Coming from the lush tropics, sensitive plants (Mimosa pudica) aren’t exactly built for our chilly winters. Most of us treat them as annual houseplants, but if you’re up for a little gardening challenge, it is actually possible to keep them going through the winter with the right setup.
Sensitive Plants Aren’t Cold-Hardy
Since these beauties hail from tropical South America, they’re used to balmy temperatures and plenty of humidity. They have zero tolerance for the cold and are definitely not winter-hardy.
If the thermometer dips below 50-55°F (12°C), these tropical plants can suffer permanent damage. When they get too chilly, they’ll let you know by dropping their leaves and refusing to bloom.
Annual Houseplants
Because they don’t always handle a heavy pruning well, sensitive plants can start to look a bit “leggy” or unkempt after a year. That’s why most folks just keep them as annuals. When spring rolls around, it’s easy enough to start fresh from seed or pick up a new one at the nursery.
Yes, You Can Overwinter Them!
Even though they can be a bit finicky, you can certainly try to keep your Mimosa alive until next season. It takes some patience and a close eye on their environment. The “Big Three” things you’ll need to focus on are:
- The perfect spot
- Consistent warmth
- High humidity
The Right Location
Sensitive plants love a bright spot, but they aren’t fans of being scorched. Direct midday sun can be a bit much, so an east- or west-facing window is usually your best bet for happy lighting.
Keep It Warm
These plants need a steady temperature between 65°F and 72°F (18-22°C) all year round. Even in the dead of winter, try to keep things cozy. Whatever you do, don’t let the room drop below 54°F (12°C), or your tropical friend might not make it.
Boost the Humidity
Warmth is great, but dry air is the enemy. Between the furnace and the fireplace, indoor air gets pretty parched in the winter. To keep your Mimosa happy, aim for 50-60% humidity. You can do this by placing water bowls nearby or using a pebble tray to add moisture to the air.
Winter Care Tips
Make sure your plant gets plenty of light and keep the soil consistently moist (but not soggy). Maintaining that high humidity isn’t just good for the leaves—it also helps prevent spider mites, which love dry indoor air!
