Some indoor plants require higher humidity levels than what we often have in our houses. In fact, some people may even display health problems if they don’t obtain enough moisture in the air.
As worried houseplant owners, we frequently search for more obvious solutions (such watering or lighting) to address issues. When the problem could be resolved with a slight increase in humidity, we may instead overcompensate by giving our plant too little water or light.
Plants that need high humidity
High humidity is ideal for ferns, carnivorous plants, prayer plants, nerve plants, philodendrons, monsteras, orchids, fiddle leaf figs, anthuriums, and the majority of other tropical plants!
Symptoms of Low Humidity
Due to curling, the underside of this Calathea ornata leaf is visible and is a dark maroon color. The tip is dark as well. Both indicate low humidity.
Because some symptoms of low humidity can be confused with those of being underwater or having too much light, diagnosing it can be a bit challenging. The tips or margins of leaves are susceptible to drying out and turning brown. (Underwatering is typically observed more on the sides, whereas tips typically indicate concerns with humidity.) Flowers or leaves may wither and dry out. Some plants have leaves that curl downward or inward. A young leaf that unravels and seems deformed may have grown when the humidity was too low.
Symptoms of too High Humidity
Some plants, such as the majority of cacti and succulents, favor dry environments. For too long, extremely humid conditions can cause fungus problems, which can cause the plants to lose leaves or branches and eventually perish. Overwatering could potentially cause similar symptoms.
Seasonal Differences
During the warmer months, a typical residence has a relative humidity of between 40 and 60 percent. While many houseplants are OK with this, some might require some additional care in order to thrive.
The relative humidity of a typical home drops to between 10% and 40% in the winter, especially when the central heating is on. This will be difficult for many plants, so you might need to take some action to raise it. Of course, most succulents and cacti won’t experience any problems!
Humidity and Air Circulation
If you want to increase humidity using any of the following methods, please also provide adequate air movement. A combination of high humidity and poor circulation might lead to fungal problems.
How to increase humidity?
Placement of plants in an area of your home that is naturally more humid is one of the simplest ways to boost humidity. Examples are the restroom or the area around the kitchen sink.
Grouping Plants
You might also consider putting your plants that benefit from dampness together. Plants enhance the humidity in their immediate environment by transpiring. They form little micro-climates with enhanced humidity when they are gathered together.
Humidity trays
You may easily raise the relative humidity directly around a plant by placing pebble trays with water in them underneath your plants. Make sure the stones are keeping the pot’s bottom above the water if you don’t want the substrate to become overly soaked (potting media.)
Humidifier
If you want more control over your humidity levels, buying a humidifier can be the best option. Many allow you to choose a desired level of humidity, and they will adjust their moisture production to meet that target.
Fountains and Aquariums
Other alternatives include an open-air aquarium or a bubbling, moving fountain like the one shown at the top of this piece. Aqua-scaping ideas can also be found in aquariums. (As an added plus, aquarium water makes excellent, gentle plant fertilizer.)
Terrariums and Cloches
Making a humid environment inside a transparent enclosure or dome is a fun technique to raise humidity. Any glass or plastic container can be used for this. Remember to sometimes open your vessel if it is primarily closed to ensure that your plants receive enough air circulation.
What About Misting?
Misting is frequently recommended as a means to boost humidity, however it has a minimal overall impact and only temporarily raises humidity. Plants will absorb water drops that fall on their leaves, but misting can also cause water to remain on leaves for an excessive amount of time, which may result in fungus problems (especially in cooler temperatures.)
What indoor plants require a humidifier?
Many common houseplants thrive when there is more moisture in the air, with the exception of succulents and cactus. Many plants, like peace lilies and Monstera, are used to tropical climates, including orchids and aroids.
These tropical plants aren’t used to reduce humidity, unlike succulents, which store water in their fleshy leaves.
There are a few ways for plants to take in moisture from their surroundings, and depending on the climate where they come from, these techniques can differ greatly from one plant to the next.
Some Houseplants has Less Robust Root System
A plant absorbs water mostly through the earth through its roots. Desert-adapted plants have developed strong root systems that allow them to benefit from any available water.
Tropical plants, on the other hand, don’t actually require such a strong root system because there is constantly water where they are from!
Plants that are epiphytic have developed to take in moisture from the atmosphere. Typically, this type of plant will climb or grow on other trees or plants. Orchids, tillandsia (air plants), and monstera are a few epiphytes that are well-known.
These houseplants range in root structure from structured aerial roots to completely lacking roots. Because of this, epiphytes require greater humidity levels to flourish.
Some Houseplants Has Thin Leaf System
Although there are a number of intricate biological processes at play, the water essentially travels up to the leaves, where it is either stored or released into the atmosphere.
Cacti and succulents store water in their leaves for times when there may not be any. They are consequently exceptionally tough plants.
Due to the constant humidity and rainfall, tropical plants don’t have any places to store water in their leaves and never have! These plants can leak surplus water from their leaves through a process known as guttation since there is typically a lot of water present.
Stomata, or the pores on leaves, essentially allow plants to breathe. They let out water vapor and let in carbon dioxide. Depending on the humidity level, they can either open or close. However, if they remain closed for an extended period of time due to dry air, it feels like the plant is holding its breath.
Indoor environment has less humidity
Okay, now that we have a better understanding of how various plants develop in their native environments, let’s take a closer look at the climate within your house.
Your home will maintain a relative humidity between 40% and 60% when the weather is warm and pleasant, which is good for most houseplants. The relative humidity might fall as low as 10% during the winter while the heater is on.
Your tropical plants suffer because they need more moisture in the air, much like you can get dry skin and a scratchy throat from this dry air.
