Watermelon Peperomia: 1 Vital Care Tip and How to Propagate

Some of the links in this post may be affiliate links.

Share this post!

Watermelon peperomia, or Peperomia argyreia, is a beautiful foliage houseplant named after the fact that its leaves resemble watermelon rinds. And what beautiful foliage it is! I've known many people that have killed this plant, but if you follow my tips, you can succeed so keep reading!

Would you like to save this post?

Enter your email, and I will send this link straight to you!

This plant is truly easy to grow if you follow my lead!

WATERMELON PEPEROMIA CARE

Although this plant is mainly grown for its foliage, it is a flowering plant. No one would purchase it for its flowers, but they do bloom!

Take a look at the green flower spikes that they produce.

watermelon peperomia

Like I said...no one grows these plants for their flowers! Let's talk a little about how to care for Peperomia argyreia.

I'll mention some basic care tips for this plant, and later on will talk about what I consider the absolute most important factor in keeping this plant alive (and thriving) and also how to propagate it.

LIGHT

Watermelon peperomia definitely prefers bright conditions, but mostly indirect light. These plants can not take too much direct sun otherwise their vivid foliage coloration will wash out.

These plants are well suited to larger Northern exposure windows, and Eastern exposure windows as well where they would receive some morning sun. If all you have is a window with a lot of direct sun, you may want to diffuse the light a bit.

Just keep in mind that the higher light you have these in, the more quickly they will dry out, so you'll need to monitor that carefully. More on that in the watering section.

FERTILIZING

Watermelon peperomias are considered to be light feeders so avoid too much fertilizer otherwise your plant may lose its characteristic compactness.

I like to fertilize regularly, but very dilutely. This is the method I really use for all my houseplants.

My favorite fertilizer has become Dyna-Gro Grow. It is a complete fertilizer that contains all the necessary macro and micronutrients for plant growth and is urea-free. I've achieved fantastic results with this fertilizer.

Of course, I would like to mention that fertilizers are NO substitute for poor cultural conditions. You should provide fertilizer on top of proper light, watering, etc.

watermelon peperomia

Temperature

Watermelon peperomia are definitely freeze babies and they like to stay warm. These plants come from the tropical regions in northern South America. If at all possible, keep this plant above 60F (about 16C).

As a rule of thumb, for tropical houseplants, I like to tell people that if you are comfortable, then your houseplant is OK when it comes to temperature.

Always avoid any really cold drafts.

Watering

Now we are getting to some of the most critical care tips for Watermelon Peperomia.

These plants are very sensitive to extremes in soil moisture. I'll get to the best soil mixes to use for these plants later. For now, let's talk a bit about watering.

Try not and let this plant completely dry out. If you do, what you'll notice is that the lower leaves and petioles (the "stems" attached to the leaves) will droop.

Withhold water for even longer, and the entire plant will be droopy and start to collapse.

Ironically, the same thing will happen if they stay wet for too long. If these plants stay wet for too long, they are prone to rot.

So you'll want to find a happy medium and avoid "overwatering."

Simply wait until the surface of your soil is dry before giving it a thorough watering. Never let these plants sit in water. Always discard extra water that comes through the drainage hole of your pot.

If you notice that your plant is drooping, and also the leaves are turning yellow, you should immediately feel the soil.

Your soil has gone either completely dry or your soil is wet.

I haven't been the best all the time with watering all my plants since I have SO many and it's hard to keep up out of busyness or laziness...and for me, this has happened many times because I've allowed my soil to get bone dry.

So what I do is remove any leaves that are severely yellowed or very droopy, give it a good water and try not to let it happen again.

On the other hand, if your soil feels wet...then you have to determine why. Does your pot have a drainage hole? If not, repot it into one that does.

Did you let your plant sit in water in a saucer for a long time? Always, always discard excess water. And try not to let it happen again.

Potting Mix

I've been a stickler for potting mixes. You should put in a little more effort into choosing a good potting mix for your plants. Having your houseplants thrive depends on many factors.

You can't just have one thing right. You need to have multiple things right (watering, soil mix, light, etc) in order to truly have a thriving houseplant.

Potting mixes are one of the most important factors. I rarely will use a potting mix straight out of the bag anymore. Depending on what I have on hand, I will either add some perlite, orchid bark, or ¼" pumice to a prepackaged potting mix.

Why do I do this? Because drainage and oxygen to plant roots are vitally important! By introducing a larger particle size (from the perlite, bark, or pumice) to the potting mix, it will do 2 things for you.

