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Monstera plants, often known as Swiss cheese plants, are beloved houseplants known for their dramatic, fenestrated leaves and relatively low-maintenance care.
But as summer rolls around and the temptation to spruce up your outdoor space grows, many plant parents wonder: Can I leave my monstera outside in the summer?
Let’s dive into the details to ensure your monstera thrives, whether it’s soaking up summer vibes in the backyard or staying cozy indoors.
Can I Leave My Monstera Outside in the Summer?
Yes, you can move your monstera outside during the summer, but it’s important to do so with care.
Native to the tropical rainforests of Central and South America, monsteras thrive in warm, humid environments with filtered sunlight.
Moving your monstera outdoors can mimic its natural habitat, providing fresh air and stimulating growth.
However, sudden changes in environment can stress the plant. Gradually acclimating your monstera to outdoor conditions over a week or two is essential.
Start by placing it in a shaded, protected spot for a few hours daily and slowly increasing its outdoor exposure.
Key Considerations:
- Lighting: Avoid direct sunlight, as it can scorch your monstera’s delicate leaves. Place it in a location with bright, indirect light or dappled shade.
- Temperature: Ensure temperatures consistently stay between 65–85°F (18–29°C).
- Humidity: Outdoor humidity is usually beneficial, but in particularly arid climates, you may need to mist your plant or use a humidity tray.
- Wind and Pests: Protect your monstera from strong winds and check for pests like spider mites, aphids, or mealybugs that can infest plants outdoors.
Can a Monstera Survive Outside in the UK?
The UK’s climate presents challenges for keeping a monstera outside, even in the summer.
Summers are often mild, with temperatures ranging from 60–75°F (15–24°C), which is generally suitable for a monstera. However, sudden weather changes, rain, and cooler nights can stress the plant.
If you live in the UK and want to give your monstera some outdoor time:
- Monitor Weather Closely: Ensure there are no prolonged cold snaps, and bring the plant inside if night-time temperatures drop below 55°F (13°C).
- Sheltered Placement: Place your monstera in a covered area, such as a patio or greenhouse, to protect it from heavy rain and wind.
- Humidity Advantage: The UK’s naturally humid summers are a bonus for monsteras, so they’re less likely to experience dry leaf tips outdoors.
Overall, while a monstera can enjoy some time outside in the UK during mild summer days, it’s not an ideal long-term outdoor environment due to unpredictable weather and lower average temperatures.
Can a Monstera Survive Outside in the USA?
The USA’s diverse climate zones mean the answer depends on where you live.
Monsteras thrive outdoors in USDA hardiness zones 10–12, which include tropical and subtropical regions like Florida, Hawaii, and parts of southern California.
These areas provide the warm temperatures and humidity monsteras need to flourish year-round.
For those in cooler climates:
- Summer Placement: If you live in a temperate region with warm, consistent summers (zones 6–9), you can place your monstera outside during the summer months, following the same acclimation process mentioned earlier.
- Desert Climates: In areas like Arizona or Nevada, where summer temperatures can exceed 100°F (38°C), outdoor conditions can be too harsh without shade and additional humidity.
- Cold Climates: For states in zones 5 and below, the growing season is too short, and night-time temperatures may dip too low, even in summer. Keep your monstera as an indoor plant year-round.
Regardless of your location, always watch for signs of stress, such as browning leaves, drooping, or slowed growth, when transitioning your monstera outdoors.
How Hot is Too Hot for a Monstera Plant?
Monsteras are heat-loving tropical plants, but even they have their limits. Generally, temperatures above 85°F (29°C) can start to stress a monstera, especially if paired with low humidity and direct sunlight.
Signs Your Monstera is Overheating:
- Wilting or Drooping: Heat stress can cause the plant to lose rigidity.
- Leaf Scorch: Yellowing or browning of leaves, particularly on the edges, often indicates too much heat or sun exposure.
- Dry Soil: If the soil dries out too quickly, it can compound the effects of high temperatures.
Preventing Heat Stress:
- Provide Shade: Use a canopy, umbrella, or shade cloth to block intense midday sun.
- Increase Humidity: Mist your plant, use a humidifier, or place it near a water source to mimic its natural humid environment.
- Water Regularly: Ensure consistent watering to keep the soil moist but not soggy. Water more frequently in extreme heat.
If you live in a particularly hot area, monitor your monstera closely and move it indoors during heatwaves or scorching afternoons.
Final Thoughts
Yes, you can leave your monstera outside in the summer, but whether it thrives depends on careful consideration of its needs and your local climate.
In the UK, its outdoor time should be limited to mild summer days, while in parts of the USA, outdoor placement can range from seasonal to year-round, depending on your region.
Always watch for signs of environmental stress and be ready to adapt your care routine. With proper attention, your monstera can enjoy the best of summer outdoors while staying healthy and vibrant!