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A Florist's Guide to Killing Houseplants

Updated on September 2, 2016
Kylyssa profile image

Kylyssa Shay worked as a florist for eighteen years and has created and taught an assortment of crafts to adults and children of all ages.

Learn to kill potted plants
Learn to kill potted plants | Source

Learn to Kill Beautiful Houseplants with Style

Killing houseplants seems to be a popular American pastime. At least that's my conclusion after working as a florist for most of my adult life. In the eighteen years I worked as a florist, I sent many, many beautiful plants to their certain deaths at the hands of happy homemakers and feng shui enthusiasts. Thank goodness they don't have central nervous systems; otherwise it would keep me awake at night. That is, plants don't have central nervous systems; feng shui enthusiasts and housewives certainly do.

Let me explain; far more people excel at killing houseplants than at keeping them alive. Most houseplant serial killers honestly believe they have a deep and abiding affection for growing things but they just don't think things through before they commit to 'til death do us part.


Water beading up on a green leaf
Water beading up on a green leaf | Source

Drowning

Plants love water. Yeah, plants love water. Heh heh, drink that you green leafy twerp! Uh, oh yeah. Over-watering is the most popular way to kill off houseplants. It produces rather dramatic results while deflecting blame from the perpetrator. "Oh, Bob? Bob wouldn't kill his fern; Bob loves his fern. He waters it every day." Meanwhile, Bob's fern slowly suffocates and falls victim to opportunistic fungi and bacteria while Bob fusses around looking innocent and worried. Unfortunately, drowning leaves a yellowed, stinky, and sometimes slimy plant corpse behind to be disposed of.

While all plants are good candidates for death by drowning, succulents and cacti produce the most disgusting and dramatic results.


Cracked, dried, sun-baked earth
Cracked, dried, sun-baked earth | Source

Thirst

Plants love water, remember? You can kill off your houseplants by withholding all water from your chlorophyllish friends. You might get caught depriving it of water but the saggy, leathery, slightly musty corpse it leaves behind is interesting to some avid plant killers.

All plants can be knocked off by dehydration but water-loving varieties like peace lilies provide the most dramatic wilt factor.


How NOT to Kill Your Houseplants: The Foolproof Guide to Lush, Healthy Plants

This book is a great guide to killing houseplants, you simply need to do the exact opposite of what the author advises. It may be incriminating if found in a household with too many dead and dying plants but then again, it might be evidence that their owner was trying to find out how to save the lives of his formerly green and no longer growing dependents.


How NOT to Kill Your Houseplants: The Foolproof Guide to Lush, Healthy Plants
How NOT to Kill Your Houseplants: The Foolproof Guide to Lush, Healthy Plants

An excellent guide to gaining your own green thumb. Or brown thumb. We won't tell anyone.

 
Potted plant with sad, dehydrated leaves
Potted plant with sad, dehydrated leaves | Source

Dryness

Dryness is a bit different from thirst. This is almost the perfect crime against plantkind because you can water your plant every day and still kill it with a nice, dry house. You can even combine drowning with dryness. Houseplants breathe through their leaves and exhale moisture. In very low humidity environments like your house in the winter, some of them can lose so much moisture through their leaves that it kills them.

Ferns make the very best candidates for death by dehydration. Ferns leave a very crisp and crunchy corpse. However, you can easily murder just about any variety with dry air by putting it directly under, above, or next to a heating vent in the winter.


Poisoning

Poisoning, by way of over-fertilizing, is a vastly underutilized method of killing houseplants but it achieves some of the most varied and mysterious looking end results. Leaves may yellow, go spotty, turn brown, get squishy, or even shrivel up. The best way to over-fertilize your houseplant to death is to completely ignore the directions on the fertilizer you've purchased or to use the wrong type of fertilizer.

A plant struggling desperately for life in a pot way too big for it
A plant struggling desperately for life in a pot way too big for it | Source

Re-Potting

Re-potting, I'm not sure why people do it so often. Maybe the last dead plant they threw away didn't make a big enough "thunk!" in the dumpster or maybe they just want to seem generous, I don't know. In any case, re-potting is a fine way to terminally dispose of most houseplants. Re-potting is another method which deflects blame from the planticide enthusiast. "Oh, goodness, look at the lovely pot! Only a plant lover would buy such a big lovely pot."

If you are looking to kill something by re-potting it, only choose plants that don't seem root-bound, use dense potting soil, and make sure the new pot has no drainage holes of any kind.


Freezing temperatures are an almost foolproof way to commit herbicide.
Freezing temperatures are an almost foolproof way to commit herbicide. | Source

Freezing

Freezing seems to be very popular among men. It takes just a bit of daring to freeze damage a plant and a bit more finesse to avoid getting caught in the act or during the post-mortem examination. However, it only takes a brief exposure to sub-freezing temperatures to get tragic results that can sometimes take days to develop, distancing the plant killer from the crime and providing him with an airtight alibi if the cause of death is never uncovered. Too long outside in sub-freezing temperatures and this herbicidal plan will provide swift and dramatic results that are nearly impossible to hide.

If you wish to kill houseplants this way, most of them can be harmed enough to result in death by just a few minutes in temperatures below freezing.