Misting or Pebble tray is not enough
It’s a widely held belief that spraying your plants would assist the humidity level rise. Unfortunately, it’s not really effective. The leaves of your plant will experience a brief, slight rise in humidity after misting. You would have to mist this item every 30 minutes in order for it to be useful.
Furthermore, the residual droplets from misting plants in direct sunlight can function as tiny magnifying glasses and burn marks on the foliage. Additionally, excessive moisture throughout the night can take too long to drain and can serve as a breeding ground for mold and fungus. Sorry, no thanks.
All misting is good for is strengthening your forearms, and that’s about it.
Another popular way to raise relative humidity around your plants is to place a pebble tray with water in it nearby. They function by adding water to the vicinity of your plants. The relative humidity in that area rises as a result of the water evaporating into the air over time.
Pebble trays are more effective than misting, although they fall short of humidifier use.
Do houseplants require humidity?
When the humidity for houseplants is outside that range, it stresses the plants, which need humidity levels between 40 and 60 percent. In the absence of a hygrometer, keep an eye out for stressed-out behaviors in your indoor plants.
When your indoor plants display these signs, think about increasing humidity levels:
- Brown borders appear on leaves.
- Plants start to wither.
- Before they open, flower buds deform improperly or fall off the plant.
- Flower buds quickly shrink after opening.
Which plants are hygrophilic?
- Fern. According to Mast, several ferns, like the Kimberly queen fern, bird’s nest fern, and blue star fern, thrive in additional wetness and flourish nicely in a bathroom habitat.
- Gardenia.
- Viper plant
- Venomous plant.
- lounge palm
- Plant a prayer.
- Nerve tissue.
- Monstera.
Do my plants need a humidifier nearby?
Homes with central heating stay dry in the winter and fall. The same is true in the summer for homes with often running air conditioners. Most plants do not grow well in arid environments, but cacti and succulents do. Either you enhance the humidity in your home or you grow plants that prefer or can withstand dryness.
The simplest and most obvious answer is a humidifier. Most indoor plants benefit from the extra moisture. Additionally, it benefits both people and furnishings. If you don’t want to invest in a room or whole-house humidifier, consider placing a tiny vaporizer close to plants.
Additionally, grouping plants is beneficial because they can absorb one other’s moisture when one releases it. Keep in mind that plants need excellent air circulation to fend off illness despite their love of humidity. Individual plant leaves shouldn’t touch. Although it won’t always be possible, try to allow each plant some breathing room.
Finally, frequently sprinkle your plants with tepid water in a thin mist. Leaf tops and bottoms are misted. Morning misting will give plants time to dry over the day. Disease is encouraged by nighttime misting. Misting aids in the prevention of some insects, particularly red spider mites, in addition to raising the humidity level surrounding plants.
Does pothos enjoy moisture?
accept low and medium light. In brighter light, the variegation will be more noticeable. Direct sunshine will not be good for your Pothos because it will scorch the foliage.
In the saucer, they gathered. Watch out for yellow leaves; they are a sign of excess moisture.
Although it will flourish in a more humid setting, such a bathroom or kitchen, this plant will survive in low-humidity areas. Brown leaf tips could be a sign of very dry air.
Use a general-purpose indoor plant fertilizer to feed your plants once a month or every other month in the spring and summer. Make sure the soil is moist before adding any fertilizer, regardless of form.
Both people and pets are slightly poisonous from pothos. Ingestion frequently results in tongue and stomach discomfort, as well as potential vomiting.
As they appear, remove any stems or leaves that are infected, damaged, discolored, or dead. In order to prevent ripping or bruising of the stems, use clean, sharp scissors. Just above a leaf node, trim stems; new growth will sprout from this cut.
Does humidity favor spider plants?
Although your spider plant will survive in lesser light levels, it will thrive in strong indirect light. With indirect lighting, the leaf stripes will be more visible. Avoid the sun’s direct rays since they will burn the leaves. Use a grow light if you don’t have the best place for your spider plant.
When the top half of the soil is dry, water your spider plant. till liquid passes through the water
Drain any excess water from the saucer using the drainage hole in the bottom of the pot. Browning leaf tips may be caused by chemicals found in water that lead to build-up. If so, either use filtered water or let the water lie outside all night before watering.
Although it will thrive with a little more humidity, your spider plant will survive in low humidity situations. If your spider plant’s leaf tips are brown, the air may be excessively dry; thus, spritz it frequently with a Mister.
Feed indoor plants once a month in the spring and summer using a liquid fertilizer like our All Purpose Fertilizer (20-20-20).
The “spiderettes,” or “pups,” of mature spider plants. These are fresh plant ramifications of the
mother plant from which you can cut off and grow a new plant from scratch. Cut the baby plant from the mother and put the bottom end in a glass of water to reproduce it. In 24 weeks, roots ought to start to appear. Plant the pup in soil once roots have formed, and water it frequently. Use clean, sharp Plant Snips to tidy up your plant if your Spider Plant needs a trim.
Are succulents humidity-required?
An average residence has a humidity level of 30 percent or less. The majority of plants, including succulents and cacti, enjoy humidity levels of 40% or greater. The majority of tropical plants need at least 60% humidity. In our experience, a humidity level of at least 50% is ideal for both people and plants in a house.
Your plants will probably let you know if they need more or less humidity, so you don’t need to measure it precisely (hint: keep reading to the next sections). However, there are several affordable, trustworthy hygrometers accessible online if you are worried about getting the humidity precisely right. This is the one we employ.
House plants typically require less warm air and more wet air than you may imagine. Usually, leaves that are papery or thin, like those of a fern or air plant, require more humidity than leaves that are robust, like those of a fiddle-leaf fig. If you wish to cultivate plants other than succulents and cacti in your house, we advise using one of the following strategies to raise the humidity there. This will ensure that your plants are healthy and happy.