Just like us, youâre probably always on the lookout for variegated houseplants. Most of them are quite common and easy to get by, but there are some rare variegated plants that look like they came out straight from a fairytale. For example, Variegated Cotyledon Orbiculata, Philodendron Pink Princess, and Variegated Echeveria Lola. The list goes on, but we’ll go broke if we start thinking about all of them.
And if youâre curious about how variegation appears in plants or what causes its loss (reverse variegation), youâve come to the right page, as weâve covered everything you need to know about it!
Table of Contents
How does variegation appear in plants?
Variegation in plants usually appears due to a cell mutation. This means that some of the plant cells contain less chlorophyll. And since chlorophyll plays a huge role in the process of photosynthesis, strongly variegated plants come at a disadvantage, reason why their growth rate is slower.
In nature, variegated plants usually die out faster, as they need chlorophyll to survive. So if youâre wondering why your houseplants canât maintain their albino leaves for a longer period, thatâs because the leaves have an insignificant amount of chlorophyll and they donât actually produce enough energy for the plant, but instead require it to thrive. Think of it as removing the weakest link. Nature, canât help it.
Types of variegation in plants
There are different types of variegation in plants. Some of them appear spontaneously (chimeric) or are coded in the plantâs DNA (genetic), while others are caused by the appearance of air pockets (blisters) between the epidermis and the pigmented layer of the leaf or even by viral infections (viral).
» Chimeric Variegation
Chimeric variegation is a random mutation and it means that the plant contains two genetically different tissues. Some of these tissues will produce chlorophyll, while the rest wonât. As a result, youâll get a plant with green leaves that also have white and yellow-colored zones.Â
Most variegated plants are a result of chimera variegation. This type of variegation can appear as symmetrical and consistent or randomly spread throughout the plant. Itâs a relatively stable mutation, but there are cases in which the plant will revert to its green state (reverse variegation).
When it comes to propagation, the easiest method to get a true-to-form new plant is by using stem cuttings. However, if you try to propagate them by seeds, leaf cuttings, or root cuttings, you wonât get a true-to-form plant.
Examples of chimera plants that you probably know about (and if you donât, youâll fall in love with them): Variegated Monstera Deliciosa, Philodendron Birkin, Marble Queen Pothos, and Devilâs Ivy.Â
» Natural Variegation
Some plants are genetically programmed to produce variegated leaves. In this case, the variegation is permanent and you can obtain a true-to-form plant even from seeds.
Examples of natural variegated plants: Calathea Varieties, Snake Plant Varieties, Pink Rubber Tree, Stromanth Varieties, Ctenanthe Varieties.
» Blister or Reflective Variegation
This kind of variegation occurs when pockets of air (blisters) form between the upper layer (epidermis) and the pigmented layer of the leaf. Light that hits the transparent air pockets is reflected, making them appear silver.
Since these blisters are programmed into the plantâs DNA, you will get a true-to-form new plant even if you try to propagate it by seeds.
Examples of plants with reflective variegation: Angel Wing Begonia, Philodendron Brandi, Scindapsus Pictus, Watermelon Peperomia.
» Viral Variegation
As the name suggests, viral variegation is caused by viral infections like the mosaic viruses, hosta virus X (HVX), and citrus variegation virus (CVV). This type of variegation is less frequent, and despite being infected with a virus, these plants can grow and thrive for many years.
If youâre interested in learning more about this type of variation, make sure to check this out: Viruses that Enhance the Aesthetics of Some Ornamental Plants: Beauty or Beast?
What is reverse variegation and what causes it?
Reverse variegation refers to the loss of white or yellow markings in houseplants, which makes the plantâs leaves turn completely green.
Loss of variegation appears in chimeric plants since their variegation is unstable, and can be triggered by multiple factors like changes in temperature, low levels of light, or another cell mutation.
Itâs also considered to be a survival mechanism since variegated plants are less vigorous than their completely green relatives, so their leaves are turning green in order to produce more energy.
Sadly, reverse variegation can not be reversed again, so once your plantâs leaves start turning green itâs better to cut then off back to where variegation is, as the plain green can take over the entire plant (unless, of course, you want it green).
Conclusion
Variegated houseplants are, indeed, lovely, but some of them are hard to come by and also quite unstable. So, before getting yourself an expensive chimera plant, keep in mind that the variegation might not be permanent.
1 Comment
Carrie Johns
February 25, 2022 at 10:58 pmGreat article!! Very concise, an easy read full of interesting and on target information. I keep a folder of good information from printed and hard copy garden tips I come by this is definitely a keeper.
Thank you for providing such knowable information without stringing me along. I ran across your article by sheer luck. I hope I can find a link to follow you. Thanks again!!!