Echinopsis subdenudata f. variegata
Accepted Scientific Name
Echinopsis subdenudata Cárdenas
Echinopsis subdenudata f. variegata is a small cactus, up to 3.2 inches (8 cm) and up to 3.2 inches (8 cm) tall, with a grey-green and yellow variegated stem. It is almost spineless or with very short, creamy-white or grayish-brown spines. The flowers are night-blooming, white, funnel-shaped, and up to 9 inches (22.5 cm) long.
USDA hardiness zones 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).
Photo via picdeer.co
How to Grow and Care
If you can grow cacti and succulents successfully, you can likely grow the Echinopsis species without too much trouble. Like many cacti, they prefer a drying period between waterings, even to the point where they slightly wilt. When you water, however, you should water deeply. The plant will noticeably plump up. The cactus mustn't be exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. Lastly, make sure to fertilize during the growing season for the best results.
Echinopsis can be easily rooted from offsets, which tend to cluster around the base of the mother plant. Cut offsets close to the stem, at the narrowest possible place. When rooting cacti from cuttings, let the fresh cutting dry out slightly on a paper towel and cut the cacti at the narrowest place possible. After a few days to a few weeks, depending on the size of the cut surface, the cut surface should have dried out and formed a callous, or slightly rough opening. Once the callous has formed, place the cutting in a rooting mixture of fast-draining cacti soil.
Learn more at How to Grow and Care for Echinopsis.
Echinopsis subdenudata f. variegata is variegated form of Echinopsis subdenudata.
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Taking Care Of Echinopsis Subdenudata ‘Dominoes’
If you’ve ever had a cactus, then you already know the ideal conditions for echinopsis subdenudata – these cacti like full sun, little water, and warm temperatures. In terms of temperatures, echinopsis subdenudata is capable of growing in temperatures from 20 to 50 degrees Fahrenheit (-6.7 to 10 degrees Celsius).
Watering echinopsis subdenudata is easy – you just need to make sure to water the soil once it gets dry to the touch. Don’t overwater the plant or let the water sit at root level – this will likely lead to root rot.
In winter, it’s generally recommended to keep the plant drier to prevent root rot. It’s much easier to overwater the plant in winter than in summer.
Where to plant
In temperate climates, you may plant echinopsis subdenudata outside, but you will need to move the cactus inside once the cold season comes. This cactus isn’t too frost-hardy, so it shouldn’t be left outdoors.
If the temperatures in your area are on the warmer end all year round, then keeping echinopsis subdenudata outdoors is the best option. You may, of course, keep this cactus inside, but since it requires full sun, it’s more difficult to do.
If you are planning to plant the cactus outdoors, then do so from early spring to late spring. If indoors, then you may plant echinopsis subdenudata up until winter because it won’t be exposed to autumn rains and cold.
If keeping echinopsis subdenudata inside, then do make sure to place the pot near a window that receives sunlight all day long. On hot days, place a shade over the cactus to reduce the amount of heat and prevent sunburns.
The soil choice is the same as with many other cacti – light and free-draining soil is optimal for echinopsis subdenudata. Free-draining soil is much less likely to cause waterlogging and root rot since it will easily let water out.
General care information
Other than what we’ve explained above, you’ll also need to think about repotting the plant and fertilizing it.
Fertilize the soil during the growing season, which is pretty much any season except for winter when the cactus is dormant. Use a high-phosphorus “bloom booster” fertilizer. Water the soil with water containing fertilizer once a week.
Make sure to rinse the cactus body with clean water to ensure that no fertilizer remains on it. Otherwise, you will expose the cactus to an increased risk of sunburn.
As for repotting, you will need to do it in two cases:
- When your plant outgrows the old pot.
- When you need to move the plant from outdoors to indoors during cold seasons. If it’s perpetually warm in your area, then you don’t need to think about repotting.
Repotting is done every spring, though you may also do it every second or third year. Repotting once a year is preferable since it allows you to check the plant’s roots and boost the cactus’ growth.
Echinopsis subdenudata light, location and temperature
Like most cacti, Echinopsis subdenudata grows in areas that naturally receive a lot of sun. This means they will appreciate similar conditions in the home, so during Summer try to find the sunniest possible spot for this cactus. The sunnier the better.
