check deeper in the bark instead of just the surface.
The north-facing window actually works against you here - less light means slower evaporation, so that bark stays wet longer than it would in brighter conditions. What matters most is checking the bark itself: stick your finger an inch or two down, and only water when it feels dry. One thing people miss is that orchids in bark often need a good flush of water when you do water them (not just a light spritz), which helps prevent salt buildup, but then you have to let it drain completely - does your pot have drainage holes? If water's sitting at the bottom, that's your killer right there.
Yes, drainage holes are there and water drains completely. Thanks for the tip about the flush watering - I'll try that approach.
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