Why Are Peperomia Called Radiator Plants

For both novice and seasoned plant owners, learning how to cultivate radiator plants is worthwhile! What exactly is a radiator plant, you might be asking? It’s a moniker for Peperomia, a common kind of houseplant. How come Peperomia is known as the “radiator plant”? Because of this, a location next to a vent or a radiator will be the ideal home for these adorable creatures.

Peperomia radiator plants come in a variety of varieties, and there are so many good reasons to enjoy them! Here’s how to grow these adaptable plants in your own backyard.

Do radiator plants contain poison?

The ASPCA believes that peperomias is non-toxic and a plant that cats can tolerate, which is wonderful news. When utilized as ground cover, horses may graze on them without danger. These plants are adored by cats and dogs. Despite the fact that the plants are not poisonous, this could cause them to consume enough to become ill.

A succulent, is the radiator plant?

Green leaves on Peperomia caperata ‘Rosso’ have a reddish brown underside.

Peperomias come in too many varieties for this article to mention them all. Here are some of the peperomia plant species that are most often grown (radiator plants).

  • Baby Rubber Plant, also known as Peperomia Obtusifolia. This variety of peperomia resembles a succulent and has tall stems and big glossy green leaves.
  • Trailing jade, also known as Peperomia Rotundifolia. This trailing kind of peperomia, which has tiny, thick, and fleshy leaves, is also known as round leaf peperomia.
  • Peperomia de watermelon (Peperomia argyreia). The circular, bright green leaves on this well-liked indoor peperomia plant have dark green stripes. The leaf patterns resemble the rind of a watermelon.
  • Insect Peperomia (Peperomia quadrangularis). The dark-green striped ovate leaves and trailing stems of this peperomia make it a beautiful hanging basket.
  • Spectrum Peperomia (Peperomia clusiifolia). This lovely peperomia has elongated leaves with blushes of light pink and cream along the edges.
  • Peperomia columbiana (Peperomiametallica). This bushy, compact house plant will add brightness to any space thanks to its eye-catching red and silver foliage and little leaves.
  • Perciliata Peperomia (Peperomia perciliata). This lovely indoor plant, which grows easily, has thick green leaves that resemble succulents and scarlet stems. In terrariums, hanging baskets, and bright, sunny locations, this peperomia thrives.
  • Red-Ripped Pepperwort (Peperomia caperata). Deep veins in the gorgeous reddish-purple foliage give them a rough appearance.
  • Peperomia obtusifolia ‘Marble’, also known as peperomia. This radiator plant has spoon-shaped, bright green and yellow variegated leaves.
  • Rosso Peperomia Caperata (Peperomia caperata). This gorgeous radiator plant, also known as the Emerald Ripple Radiator Plant, features glossy green leaves with eye-catching crimson undersides.

What is the name of the Peperomia flower?

Peperomia is a typically growing, low-maintenance home plant also known as baby rubber plant. This intriguing plant is indigenous to many tropical regions and is frequently found growing as an epiphyte in cloud forests and rainforests (on wood). There are currently more than 1,000 species in the peperomia genus. At least one of them would probably thrive in your house.

Can peperomia be categorized as a succulent?

Hoyas and peperomias are both little plants that require similar maintenance. Both plants resemble succulents and have fleshy stems and leaves. They come in both hanging and upright varieties and make beautiful indoor plants. All of this has to do with peperomia maintenance and how to keep these adorable beauties happy and healthy.

In my garden in Santa Barbara, I raised 2 peperomias in containers. They benefited from the coastal fog while growing in bright shade. Since then, I’ve relocated to Tucson (in the Sonoran Desert), and like the majority of you, I now cultivate them indoors.

There are numerous varieties of peperomias available. They are all covered by this care post.

When I lived in Santa Barbara, my side garden was planted with Red Edge or Jelly Peperomia.

Peperomia obtusifolia (Baby Rubber Plant), Peperomia obtusifolia variegata, Peperomia clussifolia rainbow, Peperomia amigo marcello, and Peperomia caperata rosso are the ones I possess.

Is peperomia harmful to people?

Dieffenbachia typically causes minor yet painful injury. However, the oral irritation could be really bad and linger for several days. Dieffenbachia poisoning has occasionally resulted in fatalities, but this is extremely uncommon.

What Are Safe Alternatives for Dieffenbachia?

