Checklist For Indoor Plants Yearly

Yearly Plant Care

I keep a spreadsheet for this now. Used to just do it from memory, which meant I missed things. Thrips showed up in my peace lilies for three weeks before I noticed because I hadn't flipped the pots in February. The system that saved me was literally a Google Sheet with tabs for each season and a column for each plant. It sounds like overkill until you've got forty pots and a small apartment. Here's what I actually track. Not everything, just the things that need attention at specific times. Spring (March-April): Repotting if roots are circling or growing out drainage holes. Check soil for compaction and water resistance. Replace top two inches of potting mix. Move plants from low-light winter positions to brighter spots gradually over two weeks. Inspect leaf undersides for overwintering pests. Start fertilizing when new growth appears.

Summer (June-August): Check watering frequency changes with season. Clean dust off leaves every few weeks, which takes maybe ten minutes per plant. Watch for spider mites on dry houseplants near radiators or air conditioning. Rotate pots a quarter turn weekly so they grow evenly. Repot again only if the plant is truly rootbound, not just slow-growing. Fall (September-November): Bring outdoor plants inside before night temperatures drop below fifty-five degrees consistently. Inspect for pests before moving them near indoor collection. Reduce fertilizer as daylight decreases. Start checking humidity because heating systems turn on around October. Move tropicals away from drafty windows. Winter (December-February): Water less but check soil weekly instead of on a schedule. Dust accumulation becomes visible and blocks light, so wipe leaves. Stop fertilizing entirely unless growth is active under grow lights. Watch for leggy growth from low light and rotate more frequently. Check for thrips in any new plants you bring in.

The spreadsheet itself is simple. Columns for plant name, family, water preference, light needs, fertilizer type, and notes. Rows are months with checkboxes. Takes about five minutes each month to update. I keep it on my phone so it's actually accessible when I'm walking around my apartment with a watering can. One edge case that confused me for a while: some plants have a different cycle than the seasons suggest. My calathea, for example, goes semi-dormant in late fall and stays that way until February, but my pothos is actively growing under a shop light the whole time. If I'd followed a generic seasonal schedule blindly, I would have overwatered the calathea and rotted the roots. The workaround was adding a personal notes column where I logged when each individual plant showed dormancy signs. After a year of that, the pattern became obvious enough that I stopped needing the reminder. There are also things this system doesn't handle well. It doesn't account for microclimates inside your space. The plant near the radiator dries out three times faster than the one in the corner, and a calendar can't capture that. You still need to physically check each plant monthly. The checklist catches timing-based tasks like repotting and fertilizing, but soil moisture is a daily or every-other-day check regardless of the month.

Another limitation: the system assumes you remember to open the spreadsheet. I missed the entire fall repotting window for my monstera because I used up the winter and didn't switch the sheet to the fall tab. Setting a calendar notification on the first of each season fixed that. Takes three seconds to set up. If you have fewer than five plants, honestly a notebook works just as well. The spreadsheet overhead isn't worth it unless you're tracking more than that or you tend to forget things, which is basically everyone who keeps plants past year two.