Air Plant Care Through the Year: A Season by Season Routine

The year at a glance

Air plants do not have a hard dormancy, but they grow strongly in the warm half of the year and slow right down in the cold half. Everything active, feeding, separating pups, moving plants outdoors, belongs in the warm half. In winter the job is simply to hold the plants without rotting them.

The table below is the whole routine on one page. Adjust the intervals by how the leaves feel rather than following them rigidly, because a heated room in winter can dry a plant faster than a shaded porch in summer.

Soak in the morning in every season. The plant should be dry at the base well before the temperature drops at night, and that matters most in autumn and winter.

Spring: the working season

As the light strengthens and the room warms above about 60F (16C), growth restarts. Shorten the soaking interval gradually rather than all at once, and begin feeding at quarter strength once a month as soon as you can see new growth in the center of the plant.

This is the right time to separate any pups that have reached a third of their parent's size, because a pup separated into warm, bright conditions establishes quickly. It is also the time to review positions: the plant that stretched and went dark green over winter needs somewhere brighter, and the sun is now strong enough that a south facing spot which was fine in midwinter will scorch.

Summer: shorten the interval, protect from sun

In warm weather plants dry out faster and want soaking every four or five days, sometimes more often for the green, smooth types in an airy position. Soak in the morning and never in the heat of the afternoon, when the water sitting on the leaves under strong light does more harm than good.

Air plants do well outdoors in summer in bright shade, under a tree or on a covered porch, and often color up and flower better for it. Move them out only once nights are reliably above 50F (10C), start them in deeper shade for the first week, and site them where prolonged rain will not leave them sitting wet in still air.

Autumn: make the change early

The mistake in autumn is leaving everything a fortnight too late. As the light weakens, the position that suited a plant all summer becomes too dark, so move plants back towards the brightest window before the growth starts stretching. At the same time start lengthening the soaking interval, because a cooling room dries a plant far more slowly.

Stop feeding before the temperature drops rather than after. Anything the plant cannot use while it is still growing does nothing useful over winter. Bring outdoor plants in before nights reach 50F (10C), and check every one of them at the leaf bases before it goes back on a shelf with the others, because pests picked up outdoors spread fast in a warm room.

Winter: water less and leave them alone

Cold and damp together is the combination that kills air plants, so winter watering is about timing as much as frequency. Soak on a mild morning, shake the plant out harder than usual, and give it longer to dry before it goes back on display. In an unheated room below 50F (10C), stretch the interval to two or three weeks.

A heated room is a different problem: it is warm but extremely dry, and plants there still want soaking every seven to ten days, with a misting between soaks to take the edge off. Keep every plant off cold window glass overnight and out of the direct draft from a heater. Do not feed, do not separate pups, and do not move plants outdoors on a mild day, because the cold night that follows undoes it.

Frost kills an air plant outright and the damage appears within a day as translucent, water soaked patches. If one has been caught by a cold night, there is nothing to do but check whether the center is still firm.

Building your own calendar

The intervals above are a starting point, not a rule, because the deciding factors are your room and your position rather than the season on the calendar. The way to replace guesswork with something reliable is to write down what you actually do and what actually happens, and it takes about ten seconds a week.

Record the date of each soak and which plants you soaked. Record where each plant sits, and update it when you move one. Record the date any plant blushes, flowers or produces a pup, and the date any plant develops a problem. After one full year you will know that the plants on the east window want soaking every five days from spring to autumn and every ten in winter, that the ones on the interior shelf never flower, and that the two plants you lost both lived in the same still corner. That is a calendar built from your own conditions, and it will beat any general schedule.