If the interesting leaf patterns are what you’re looking, think about getting a prayer plant or a variegated baby rubber plant (Peperomia obtusifolia) (Maranta leuconeura). Although their leaves are smaller than those of a dieffenbachia, they are non-toxic and secure around both children and dogs.

The cast-iron plant (Aspidistra elatior), which has big leaves, might be what you’re looking for. The dieffenbachia’s leaves are big and beautiful, whereas the cast-iron plant’s foliage are long and narrow. The plant is extremely simple to maintain and doesn’t need a lot of water or light.

Can the peperomia plant clean the air?

Peperomia is available in a wide range of shapes, sizes, and hues, from green to pink. Due to the size, form, and coloring of the leaves—which can be small and lush, long and pointed, or strong, in full bush shape—the plants have considerable decorative value. While some Peperomias are mostly known for their gorgeous foliage, some can produce robust green spikes that stand tall and proudly like cheery tails. That foliage’s structure is finely layered, giving the impression that the plant is full and active. According to NASA research, one distinctive feature of Peperomia is that the entire foliage filters the air. It’s important to know that Peperomia lowers indoor formaldehyde levels by 47%, according to the additional Wolverton’s Clean Air study, as the material makes up a sizable component of indoor air.


The majority of the time, peperomias are slow-growing indoor plants that can generally adjust to the amount of light you end up giving them. However, if you’re seeking for the ideal circumstance, it will be one in which there is plenty of strong light but no direct sunshine. The leaves will be scorched and washed out by too much light, whilst ragged, thin, and untidy growth will eventually occur from too little.

Peperomias are also one of the few indoor plants that thrive in fluorescent lighting, so they may be successfully grown year-round in windowless spaces (on the condition that the lights are left on for the most of the day, of course!).


Do take caution when watering these plants because it’s simple to overwater them and produce a rotting environment. Water first, then wait a little while for the soil to start to dry up before watering again.

Don’t allow the soil to become saturated or keep it consistently damp. Peperomias are not desert cactus, though, so keep in mind to regularly assess the situation and supply water as needed. The plant won’t require much in the winter unless it’s exceptionally warm and light.


Some Peperomias do require quite high humidity levels to keep their immaculate beauty. The majority of Peperomias available for purchase as houseplants, however, thrive without any added humidity to the air. When it’s warm out, feel free to spritz the delicate leaves to help keep them dust-free because they can be tricky to clean.


Small plants with slow growth don’t require a lot of fertilizer, and the same is true in this case. Simply fertilize your plant twice a year, in the spring and the summer, with an all-purpose fertilizer.


If you’ve chosen a cool place for its home, peperomias might be difficult to keep looking beautiful in the winter because they hate the cold and drafts so much. Maintaining them in your regularly used living areas and keeping them out of unheated spare rooms will make things easier for you. No lower than 15C/59F is ideal, and for healthy growth during the growing seasons, aim to plant them where the daytime temperature is at or above 21C/70F.


It typically takes a Peperomia several years to fill and outgrow a pot because its roots are not particularly intrepid. Additionally, regular repotting can easily harm the roots because they are small, delicate, and highly brittle. Repotting should only be necessary every two to three years at most, and when it is, use a houseplant mix or regular potting compost.


Peperomia plants are typically trimmed down between early spring and late summer if you’re trying to reproduce, and fortunately, the success rate is typically rather high.

Take stem cuttings if your peperomia is tall, upright, or trailing. This is merely a stalk with one or more leaves attached. The stem is then placed in a cutting compost that is kept warm and wet. If all goes according to plan, roots should have grown and new leaf buds should have begun to emerge in about a month.

Instead, if you have a bushy Peperomia, it is not practicable to take stem cuttings because they frequently get very mushy and simply rot. Thus, you reproduce leaves using leaf cuttings in a manner similar to that of African violets.

Height / Spread

Although there are many various species of peperomia, each of which has a unique growth pattern—some are bushy, some trail—uncommon it’s for the ordinary peperomia to reach heights or widths of more over 25 cm (10 in) or 20 cm (8 in). Don’t expect it to happen quickly, even if the conditions are ideal, as this is a houseplant that need time to reach its full height and spread.


Peperomias are easy-going indoor plants that will flower frequently for you if you follow the above-mentioned basic maintenance instructions. When they flower throughout the year depends vary on the type you have, although it’s more typical for them to do so throughout the summer and fall.

