Rex Begonia
4.5 out of 5 (73 experiences)
About Rex Begonia
There are over 2,000 species of Begonia, and horticulturalists have created even more varities by cultivating all sorts of shapes and colors! They're native to tropical regions around the world, but are now found in homes in cold climates as well. Their taxonomy is far more complex than other plants, with species belonging to different cultivar groups. They contain oxalic acid, so be sure to keep them out of reach in homes with pets or children! ⚠️
Taxonomy
Begonia rex-cultorum
Begonia
Begoniaceae
Cucurbitales
Also known as
rex begonia fedor
How to care for Rex Begonia
How often to water your Rex Begonia
Rex Begonia needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
9
Finding light for Rex Begonia in your home
Rex Begonia may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.
Place it less than 3 feet from a south-facing window to maximize the potential for growth.
Select your region to see how the current weather in your area affects the placement of Rex Begonia in your home 🏡.
How to fertilize Rex Begonia
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Rex Begonia after it doubles in size or once a year—whichever comes first.
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Today is a sad day :( I got insanely sick for a few days and couldn’t even move so couldn’t do anything about my pest and fungus problem, and I came out yesterday to see Oli my begonia was INFESTED in spider mites, her leaves were disentergrating from the neem oil treatment, there was no saving her unfortunately :( so I did the hardest thing, many tears were shed. The first plant I’ve had to chop completely down to start again. 🥲 I also had to chop 3/4 leaves left on the cathelea, they are getting a repot out of the old soil and now going into isolation together in the greenhouse away from the other plants that have pests but can be saved! Please tell me I did the right thing? Because it feels so wrong right now 😭 #HappyPlants #PlantsMakePeopleHappy #PlantAddict #PlantTherapy #PetsAndPlants #PlantCorner #PestControl #OutdoorGrowing #PlantLove #PlantShelfie
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Propagation questions I’ve got several babies from a leaf propagation of Sonora that should probably be moved to a pot. Would it be all right to plant several in like a shallow 8-inch pot as long as I’m careful not to overwater? The tiny pots are impossible to keep moist so I would move those two babies in with their siblings. I guess what I’m asking is if I’ve got around six babies, will they do ok in a communal pot? #PropagationStation #Begonia #RexBegonia
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My plant is new to me and several leaves are now limp, what should I do? #Begonia
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#freshflowerfriday My "Ruby"❤️ with her lovely flowers opening up 😃 And my Boi "Sonny" opening up also 🌸 Happy Friday planty friends 💚 #plantsmakepeoplehappy
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#rexbegonia #floweringplants I've just been watering and checking my Ruby ❤️ and I've discovered these lil things which presume are the start of Flowers 😍 This makes me happy 🥳 yay 💗 #plantsmakepeoplehappy #ilovemyplant 🫶🏻💓
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#begonia Sharing my latest plant I got earlier #rexbegonia 🥰 FOR £2.50 I couldn't leave it there 😃 #plantsmakepeoplehappy
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Care Summary for Rex Begonia
Rex Begonia
Greg recommends:
0.5 cups every 9 days
< 3ft from a window
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
What other plant parents say
The coloring of this plant’s leaves is spectacular and really unique. I have the Red Splash variety of Rex Begonia and I love the jagged edges with their silver/gray stripes. This one has clung and flourished despite being in a forgotten planter outside until it was quite cold. It’s really a hardy, beautiful little plant!
The coloring of this plant’s leaves is spectacular and really unique. I have the Red Splash variety of Rex Begonia and I love the jagged edges with their silver/gray stripes. This one has clung and flourished despite being in a forgotten planter outside until it was quite cold. It’s really a hardy, beautiful little plant!
This is my 3rd begonia added to my collection, and while I previously thought they were dramatic and easy to kill, I’m finding my begonias are proving me wrong, this one too. Betty likes the bathroom windowsill, bright indirect light, water about once a week. I love the variegated leaves.
I bought this plant from Lidl when it was wilting and basically dead. The minute I took it home and put it in water is perked up! It’s the easiest plant to take care of because the leaves droop when it needs water, and once you water it, an hour later it perks back up!