🌸 OrchidLog

Phalaenopsis care guide

The Phalaenopsis, or moth orchid, is the orchid almost everyone starts with — and for good reason. It is forgiving, blooms for months, and thrives in the same conditions we find comfortable in our homes. Get four things right — water, light, feeding and a seasonal nudge to rebloom — and a moth orchid will reward you for years.

Watering

Overwatering kills more Phalaenopsis than anything else. In bark, water roughly every 7–10 days, but always let the medium approach dry first. The best method is to take the plant to the sink, run tepid water through the pot for a minute or two, let it drain completely, and never let it sit in standing water. Watch the roots through a clear pot: silvery and wrinkled means thirsty, plump and green means well-hydrated. Crucially, avoid getting water trapped in the crown (the centre where new leaves emerge), as that invites crown rot.

Light

Phalaenopsis want bright, indirect light — an east-facing window is close to ideal. The leaves are your gauge: bright, slightly olive-green leaves mean the light is right, dark forest-green leaves mean too little, and yellowish or reddish leaves mean too much direct sun. Never place a Phal in harsh midday sunlight, which scorches the foliage.

Feeding

Feed lightly and regularly. A balanced orchid fertilizer at quarter strength, applied "weakly, weekly" during active growth, suits Phalaenopsis well. Always fertilize onto already-damp roots, never dry ones, and flush the pot with plain water every few weeks to wash out built-up salts. Ease off feeding in the depths of winter when growth slows.

Getting it to rebloom

After the flowers fade, a Phalaenopsis can often produce more. If the flower spike stays green, you can cut it just above a lower node to encourage a side spike; if it turns brown, cut it off at the base. The reliable trigger for a brand-new spike is a few weeks of cooler nights in autumn — a drop of about 5–8 °C (10–15 °F) at night for two to four weeks. Combined with good light and steady feeding, that usually brings a fresh spike within a couple of months.

Repotting

Repot every one to two years into fresh bark, ideally just after flowering, and trim away any soft or brown roots while you are in there. Old, broken-down medium that stays wet is a fast route to root rot.

Because every one of these rhythms — watering, feeding, blooming, repotting — plays out over weeks and months, the easiest way to truly learn your plant is to keep a dated record and let the pattern reveal itself.