Large-Flowered Cactus
4.7 out of 5 (11 experiences)
Fast grower
Survivor
Also known as
Queen of the Night, Queen of the Night, Moonlight cactus, Queen of night, Large-flowered cactus, Sweet-scented cactus and Vanilla cactus
Taxonomy
Selenicereus grandiflorus
Selenicereus
Cactaceae
Caryophyllales
How to care for Large-Flowered Cactus
How often to water your Large-Flowered Cactus
every 12
Large-Flowered Cactus needs 0.5 cups of water every 12 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
12
Finding light for Queen of the Night in your home
a window
Large-Flowered Cactus love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Large-Flowered Cactus does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Large-Flowered Cactus in your home 🏡.
How to fertilize Large-Flowered Cactus
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 Large-Flowered Cactus after it doubles in size or once a year—whichever comes first.
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Will a light therapy lamp work on plants #happyplants #QueenOfTheNight
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Is this a good soil choice for my Queen of the Night? #QueenOfTheNight
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This poor plant looks scraggly. Has looked like this since a friend gave it to me 4 years ago. She was hoping I'd have better luck making it healthy. It is hanging on but not improving. What can I do to liven it up? #QueenOfTheNight
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Hello my fellow plant lovers! Should I be trimming this back? It’s growing like crazy in an east window with shade, in my bathrrom. Crazy little plant. TIA.
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Stupid little hungry little caterpillar 🐛... I will destroy you
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hey guys, my bubba is very floppy and it looks like it’s about to die. What should I do? Please help. It’s not looking good.  #Cactus #Cacti
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What kind of fertilizer does any one recommend for my moonlight cactus shown here? #QueenOfTheNight
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Can I fertilize my Moon Light Cactus using an orchid fertilizer manufactured by miracle grow? Also what fertilizer can be used for Jade plants ? #QueenOfTheNight
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I'm so happy, I stopped watering Hydra and now he is doing so good
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I have these small black bugs on the plant that I think are killing it. Thoughts on how to deal with this? #QueenOfTheNight
Care Summary for Large-Flowered Cactus
Large-Flowered Cactus
Greg recommends:
Water
0.5 cups every 12 days
Placement
< 1ft from a window
Nutrients
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
Fast grower 9
Survivor 8
Easy to propagate 2
Blooms easily 2