Ficus Care Calendar: What to Do Each Season

The year at a glance

A ficus grows hard through the warm half of the year and effectively holds still through the cold half. Every job that stresses the plant, repotting, pruning, propagating and moving it, belongs in the growing half. The cold half has only one instruction: leave it alone and water it much less.

The two moments when leaves drop most are the week the heating goes on and the week it goes off. Both are sudden changes in air temperature and humidity, and both are predictable, so anticipate them rather than reacting.

Spring is when the work happens

As the light strengthens and the room warms, the plant starts moving and can recover from disturbance. This is the only sensible window for repotting, hard pruning, root pruning, cuttings and air layering, and it is worth planning what you intend to do before it arrives.

Do one disruptive thing at a time. Repotting and hard pruning in the same week is too much for a plant that has just come through winter. Repot in late spring, then prune the following year, or prune first and repot the year after.

1. Wait for the first new leaf A new leaf opening is the signal that the plant is genuinely growing again. Start feeding then, not on a date.
2. Clean the leaves Wipe each leaf with a damp cloth, supporting it with your other hand. A season of dust measurably reduces the light reaching the leaf, and it is also when you find the scale you missed all winter.
3. Top dress instead of repotting If the plant does not need a bigger pot, scrape off the top two inches of compost and replace it with fresh. It refreshes the nutrients without disturbing a single root.

Summer

Growth is fastest, water use is highest, and this is when a ficus repays good light with real size. It is also when spider mites take hold and when strong afternoon sun through glass scorches leaves, so the position needs a second look even if it was right in spring.

If you put the plant outdoors for the summer, harden it off over two weeks in full shade before giving it any direct sun, and bring it back inside well before nights fall below 55F (13C). Wash the leaf undersides and the outside of the pot before it comes in so you do not import pests.

Ease off feeding in genuinely hot weather. When roots are struggling at high temperatures, fertilizer damages them, and the visible result is leaf drop that looks like something else entirely.

Autumn is the switch you must not miss

Two things change at once and both need acting on. The light weakens, so a position that was correct in summer is now too dark and the plant needs to move back towards the window. At the same time growth slows, so the plant uses far less water and the interval must start stretching.

Stop feeding before the temperature drops rather than after. Fertilizer still in the compost when growth stops sits there all winter and damages roots. This is also the moment to check the plant over for scale and mites, because once the heating goes on a small population becomes a large one in weeks.

1. Bring outdoor plants in early Do it while nights are still comfortably above 55F (13C). A plant brought in after a cold snap sheds far more heavily than one moved in good time.
2. Move it before it complains Reposition for the weaker light while the plant is still growing, so it adjusts with some capacity to spare rather than in the middle of winter.
3. Stretch the watering gradually Add a few days to the interval each time rather than making one abrupt change. Keep checking the compost with a finger, which never goes out of date.

Winter: hold the plant, do not grow it

The winter job is maintenance and nothing else. Water rarely, feed not at all, do not prune, do not repot and do not move it. Keep it in the brightest position available, away from cold glass at night and out of the direct draft of any heater or vent.

One or two lower leaves yellowing and dropping over the winter is normal turnover. A steady succession of leaves falling is not, and the cause is nearly always one of three things: watering on a summer schedule, a draft you have not found, or a room that is dropping below 55F (13C) overnight.

Resist the urge to feed a plant that looks unhappy in winter. It is not hungry, it is dormant, and fertilizer on inactive roots burns them. Wait for spring.

Building your own calendar

The seasons above are a starting point, but the room matters more than the climate. An unheated room and a heated one behave completely differently in the same house, and a north window in a mild climate can be better than a south one in a hot dry one.

Keep one note per plant with the date it was last repotted, last pruned and last fed, plus the weeks it dropped leaves. After a single year that record beats any general calendar, because it describes your room rather than an average one.