Water each plant by its own rule 1–2 days before you leave and pull sun-lovers back from hot glass. For trips over about two weeks, arrange a sitter rather than trusting a reservoir.
Match the plan to the trip
Most healthy houseplants in suitable pots handle a week alone without help. The risk grows with trip length, summer heat and small pots, which dry fastest. Plan for your longest-to-dry plants and your thirstiest ones separately.
- Up to 7 days: water normally 1–2 days before leaving; nothing else needed for most plants.
- 8–14 days: move thirsty plants out of direct sun, group them, and use a tested wick or one sitter visit halfway through.
- 15 days or more: a sitter every 7–10 days, with written notes for each plant.
- Snake plant, ZZ, aloe and other succulents: water only if they are already dry. They handle 3–4 weeks without water easily.
Slow down water use before you go
A plant’s water use is driven by light and heat. Pulling plants 1–2 m back from south- or west-facing windows (north- or west-facing in the Southern Hemisphere) cuts their light and transpiration without harming them for a few weeks. In summer, closing blinds on sunny windows keeps the room cooler; in winter, never let the heating drop below 12–15 °C, the minimum for monstera, pothos, peace lily and fiddle-leaf fig.
Water thoroughly until 10–20% runs out, then empty every saucer and cachepot. Do not leave plants standing in water “to be safe”: after a week in a flooded saucer the lower mix is airless and the roots start to die. Skip fertilizing, repotting and pruning in the two weeks before departure so you do not leave a stressed plant with no one to watch it.
DIY watering aids that actually work
A capillary wick is the most reliable low-tech option: a cotton or nylon cord running from a jug of water into the mix, pushed about 5 cm deep near the roots, with the jug at the same height as the pot or slightly above. For a group of plants, stand the pots on a thick, wet towel in a bath or sink with 1–2 cm of water, provided the room has a window. Small humidity-lovers such as ferns can go inside a loose clear plastic tent, kept out of direct sun so they do not cook.
Whatever you choose, run it for a full week while you are still at home. Wicks can deliver far more or far less than you expect depending on the cord and the mix, and you want to find that out before the trip, not after it.
Brief your sitter plant by plant
“Water everything on Saturday” is how sitters kill cacti and let peace lilies collapse. Give instructions they can check for themselves: “push a finger in to the second knuckle; if it’s dry, water until it drips from the bottom, then empty the saucer within half an hour.” Put a coloured tag in each pot, say green for check-and-water and red for do not water, and leave a photo of each plant with its name.
PlantPal’s Plant Sitter feature gathers clear care instructions for each plant in one place for the person looking after them, which beats a long note stuck to the fridge. Leave your contact details, or those of a plant-savvy friend, for anything that looks wrong.
Coming home
Resist the urge to water everything the moment you walk in. Check each pot first: the sitter may have watered yesterday. A wilted peace lily usually recovers within hours of a thorough watering; a root ball that has dried rock-hard and shrunk from the pot wall is best rewetted by standing it in water for 20–30 minutes. Move plants back to their usual positions and, if you used a reservoir or wick, flush them with a top watering to clear any accumulated salts.
