Are Epiphyllums Safe To Keep In A Greenhouse?

Epiphyllums are hardy plants that can survive temperatures as low as 30°F (-1.1°C) but require at least 60°F (15°C) during the growing season. They are best grown in a heated greenhouse or indoors, with pots placed in bright filtered light and moderate to high humidity. To increase humidity, position the pot on a tray filled with gravel.

There are two possibilities for keeping epiphyllums: 1) leaving them in a shed where they get some light but not direct sun, and 2) planting them in the ground. However, it is important to note that epiphyllums are plants that grow in trees, not the ground, and ground soil is too compact. If you keep your cactus indoors or in a greenhouse, ensure that the pot is placed on top of a tray filled with gravel.

Epiphyllums are typically epiphytes in their natural habitat, but they do not need to be grown as epiphytes in cultivation. They can thrive as unusual houseplants with proper care. Epiphyllums are tender and won’t survive temperatures below 10°C (50°F). They can be moved temporarily outdoors in summer into a warm, lightly shaded spot.

If kept in an ideal tropical environment with plenty of warmth and light throughout the year, these plants will happily grow and stay healthy but rarely flower. They prefer a bright position with indirect sunshine if possible, and they can be propagated easily by cuttings placed in sand. Seeds grow well only after several months of storage.

A good, well-insulated greenhouse in a location that receives adequate sunshine even in winter can keep many cactus species year-round.


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Can cactus grow in a greenhouse?

Abbey Brook Cactus Nursery advises that cacti and succulents can thrive in various settings, including homes, offices, or greenhouses, provided they are grown in a well-drained compost and a top dressing of sand or grit. Most species should be grown in as light a position as possible, with a sunny south or west-facing windowsill being the best option. Some species, like Cereus peruvianus and Aloe and Haworthia, can thrive at lower light levels, but Cereus peruvianus plants should be placed within 1m of TV/computer screens.

Can I overwinter succulents in a greenhouse?
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Can I overwinter succulents in a greenhouse?

Traditional greenhouses are walk-in buildings with internal heating, such as gas or electric heaters. Cold houses, on the other hand, do not have an internal heating system and are colder during winter months. They are best used in areas that don’t typically reach below freezing. Large-scale cold houses are not ideal for growing succulents all winter, but they can be excellent overwintering tools when combined with other techniques like straw surrounding.

The main advantage of cold houses is that they allow outdoor succulents to grow longer than without one, even when temperatures drop. The space receives enough sun heat, extending the growing season into late fall. As temperatures warm up, the succulents leave their dormant period early, allowing for propagation and repotting.

How do I encourage Epiphyllum to bloom?

To grow epiphyllum cacti, also known as orchid cacti, indoors by early autumn when night temperatures drop to 10°C. Keep plants at 11-14°C (52-57°F) over winter to stimulate flowering. These tropical succulent plants produce large, showy, fragrant flowers and make exotic houseplants with trailing, leaf-like stems. They thrive in warm, humid conditions and prefer cooler and drier conditions in winter. To grow new plants, follow the instructions on the plant’s instructions.

Can plants survive in unheated greenhouse?

While solar-powered greenhouse heaters can be an affordable option, it is important to note that not all gardeners require an additional temperature increase. In the majority of United States Department of Agriculture (USDA) Hardiness Zones, it is possible to cultivate crops throughout the year without the use of supplementary heat. To optimize the potential of your greenhouse, it is essential to gain insight into the necessity for supplementary heating, the most suitable species for cultivation, the characteristics of your specific zone, the requirements of different plants, the methods of protection, the timing of planting, and the maintenance procedures.

Where is the best place to put an orchid cactus?

In order to facilitate the growth of an orchid cactus in warmer climates, it is recommended that the plant be placed in indirect light during the summer months. It is recommended that a hanging basket be selected that allows the roots to fit snugly, thereby enabling the long stems to grow and ensuring root-bound blooming.

Can cactus grow indoors without sunlight?

Cacti, like all plants, require regular, daily light for their growth and survival. Some types may thrive with artificial lighting, so research is crucial before bringing one home. Cacti are popular houseplants due to their beauty and ease of care. However, their sunlight needs can vary depending on the type of cactus. It’s essential to research and understand the specific needs of each type of cactus to ensure they receive the necessary amount of sunlight for their growth and health.

Can you keep cactus in an unheated greenhouse?

