Spider plants (Chlorophytum comosum) will grow best indoors in a room with ambient temperatures between 65-85ºF. In my experience, these plants prefer moderate to high humidity, between 40-80%. In-room humidifiers or humidity trays can be beneficial to provide your spider plant with ideal growing conditions. In this guide, I’ll run through the ideal temperature and humidity ranges indoors and how I keep my spider plant happy and healthy year-round.
Ideal Temperature and Humidity Ranges
Spider plants are native to much of Africa, from Ethiopia to Nigeria and all the way down to South Africa. While they can grow in various habitats, they’re often found in hot and humid rainforests. Some spider plant varieties grow in the dappled understory, while others can be found near the brighter forest edges.
Since spider plants are native to such an extensive range, they are used to various temperatures. However, the majority of their native range experiences temperatures between 50-90ºF throughout much of the year.
Ideal Temperature Indoors
Spider plants prefer temperatures between 65-85ºF. That said, they can tolerate short temperatures outside this range.
The best way to check your indoor temperature is with a thermometer. Measure the temperature where your spider plant lives, as temperatures vary throughout a house.
Besides providing the proper temperature, you should avoid hot and cold drafts. Therefore, you should avoid placing your spider plant near an exterior door, poorly insulated window, fireplace, or heating vent.
Finally, avoid large swings in temperature. While these plants can tolerate slow temperature changes, drastic changes can cause stress. Therefore, avoid suddenly moving your plant from a cold room to a warm room. Instead, allow your plant to acclimate over time.
Ideal Humidity Indoors
Regarding humidity, spider plants will thrive with moderate to high humidity, between 40-80%. This will allow your plants to put on lots of healthy new growth.
With that said, spider plants can do just fine at lower humidity, less than 40%. However, they will not thrive as they would at higher humidity.
The best way to measure humidity is with a device called a hygrometer. This will provide you with a precise measurement of the humidity.
However, you can also sense the humidity based on the time of year and feel. Your house typically has a humidity level above 40% during warmer months. However, indoor humidity often drops during the winter if you live in a cold climate.
If your skin feels dry and you’re experiencing nosebleeds, the air is likely too dry for your spider plant. To keep your plant happy, take measures to boost the humidity in your home.
One option is to use a humidifier. This will help keep your humidity at a consistent level. Other options include placing a tray filled with pebbles and water underneath your plant’s pot.
Picking a Location
As mentioned above, you should keep your spider plant away from hot and cold drafts. You’ll want to look at a few other factors once you find a location with proper temperature and humidity.
Spider plants like bright, indirect light. They can also survive low light, but they will not thrive.
Some good locations for a spider plant include the interior of a bright room or a few feet away from a south-facing or west-facing window. You want to ensure it doesn’t receive direct light no matter where you put your plant.
Even though spider plants aren’t considered toxic to humans, it’s prudent to wear gloves throughout any extended houseplant care project.
For more, see our in-depth guide to the best positions for Spider plants to thrive in the home or office.
How to Boost Humidity in Your Home
I find a humidifier is the best way to boost the humidity in my home. Many humidifiers come with features allowing automatic shut-off once the desired humidity level is reached. This allows for easy care.
Since these devices boost the humidity in an entire room, they are helpful if you have a lot of plants that like high humidity.
If you don’t want to spend the money on a humidifier, there are other ways to increase humidity. I also like spritzing the air around my plants with water, which can temporarily increase the humidity.
Another option is placing a tray filled with water and pebbles underneath your planter, which will also boost humidity. However, since this method works via evaporation, it will not be very effective at low temperatures.
Spring and Summer Care
While most spider plants will thrive outdoors in the spring and summer, you must monitor your indoor environment. If high temperatures lead you to turn on the air conditioning, ensure the temperature is not too low for your spider plant.
I also take note to keep my plants away from AC vents and other drafts.
Over Winter Care
As temperatures drop in the winter, you may turn on the heat to keep your home warm. While these higher temperatures will keep your spider plant happy, they may also lower the humidity.
If your home becomes dry in the winter, you may need to look into increasing the humidity around your spider plant. A humidifier will allow your plant to thrive.
Things to Watch Out For
If you provide your spider plant with improper temperature and humidity, your plant may suffer. Here are some common signs that indicate you may need to correct your plant’s environment.
Brown Leaf Edges
If you notice the tips of your plant’s slender leaves are turning brown or potentially drooping, then something is off. While there are various reasons why this may happen, low humidity is one possible cause.
Other potential causes include dry soil and poor water quality.
While spider plants can survive temperatures outside of the ideal range, they won’t thrive. If you notice your plant isn’t growing, it might signify the air is too cold.
If your plant is kept in an area where the temperature is consistently below 65ºF, it won’t grow very much. Increasing the temperature will lead to new growth.
Fertilizing your spider plant can also help to provide a growth boost.
The sudden onset of soft, mushy foliage indicates that your spider plant was exposed to cold temperatures. Below-freezing temperatures will cause plant cells to expand and burst, creating a mushy appearance.
Even if you move your plant to a warmer area, the leaves will not recover. However, if you trim back the damaged leaves, the roots may produce new growth.
The Final Word
You can keep your plant happy now that you know about optimum spider plant temperature and humidity. Remember to keep the humidity on the higher side and keep the temperature warm.
For more, see our ultimate guide to spider plant care at home.
Briana holds a B.S. in Plant Sciences from Penn State University. She manages a small market garden where she grows vegetables and herbs. She also enjoys growing flowers and houseplants at home.