First, it will improve the rate at which water drains. Secondly, there will be more oxygen available at the plant roots because you improved the soil structure.

So it will be less likely that you will "overwater" your plants. "Overwatering" kills your plants because waterlogged soil is depleted of oxygen.

I'll get to propagation soon, but I grew a beautiful Watermelon Peperomia in a soil blend to which added pumice. In my most recent project, I added orchid bark to a potting soil.

I strongly advise you to consider adding either perlite (I prefer the larger size perlite), orchid bark, or pumice to your potting mixes. Regardless of what you are planting! You will not regret it.

I have all 3 items on hand at all times because I like perlite in all my mixes. I grow plenty of orchids so I always have orchid bark, and I love using pumice for my succulents, so nothing will go to waste!

So don't underestimate the importance of a good potting mix! Going the extra effort of adding additional components to your prepackaged soil mixes will go a long way.

Watermelon Peperomia Propagation

These plants are very easy to propagate. There are two ways that you can propagate and I will show you photos of one way that I've done it.

You will need to choose a healthy leaf. Don't use a leaf that has yellowed or that is heavily damaged.

Simply cut a leaf off the plant (actually, you're going to be cutting the petiole which is the leaf "stem"). Then you can either propagate it in water or place it in soil.

I like to water propagate so I placed all my cuttings in vases:

watermelon peperomia

The time they take to root will vary, but mine rooted within about a couple months or so. The roots will form right where you cut the petiole, and the pups or small plants will follow shortly afterwards.

Take a look at this cutting that actually produce two sets of pups! You can see pups were produced further up on the petiole because the petiole was damaged. Talk about putting a positive spin on things...

watermelon peperomia

Once your cuttings have roots, or you can also wait until the pups start to grow, you can pot it up in soil.

watermelon peperomia

A few months later, here is the same pot (and this is also after neglected to water it a few times!)

watermelon peperomia propagation

Of course if you prefer soil propagation, you could have dipped the cutting in rooting hormone and placed it right into soil instead of water.

Another method to propagate Watermelon peperomia is to take leaf cuttings. You actually would cut the leaf horizontally in half and insert the leaf segments into the soil (with the cut side inserted in the soil).

This method is supposed to produce pups more quickly, but I haven't tried it myself.

One last tip, if you are propagating anything, always do multiple cuttings (if you can) because not every cutting will grow roots.

Lastly, check out my YouTube video where I show how I repotted and propagated my Watermelon Peperomias!

Want to grow other kinds of Peperomia? There are lots! I've also written about the gorgeous Peperomia Ruby Cascade and the rare Peperomia perciliata that I planted in a terrarium.

They're an amazing genus of plants for the houseplant enthusiast!

Share this post!

44 Comments

  1. Oh...and one more thing. Anytime, I try to water propagate the stems ALWAYS turn black & No luck with leaf propagation yet 🙁

    1. Try changing the water frequently and giving your propagations enough light. Keep your cuttings by a window where you would normally keep a regular plant. If you do these two things, it's pretty easy. And always do more than one leaf if you can since not all leaves will necessarily root, and only choose very healthy leaves for the best chances of success.

  2. Hello there! I see that this is an old post. However if you have any advice that would be great. I have had 4 watermelon pepperomias. About a month ago my daughter bought me a full one from Lowe’s. It was doing great. And then it started drooping and the new growth is turning black. I set it further back from the grow light so it has more diffused light. However I am very confused because I’m still having the same problem. I just can’t seem to get the watering right? Any help would be appreciated it.

    1. Hi Faith! If your plant is drooping, most of the time it's due to extremes in moisture. If your potting mix has gone completely dry, it will droop. If your plant got to that point there is a point of no return where the older foliage that drooped may not come back. On the other hand, if it's staying wet for too long and not drying out at all, you might still have the same issue. You'll need to determine which it is. The best thing I can recommend is to feel the surface of the potting mix and when it feels dry to the touch, go ahead and water. And don't use a moisture meter because they're all junk! Hope this helps.

  3. Hi there, thank you for your post, it's really helpful. I am trying to propagate in water but the stem has rotted and turned to sludge! What did I do wrong???

    1. Hi Sarah! Have you been changing your water? Did you use good, healthy leaves? Were they near a window and getting proper light?

    2. @Raffaele, how often do you recommend changing the water? Also, would you recommend a growlight for these propagations?

