Yes, you should keep watering. Watering christmas cactus october is part of the rhythm, not a habit to drop. October is the month buds are setting, so this is the worst time to let the pot go bone-dry. A plant left dry now will often shrivel its tiny buds and drop them before a single flower opens. The goal is steady, light moisture.
Plenty of people read that this plant likes to dry out and take that as a green light to stop fall watering in autumn. That advice fits the deep rest period some growers use later, but it backfires in October. The buds are forming right now, and they need water to swell. Think of it this way. A true rest with very little water comes after the show, not during the buildup to it. Cutting water too soon trades a few weeks of tidy soil for a season with no flowers.
Here is what dryness does to the plant during bud set. Each forming bud pulls moisture from the stem segments, and a dry root zone cannot keep up. The plant reads that stress as a signal to cut its losses, so it aborts the weakest buds to protect itself. You see them yellow, soften, and fall.
Soggy soil causes the opposite problem and is just as bad. Roots sitting in water start to rot, and rotten roots cannot feed the buds either. So both extremes end the same way, with dropped buds and a sad plant. The trick during bud set watering is the middle path of even, light moisture.
In October, check the soil with your finger every few days; water when the top inch (2.5 cm) is dry so buds never dry out, but pour off any water left in the saucer.
How much is light moisture in real terms? Water when the top inch (2.5 cm) of soil feels dry to your finger, and stop as soon as a little runs from the drainage holes. In fall this usually means a slightly lighter touch than summer, since cooler air and shorter days slow how fast the pot dries. You are spacing waterings out a bit, not skipping them. Water the soil itself, not the leaves, and let any excess drain right through. Then tip out whatever collects in the saucer so the pot never sits in a puddle. A pot with drainage holes and a chunky, loose mix makes this far easier to get right.
Your watering also has to line up with the rebloom routine that triggers buds in the first place. This plant sets buds in response to cool nights around 55°F (13°C) and long, unbroken darkness each evening. Give it about 13 to 14 hours of true dark, away from lamps and TV glow. Keep the daytime spot bright but out of harsh sun.
Once the buds show up, two rules matter most. First, hold your moisture even, because a sudden swing from dry to flooded is a classic trigger for bud drop. Second, stop moving the plant once buds form, even by a quarter turn toward the window. The plant orients its buds to one light source, and rotating the pot can make it shed them in protest.
The simple test to lean on all month is the top inch dry check. Press a finger into the soil up to your first knuckle, and if it comes out clean and dry, give the plant a drink. If soil still clings to your skin, wait another day or two and check again. That one habit keeps the roots safe and the buds plump straight through to bloom.
Read the full article: Christmas Cactus Care: A Complete Guide
