How to Water your Houseplants While You’re Away
To keep your houseplants well-watered during your summer vacation, move them back from the window and water them thoroughly, for once leaving water in their saucer. With a surplus of water and less intense light, they can easily go two weeks without watering.
Leaving for 3 weeks or even a month? Water them sparingly, move them well back from the window… and seal them in a clear plastic bag. This eliminates water loss due to transpiration. You can even leave them sealed like this for 6 to 8 months without fear for their health!