      1. Hi Ashley! I would say at least once a week, and if you notice any debris or cloudiness in the water, change it even more frequently. It's important to replace with fresh water and keep everything clean. You can use any good grow light. I have a few in my amazon shop that you can browse (https://www.amazon.com/shop/ohiotropics). I have a section with "LED Grow Lights." I use all 3 of those lights and love them.

  4. Hey there,

    Thanks so much for your website and this post! They are very helpful 🙂 I have a watermelon peperomia which was potted a while ago into a loose soil mix of coco coir, coco chips and perlite, but has recently started to drop leaves. I'm not sure if its because I have overwatered it (I usually stick my finger in the soil and wait until it has dried down to 30-50% of the pot), or if its just dropping leaves because I have moved recently and that may have stressed it. The peperomia is still producing new leaves and flowers however so I'm not sure if it is just purging some of the older leaves? Any advice you may be able to offer would be so appreciated!

    1. Hi Josh! How quickly does that potting mix dry out? Is it drying out very quickly? If that's the case, that might be your issue. I'm wondering if it's not retaining enough moisture, or maybe you're perhaps waiting too long to water again? Some degree of losing older leaves is normal, but if it's a lot, it's very likely a cultural issue and this plant is super sensitive to extreme dry and extreme wet conditions.

    2. @Raffaele thanks so much for your response! I’m my efforts to get to the bottom of the problem, I accidentally yanked the whole plant out of the pot, and found that what I thought was wet was actually very very dry ??‍♂️ I also found the pot it was in was way too big for the root ball so took the opportunity and reported it into a much smaller pot. It’s much happier now I think. While a few more leaves have fallen off there are lots of new ones sprouting!

  5. Hi Raffaele,

    I recently bought a watermelon pep and it’s producing new leaves which is awesome, however they are growing twisted and deformed and not looking like the original leaves that are normal. Do you know why my new leaves are twisting as they are growing? I’m watering about once a week and it’s sitting in a sunny position so I don’t think that’s the problem... any tips would be appreciated! Thanks!

    1. Hi Rosa, right before you water, are you judging how dry the soil is? Is it completely dry? It's probably soil moisture related. If they go really dry, it could be affecting the new leaves especially. How much direct sun is it getting?

  6. Hi!

    I'm a new plant parent and I've done all of my research on peperomias. I have a watermelon peperomia and a few leaves are drooping. The others are doing well although with blemishes (it was in bad shape when I bought it from the nursery).

    Right now it's in my bathroom because it gets a lot of afternoon sunlight. The window is about 9 feet up and big enough to light up the room. I did repot it about 5 days ago, with all purpose potting mix, orchid mix and pumice. I watered it after I repotted and the same drooped leaves perked back up. Now it's drooping again. I'm not sure if there's too much of the other mediums causing the soil to dry quicker?

  7. Hey!
    I just bought my first Peperomia and have watered it twice.. I dont think I am overwatering but the stems are coming off at the base.. I lost five this morning.. any suggestions?

    1. It's hard to say without knowing what your conditions are at home and what you're doing to care for the plant with respect to light, watering, etc. Have you been doing anything differently from what the blog post suggested?

  8. Hey, why do you put clay over the drainage holes when you're propagating, wouldn't this cause the newly formed roots to rot because there's no drainage? Great video ?

    1. The clay shard doesn't lay flat. It's curved on the inside so it stops the soil from going through the hole but it allows water through. :-).

  9. Hi Raffaele, I truly appreciate all of your expert plant knowledge. I have learned a lot from your blog. My Watermelon Peperomia is Putting out new growth but some of the leaves are deformed. I read this is a possible calcium deficiency? It’s in a terra cotta pot. I just started using the Dyna Gro fertilizer you use. Is there enough calcium in it to correct this issue?
    Thanks in advance for your response.
    Carol

    1. Hi Carol! I'm so glad that you are enjoying my blog :-). If it indeed is a calcium deficiency, that fertilizer will take care of it because it is a complete fertilizer! If you look on the label, it even has instructions on what to do for nutrient deficiencies if I remember correctly!

    2. @Raffaele, Thank you for responding back to me. Hopefully my Watermelon Peperomia is on it’s way to being a healthy plant!

      Regards,

      Carol

  10. These plants are beautiful and easy to take care of. I had luck with putting them near a lamp during the day - I have no sun in my room. I give a bit of water when they start to droop. I am not sure how long they can grow and what I should do about that because some stems are pretty long.

    I did not have luck with spider plants, supposedly they are supposed to be very easy but not with me! They turned yellow and brown and started dying.