Many cacti thrive in unheated greenhouses, with those that prefer warmer temperatures placed in a heated propagator set to 5°C. Anything needing warmer temperatures is placed on a windowsill. The author plans to test some plants in a coldframe this winter. They found that a decent cold spell is beneficial for many cacti, with gymnocalcium, astrophytum, acanthocalycium, denmoza, rebutia, and melocactus growing and flowing more strongly than identical plants kept at about 6°C in a polytunnel.

What temperature is too hot for cactus?

Succulents and cacti thrive in temperatures between 40-80°F, with minor sways being tolerable. However, sways of 5° or more can cause irreversible damage. Semi-extreme temperatures can act as stressors, influencing plants positively and causing more vibrant colors. In winter, it’s best to keep them above freezing to avoid frost damage. Some varieties are frost-tolerant and prefer cooler nighttime temperatures of 30-40°F, while more tropical varieties like euphorbia and lithops prefer minimum temperatures of 50-60°F. To determine the best temperature, search for “Ideal temperature for insert plant name here” on Google.

Does a greenhouse need to be in full sun?

A successful hobby greenhouse should receive at least six hours of winter sun exposure and be placed with the front or end facing east. The longer side should receive full southern exposure, while the longer side should receive afternoon shade in summer. Mounting the greenhouse on a base provides better stability and increases its lifespan. Regardless of the size or materials used, there are some non-negotiable features for a successful greenhouse, including proper ventilation, proper lighting, and proper ventilation. These features are essential for a successful greenhouse’s longevity and overall success.

Can succulents survive in a greenhouse?
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Can succulents survive in a greenhouse?

The author has a large collection of potted succulents, many of which are stored in a greenhouse, where they receive ample sunlight. They have a particular fondness for exotic forms of succulents, which make excellent container specimens. Succulents are easy to maintain and can survive prolonged drought due to their moisture storage in their stems, roots, and leaves. Some of the succulents can resemble smooth stones, rosettes, or green beads.

The author encourages those who enjoy growing plants but don’t have the time to care for them properly to consider growing succulents. They also recommend watching the newest episode on caring for succulents on The Roku Original “Martha Gardens” streaming free on The Roku Channel.

How often do you water succulents in a greenhouse?
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How often do you water succulents in a greenhouse?

It is recommended that water succulents only when the soil is completely dry, repeating this process between waterings. Furthermore, it is advised that watering is avoided if the soil is not crumbly or composed of dry dirt.


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Are Epiphyllums Safe To Keep In A Greenhouse?
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18 comments

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  • I was thinking of bringing mine inside so I am so thankful you mentioned they need a temperature change! So glad you mentioned they need fertilizer, I had read they don’t need it. You are so right about the sunlight, the leaves on mine started turning yellow and that was the cause. Great article. I would love to see a tour of your greenhouse and seeing what is growing.

  • I’m checking my epiphyllum as I listen to your You Tube. I saw a suspicious area and cut it off – and found a little green worm. I almost lost my epiphyllum after a few years to virus, insects & don’t know what, so I cut off all the bad spots and left all the good bits in a pot with cactus soil and after about 6 months, have lots of healthy looking growth. Still some virused areas as I mentioned, but at least the little green worm was stopped before it did much damage. Thanks for a great article.

  • Yeah mine has that. I haven’t cut the parts out. I’m considering getting rid of it because of how it looks and it doesn’t bloom very often. But when it does bloom it makes me excited. But the blooms only last a day. The plant has yet to die though. But it just doesn’t bring me joy. It’s got white / yellow flowers.

  • I’ve just found your website and I am absolutely amazed, you are growing all of these desert plants so well, which is shocking here in ireland, I’ve been looking to grow some cacti and succulents and am having relative success so far, I have lost a couple of cacti, but I have also taken several cuttings from an echeveria and they have all rooted and begun growing baby little plants which is very exciting for me. Anyway great job on all of those beautiful plants and best of luck in the future, you’re very talented.

  • Had a virus on my hookerie. Tried alcohol and it spread quickly down to the root and across the entire plant the following week and then went up another 2 segments in only 2 days so I cut it off to the clean area threw away the diseased part, threw away the soil too and am starting it over. It only had 3 segments of clean hookerie left. Hope it will grow.

  • Thank you for another great article! My favorite orchid cactus has developed this. Was fine but started with small black spots and seems to have gotten worse. Not positive it isn’t scales but I am thinking it’s getting to much humidity (from the humidifier) at night when the lights are off so I might have to adjust my timer.