Red poinsettia nearing its final days
Red poinsettia nearing its final days | Source

Chilling

Sometimes, freezing is just overkill and some tropical plants die too quickly and dramatically when exposed to freezing temperatures. If it's too warm to naturally achieve below freezing temperatures you can choose a tropical species such as an orchid and expose it to temperatures below 50 degrees Fahrenheit for an hour or so. If it is summer or if your region never reaches below-freezing temperatures you can always stick your tropical plant in a refrigerator or cooler or place it in front of an air-conditioning vent. Chilling kills tropicals just as effectively as brief exposures to freezing temperatures kills other houseplants.

Poinsettias are one of the most popular decorative varieties to kill by chilling, however, this seems to be more often by negligent planticide rather than through deliberate means as many people think that poinsettias love the cold (despite their tropical origins) because they are traditionally used as Christmas flowers.


Plant sitting alone in the dark
Plant sitting alone in the dark | Source

Darkness

Did you know that green plants are photosynthetic life forms? Plants need light to survive. Darkness can be a very subtle and sneaky way to off a houseplant. Human beings don't usually realize how little light there actually is in what seems to them to be a brightly lit room. So you can appear to be fulfilling your photosynthetic charge's every need in a most conscientious way while engineering a long, drawn out death by light deprivation.

For the most subtle results, make sure it gets just a little less light than its care recommendations suggest and your plant will take months to die. If you are looking for a quicker death, make sure it gets far less light than its care recommendations suggest or even put it in total darkness. Interior offices provide ideal environments for this kind of herbicidal killing. Sun-loving plants such as cacti produce very saggy, squishy and smelly results when they are kept in darkness too long.


Sizzling hot sunlight
Sizzling hot sunlight | Source

Excessive Sunlight

Plants like light but some of them are sensitive to too much light. You can kill off plants with dark green leaves quite easily by placing them right in a window in bright sunlight. Varieties such as peace lilies often take quite a while to die this way and can earn you months of sympathy as you seem to heroically fight for your green dependent's life.

Enough sunlight can even kill off a cactus but you might want to leave that to the experts.



How Would You Do It?

If you were going to kill off a houseplant (and we're not saying you are but if you were...) which method would you choose?

See results

Inside the home or out, which methods of herbicide do you prefer? Share your favorites in the comments at the bottom.

What Is Your Favorite Way to Kill Plants?

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    • profile image

      Rich T Anderson 

      10 months ago

      I like to just make sure a plant is where Rupert can get at it. :)

    • Shades-of-truth profile image

      Emily Tack 

      3 years ago from USA

      While my husband is an incredible orchid grower, I am a houseplant killer. My method does not match any of the aforementioned options. There is "something" about me, that encourages the plants to self-destruct, as soon as they see my house.

      I declare - I can pull up in the driveway of my home, and see that most of the plants that were intended to thrive in my domicile, have already wilted while still in the car. They KNOW! Somehow, they found out, through the "dreaded-homes-to-live-in" hotline, that they will not make it inside my home.

      I would love to be able to keep them alive, but evidently they choose to commit "planticide", rather than suffer at my hands. I shall have to cease and desist, because I cannot bear to inter any more of them.

    • Chantelle Porter profile image

      Chantelle Porter 

      3 years ago from Chicago

      Hilarious. Nice job

    • Nadine May profile image

      Nadine May 

      3 years ago from Cape Town, Western Cape, South Africa

      My home is full of houseplants so is my patio and our deck, but I do know that I have lost house plants by over watering them by mistake. Today I use a water gauge which tells me if the plant needs water or not.

    • profile image

      Lynn Klobuchar 

      4 years ago

      I can grow almost anything outside but I am The Death Angel to houseplants. Foolish souls keep giving me more victims. You are so on to me......

    • profile image

      angelatvs 

      4 years ago

      Hysterical. I have killed so many over the years that I gave up trying to have them in my house!

    • GregoryMoore profile image

      Gregory Moore 

      6 years ago from Louisville, KY

      I personally don't kill them, that is my wife's expertise, and she is a champ at killing them. Usually due to forgetting to water them. I've been considering getting her a cactus or two.

    • profile image

      KarenCookieJar 

      6 years ago

      I'm actively involved in this pastime! I think I over water..

    • FlynntheCat1 profile image

      FlynntheCat1 

      6 years ago

      Oh this is fantastic. And yes, I write this with a dead African violet sitting behind me >.>

    • FanfrelucheHubs profile image

      Nathalie Roy 

      6 years ago from France (Canadian expat)

      Ok I am still laughing. I am pretty good with my plants except for a few that were given to me such as my anthurium who refuses to flower and keeps getting yellow and brown spots on its leaves. Oh and I cannot for the life of me keep a dieffenbachia alive. Believe me I tried. Many times. Otherwise I cannot label myself as a plant killer.

    • profile image

      BeyondRoses 

      6 years ago

      First, I find the most beautiful, perfect houseplant, and bring it home. Then I don't water it for a few days for fear of drowning it, then after a few days, I drown it. Then it appears soggy, so I put it out in the sunlight to dry it out, then since it has thirst, I drown it again. Mission accomplished! Now it looks kind of funky.

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