    1. Hi Dobrinka! Do you have a window that you can place your plant right in front of? Even if it gets no sunshine, that would work!

  11. Hi Raffaele, thanks for this incredibly helpful post! I have a question for you - my watermelon pep. is looking sad and droopy, with several leaves feeling soft and tender to the touch (VS their usual firm/turgid self). It's in a pot with drainage holes and gets good indirect light from a west facing window so I don't think that's the issue. Watering might be though - I was afraid of overwatering it so tend to let it go more dry than I probably should. I last watered this 18 days ago (I keep my home warm, around 22ºC even during winter, if you're wondering about temperatures). The pot feels VERY light in weight so I suspect that's the problem? Just want to get confirmation before I treat it (thinking a good soak for about 45 mins in a bowl of water). Thanks in advance for your help!

    1. Hi Jane! Thank you for all the details ahead of time (you saved me some work 🙂 ), and yes it definitely sounds like your plant has been suffering from being too dry, hence the pot feeling really light. And based on your other conditions that you described, it sure sounds like it. Definitely give it a good soak now. I would just water it several times in a row until the soil actually has accepted the water. Sometimes when you let soil get too dry, it is hard to "re-wet." Do it several times in a row until the pot doesn't feel light anymore. Know that you may have lost those droopy outer leaves though. Don't be surprised if those leaves continue to look worse after you water them. They're just continuing their decline...If you just let the top inch or so of the soil dry out (use your finger), and then water, you have no reason to be scared of overwatering. This is not overwatering at all.
      On another note, "overwatering" is very misunderstood. I've included a link here to my overwatering/underwatering post. Please read it. It will help you! https://www.ohiotropics.com/2018/10/01/what-happens-when-you-overwater-a-plant/

    2. @Raffaele, that's great. Thanks for the info! When you say "water it several times in a row" I'm guessing you're referring to doing this in a single day, as opposed to watering it a few days in a row right (the latter sounds like a recipe for root rot). BTW, I gave it a good watering and the soft tender leaves have actually regained their firmness so looks like it wasn't too far gone. Will definitely monitor more closely but will really appreciate it if you could answer my question above for future reference too. Thanks again!

  12. Hi Ben, I have been studying your video in preparation to pot a leaf propagation and finally did that today. I am now starting another leaf to root to add to this new pot. Crossing my fingers!

    I noticed today that my mother plant recently developed in the last few days a brownish green cluster of freckles on one of its leaves. I did move it closer to my east facing windows to get more light to encourage more growth and not sure if that is the reason why the freckles appeared. Any thoughts? I can’t seem to find something that matches the description of my problem online.

    1. Hi Val! You may be referring to the freckles on the undersides of the leaves? I've actually seen that too on one of my plants. I'm unfortunately not sure what it is! If it's a disease or more of a result of cultural conditions that are not ideal. If you end up finding out, please share!

    2. @Raffaele, thanks for the reply. No it’s not on the underside. It’s actually starts on top of the leaf and looks like it eventually shows on both.

    1. Hi Diane. Yes absolutely! Just make sure the soil doesn't get overly dry or too wet. Did you see my terrarium post? :-).

  13. Thank you for the helpful information. Can you please reach how to take care of Pepperoni's as well? Mine has simple green leaves! Is the care same for different types of Peperomia?

  14. Hi Raffaele,

    Thanks for the tips, your watermelon peperomia are gorgeous! I have had pretty poor luck with the two watermelon peperomia received in the mail and am currently nursing three limp stalks/leaves on one plant I repotted (probably a mistake) and one limp propagated petiole. I didn’t know that the petioles can develop pups and potted it two days ago. It had developed decent roots - should I leave it in the potting mix and let it get stronger on it’s own (hopefully), or put it back in water until it develops pups? Also, the sad repotted plant hasn’t perked up since repotting a couple of weeks ago, should I leave it in the potting soil or would I perhaps fare better if I move it to water also, until it strengthens and develops pups and new roots? At this point I don’t think either plant is really going to strengthen in the potting mix and am willing to try re-propagating both. Thanks in advance for any advice you’re able to offer!

    1. Hi Wendy! It would help to see a photo of your plants. Depending on exactly how limp the petioles and leaves are, they may be past the point of no return. Email me some photos and I will give you my best advice! As far as the petioles with roots and no pups, you can plant them in soil now if you'd like. I waited until mine had some pups. You can do either though!

Leave a Reply

Your email address will not be published. Required fields are marked *