  • Thanks for the information. I have a wheelbarrow full of epiphyllums they were damaged by hail and immediately started to die back. I cut them right back as far as possible and I think because it was drought here and we had water restrictions I was more aware and gave them heaps of water. They grew back like crazy and have flowered all through summer. I think apart from virus when the leaves get damaged some way they naturally do this dieback.

  • I’ve never speculated that it was a virus, more the plant reacting as plants do and have never noticed worms or detrimental effects from the crispy effect, I just use my finger and thumbnail and break that crispy off and there’s fresh flesh underneath, have never seen it bring a plant down, have been propagating these in water quite successfully lately. Do you see perfect ones that shows or nurseries that don’t have the specs or crisping?

  • Thank you for your articles. I live on Vancouver island where the climate is somewhat similar to Ireland, with little sun and cold rainy winters. I grow mainly cacti and succulents on my balcony and move them indoors in winter where they survive in a cool, east facing window. I started an epiphyllum from a very small cutting and it started to put out a very healthy leaf. I noticed some withering on its tip and thought I would trim it off . Now there is another healthy shoot, but the same thing is happening again. The rest of the plant is very healthy and little shoots are sprouting from the cutting. What could possibly be wrong?

  • Thanks for the article 🙂 my German Empress has something going on. I cannot find your “about section” that you mention that you can read about how to treat the virus? I am not sure my issue is same as your article. There’s lots of bumps inside literally all of the leaves and some brown spots to a lesser degree. We just had a severe heatwave 4 days of 40 degrees plus c and I am sure I overwatered. But unsure if it is something else. So keen to read more if you can point me in right direction to find it please? Thanks 🙂👍

  • Thank you for putting out this info Lyn, I’ve got this problem on my fishbone epiphyllum but I didn’t know what was causing it. I just thought my growing conditions were not quite to its liking. Now I can take some action, if I take some cuttings from the healthy leaves this year will they still get the problem?

  • Hi. I have childhood memories of my mum growing epiphyllum and cacti and I have continued her passion for many years. I have grown an epiphyllum from a cutting and it’s now a large, healthy plant except that recently it has developed what looks like a light brown mark on the lower stems, coming from the compost, running upwards. Could it be to do with hard water which we suffer from in the south east and if so is there an alternative?

  • I have this on my second hand Selenicereus chrysocardium and variegated dischidia. I always understood at it being caused by over watering after dry months which has lead to EDEMA/OEDEMA. Cold and sun damage could also cause those dry patches. I haven’t found any info about a potential virus though. :/

  • Hey, Lyn, have you ever considered trying to breed virus-resistant Epiphyllums? I don’t know much about their growth cycle or how long it takes for their seeds to grow and mature, but if they’re prone to viruses, it might just be a case of someone needing to take evolution into their hands for a bit. And if your plant is really really old, it might be a good place to start because it’s had years to build up immunities and transfer those immunities to its seeds. A few generations of breeding might make you a super Epiphyllum.

  • hello dear, recently I got some epiphyllum from ebay one of them start some brown spot right on the middle of the leaf.and it looks like drying but also spreading.now if it was on top of the leaf I would cut the brown part off but it started from 2 or 3 inch from the vase of the leaf.do you think you can give me any advice on it..if you want to see the plant I can make a article.

  • Thanks for this information Lyn. My epi’s seem to have similar markings. I have pruned them and taken out some of those leaves. I have been told it was scale but I have tried to erase it with no success! I am just assuming it maybe a virus. Glad to hear they are common. Some of my leaves are thin and don’t seem to have that nice rubbery feel to them. Is it over watering or under. Help would be appreciated. Thank you.

  • Lyn, how do I send you photos of a cactus with spots on it? I need to treat whatever it is right away. I just don’t know what to do or what it is for sure. I suspect that my fairy castle cactus may possibly have brown spot fungus? But I am not positive. And I trust your opinion as a grower of cactus for many, many years. Please let me know how to send you photos and description. Thank you, B

  • Hey! Been awhile! I have a question for you about a disease my dad’s Euphorbia Leuconeura caught that seriously spreads worse and faster than anything I’ve ever witnessed. He had me come over to help him treat it and we’re getting there but I can’t find out exactly what disease it is. He told me to wash my hands thoroughly after touching the plant so I didn’t spread it onto mine at home and stupidly I figured I’d be okay. Well now it’s on my Euphorbia Leuconeura’s and on many plants. It starts with brown and red spots on foliage and then the leaves die and yellow. I’ve been trying bonides plant fungicide fungal treatment over and over and as it seems to at least keep the plant alive it’s not a cure. Any ideas on what that disease could be?