The blooms aren’t very showy or fragrant, but rather are more often called “quirky,” with stems that rise vertically a few inches above the foliage below. Together with the tiny blooms that emerge, the pink stalks often have a slight kink in them, giving them the appearance of a rat’s or gerbil’s tail. Even though it’s quite unique, it will at least show that you’re taking good care of your Peperomia if these weird flowers start to bloom. Keep going.

Anything else?

Since they grow slowly and take a very long time to outgrow their housing, these plants are frequently thought to be ideal for bottle gardens or indoor terrariums. They can also tolerate high humidity levels fairly well, which together qualifies them as prospects.

How do radiator plants appear?

Peperomia species are cultivated for their eye-catching, vivid, and diversely shaped ornamental foliage. Although some have lengthy, pointed leaves, their leaves are typically rounded and fashioned like hearts. Bright green makes up the majority of the foliage of Peperomia species, although it can also be striped, speckled, or marbled. Some of them also produce berries and flowers.

How is a radiator plant propagated?

The optimal humidity range for a radiator plant is between 40 and 50 percent. Because their leaves are succulent, they do not require high humidity to grow because the leaves store water.

If your home is too dry, you might try adding a humidity mat or spraying your surfaces lightly every few days, but make sure to maximize air flow to avoid mold growth.


An easy task is fertilizing a radiator plant. During the growing season, which is the spring and summer, it needs light feeding once a month using 20-20-20 water-soluble fertilizer.

Utilize vermiculite or compost if you wish to use an organic fertilizer.

Simply remove the tiny infant leaves with a few roots and set them on top of the soil. Maintain moisture levels by keeping the soil moist and covering it with plastic wrap to retain moisture in.

Can Peperomia be grown from a leaf?

Using soil is another method of peperomia propagation. I’m now utilizing this technique to grow some tiny ripple peppers. Using a leaf cutting or a tip/stem cutting are the two methods for starting new peperomia plants from cuttings. The tip/stem approach is what I also employ.

Propagating peperomia by stem cuttings

It’s best practice to cut a stem with a few leaves on it if you want to propagate a peperomia plant via a stem cutting. I haven’t always done this, though, and the cutting is still effective. The cuttings must be taken from healthy plants, which is the most crucial thing to keep in mind.

Take off the lower leaves, then soak the stem in a powdered rooting hormone. After that, plant gently in potting soil with good drainage. Once the cutting is planted, you can use a huge plastic bag or another clear plastic item, such a plastic bottle cut in half, to make the smallest greenhouse known to man.

Whatever enclosure you choose, including holes will help with air flow. But every few days, you should still allow the plant to breathe in some fresh air. If you see mold growing, that can be a clue to open the area up a little.

This is my official recommendation, but because I’m lazy, I just leave the majority of my little roots kids planted in an old plastic salad greens container in a humid area with a window (the bathroom). This enables me to reuse something that would otherwise be difficult to throw away and keeps some dampness within.

You’ll see new plants start to sprout after a few weeks (sometimes longer). Once they are big enough to travel, transplant them into various pots. Baby them as they grow into tiny, adorable little creatures!

Propagating peperomia by leaf cuttings

Even peperomia plants can be multiplied by taking leaf cuttings (but remember to use this method only for solid, non-variegated varieties). The procedure is the same as stem cutting propagation; the only difference is that you just need to remove leaves with small stems attached and plant those.

Additionally, when propagating from leaf cuttings, rooting hormone can be used. The procedure is essentially the same, however keep in mind that it takes time!

Peperomia—is it a cactus?

A genus of tropical perennial plants in the Piperaceae family is called Peperomia. The roots of peperomia plants, which are epiphytes, draw moisture and nutrients from the water and air. Peperomias are good indoor plants because of their modest size, low maintenance requirements, and general ease of upkeep.

Peperomias, although having thick, fleshy leaves, are not succulents. Peperomias prefer high humidity in contrast to succulents and need more water than succulent or cactus plants.

The several varieties of peperomia leaves differ greatly from one another. Some types of plants have oval leaves, whereas others have lance- or heart-shaped leaves. Peperomia leaves can exhibit striped, marbled, blotchy, or puckered patterns in addition to being smooth, rippling, or puckered.

The blooms of all peperomia species are a feature in common. On the ends of lengthy stalks, peperomia flowers resemble white or greenish spikes. The unassuming blooms are small, though, and peperomias hardly ever bloom inside.

Radiator plants are the aggregate name for various peperomias species. The peperomias plant thrives in warm climates and bright light, hence the name.