Plant Care Large-Flowered Cactus

Large-Flowered Cactus

4.7 out of 5 (11 experiences)

Large-Flowered Cactus has a Fast grower plant personality Fast grower
Large-Flowered Cactus has a Survivor plant personality 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

💦 Water

How often to water your Large-Flowered Cactus

Water needs for Large-Flowered Cactus
0.5 cups
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.

Calculate water needs of Large-Flowered Cactus

Water 0.5 cups every
12

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Queen of the Night in your home

Light needs and placement for plant Large-Flowered Cactus: 1ft from a window
1ft or less from
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 🏡.

🪴 Nutrients

How to fertilize Large-Flowered Cactus

Nutrient, fertilizer, and repotting needs for Large-Flowered Cactus: repot after 2X growth

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.

Browse #QueenOfTheNight
💡 FAQs
💦 Water Needs

Large-Flowered Cactus thrives in dry soil and should be watered sparingly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.


☀️ Sunlight Needs

Large-Flowered Cactus requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.


🐶 🐈 👶 Toxicity

Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.

If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.


💨 Humidity

Large-Flowered Cactus enjoys lots of humidity. Provide humidity for your plant by watering regularly and thoroughly, since plants absorb most water through their root system rather than their leaves. They may also benefit from being placed next to a humidifier.


🪴 Soil

Large-Flowered Cactus is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!


💩 Fertilizer

Large-Flowered Cactus grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!


🌎 Native Region

Large-Flowered Cactus is native to Central, South America, and the Caribbean.


🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.


Care Summary for Large-Flowered Cactus

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

Large-Flowered Cactus has a Fast grower plant personality Fast grower 9
Large-Flowered Cactus has a Survivor plant personality Survivor 8
Large-Flowered Cactus has a Easy to propagate plant personality Easy to propagate 2
Large-Flowered Cactus has a Blooms easily plant personality Blooms easily 2
Candace avatar
@Candace
leaf-1 7 Plants
xp 297 XP
globe Largo, MD
11/10/2021

Simple and cute.

@SecretaryofSucculents avatar
@@SecretaryofSucculents
leaf-1 13 Plants
xp 321 XP
08/07/2021

It’s a very resilient plant that can handle being mistreated again & again. Once given the proper love, it can become quite huge. A lot of people dislike how long their arms get, I find them cute.

Fast grower Fast grower
Survivor Survivor
@sabrina.cheyenne avatar
@@sabrina.cheyenne
leaf-1 4 Plants
xp 312 XP
globe Sand Springs, OK
06/24/2021

He’s still a little small so every time he grows a new arm it starts to weigh him down so you have to check they’re upright. ❤️❤️

Fast grower Fast grower
Blooms easily Blooms easily
Survivor Survivor
@Yellowfellow avatar
@@Yellowfellow
leaf-1 9 Plants
xp 237 XP
05/17/2021

Honestly there’s not much to say about this one, easy to care for, water once a week maybe even less but don’t be fooled about his apprentice he may look cute and fluffy but he’s actually a pointy demon - you have been warned 🤝

Fast grower Fast grower
Survivor Survivor

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