We get some version of this question at the counter probably ten times a week: how often should I water this? It is a completely reasonable question, and we understand why every plant tag and gift-shop paperback wants to answer it with a number. A number is comforting. A number fits on a sticker.
Here is the uncomfortable truth: there is no number. Not a real one, anyway. How often a plant needs water depends on its pot size, the material of that pot, your home’s light, your home’s humidity, the season, the specific plant, and honestly, the specific pot of soil it happens to be growing in that week. Two identical Pothos on two different windowsills in the same house can be on completely different schedules. We know this because we have watched it happen on our own shelves.
Watch the plant, not the calendar
The plants that struggle in our customers’ homes are almost never underwatered. They are overwatered, on a schedule, out of love, every Sunday like clockwork, whether the soil needs it or not. Roots don’t drown from too much water so much as they suffocate from too little oxygen in soggy soil, and that’s when rot sets in.
So we ask people to build a habit of checking instead of a habit of watering. Stick a finger into the soil up to your second knuckle. If it’s dry at that depth, water. If it’s still cool and damp, walk away and check again in a few days. It takes thirty seconds and it will save you more plants than any app reminder.
A few reliable signals
- Pot weight. Lift the pot right after you water it, then lift it again before you’re about to water next time. A dry pot feels noticeably lighter. This works especially well with plastic nursery pots.
- Leaf feel, not just leaf droop. A thirsty Snake Plant will show it differently than a thirsty fern. Get to know how your specific plant sulks.
- Terracotta dries faster than plastic or ceramic. If you just repotted something into one of our Classic Terracotta Pots, expect to water more often than you did in the plastic nursery pot it came in.
Different plants, different relationships
A Snake Plant ‘Laurentii’ wants you to basically forget it exists for two or three weeks at a stretch, especially in fall and winter. A Boston Fern, on the other hand, wants consistent moisture and will tell you fast, with crispy fronds, if you let it dry out completely. Neither one is high-maintenance or easy-going in some universal sense — they just want different relationships, and your job is to figure out which kind of relationship you signed up for at the register.
This is also why we ask what kind of light a space gets before we recommend a plant, rather than just asking “how often do you want to water.” The honest answer is usually somewhere between “not on a fixed schedule” and “it depends,” which is not a satisfying thing to hear from the people who sold you the plant, but it’s the truth, and it works better than a sticker ever will.
When in doubt, under-water
If you’re genuinely unsure, err on the side of waiting. A plant that’s a little too dry will tell you clearly and recover quickly once you water it. A plant that’s been sitting in soggy soil for weeks may already have root damage you won’t see until the leaves start yellowing, and by then the fix is a lot more involved than just watering less.
Bring your plant in if you’re ever stuck. We would much rather look at it in person for thirty seconds than have you guess.