It can be tempting to place cacti in a dark spot to cheer up your home a little, but that won’t work for this plant.
During Summer, Echinopsis subdenudata will love a super sunny location like a South-facing window. High temperatures are not much of a problem during this time. During Wintertime, however, things are a little different.
Echinopsis subdenudata can handle both high and low temperatures quite well and is not fussy at all. As low as 50 °F/10 °C is not a problem and it should be able to handle even lower temperatures as long as the soil is kept completely dry.
This cactus likes to go dormant during the Winter months and should ideally be moved to a colder area during this time. If possible, move your Echinopsis subdenudata to a colder (but not freezing) location such as a garage from late Autumn to Spring.
Echinopsis subdenudata Care Guide
When choosing soil type, Echinopsis subdenudata needs good drainage. As all cacti plant species deteriorate when their roots remain wet or moist due to improper soil drainage, the same applies to this lily cactus.
Not only should you go for well-drained soil, you should ensure that the soil is also light and gives for sufficient aeration.
You can create your own soil mixture by using potting soil and some grainy materials to give the overall soil some grit. Some materials to give the soil a grainy texture include perlite, sand, and pumice.
An ideal mix would be 40% potting soil, 40% perlite and 20% sand.
Echinopsis subdenudata does well under partial to full sunlight. If you think about it, they do originate from a place that gives off strong, natural light from the sun’s rays. Therefore, try to find an ambience that can provide the same homey lighting for these plants.
Depending on the region in which you live, place these plants in the sunniest spot you can find in the summer growing months. In the winter months, still ensure that proper light is given to them.
These little pots of joy need their happy vitamins just as much as we need these plants to give us our daily dose of happiness and enchantment!
As part of the cacti family, you may think that echinopsis subdenudata would need little watering to thrive as most cacti would essentially require. However, this bulbous, dainty plant enjoys regular watering during its growing season.
During the summertime, water once a week, or once every other week. To determine this, wait until the soil is fully dry before its next watering.
During the wintertime, minimal watering is required – once a month. Echinopsis subdenudata normally stops growing in the colder months hence, very little watering is needed.
Because echinopsis subdenudata comes from a varied climate of humid, tropical to cooler, semi-arid, you would want to mirror similar conditions as best you can at home. Nonetheless, because they can handle such varied climates, they make easy, no-fuss plants at home.
Temperatures can go as low as 50 degrees Fahrenheit (10 degrees Celsius). This cactus species can take even lower temperatures, but dependent on the fact that the soil must remain completely dry.
In the winter months, since they go into hibernation, it is best to move them into a colder spot at home. Cooler, but not freezing.
Relatively speaking, homes are 20% to 60% humid. Because echinopsis subdenudata can withstand humid conditions, adjusting your home conditions for these plants may not be necessary.
However, stay cautious. As these plants hail from the cacti family, their thick, sturdy physique are able to store enough water to keep it persisting.
Additionally, too much moisture can cause the stems and roots to wither away. Therefore, an ideal humidity level would be at roughly 30%.
During its growing season, Echinopsis subdenudata would need a bit of fertilizer to sustain.
Some people may warrant that you need more phosphorus than potassium when scouting for a fertilizer, but essentially, having equal parts of nutrients will do just fine. During the winter months, feeding isn’t necessary, unless you notice nutrient deficient-caused roots and stems.
In the growing summer months, this plant species will need feeding about every fourth to eighth week. You may use liquid fertilizer, or a standard fertilizer, to feed this cactus.
As always, use your judgment, under-feeding them would be safer than over-feeding them if you cannot tell how much is enough. Keep in mind though that when you first pot or repot this plant, it doesn’t require consumption in the first year.
For your general knowledge, fertilizers contain nutrients like nitrogen, phosphorus and potassium. When purchasing fertilizers, you may notice a three digit number ‘#-#-#.’ This shows how many pounds of nitrogen, phosphorus and potassium there are in the mix, respectively.
To propagate echinopsis subdenudata, you can do so in two ways. Many people grow these plants in greenhouses, or in conditions that are not native to this species.
One way to propagate this kind of cactus is to use seeds and plant them in the soil mixture. Properly mix them well in the soil and place a cover over the pot to ensure moisture.
This process takes about twelve months and it would be best done from early to late spring.
Another way to propagate them is by using offsets, or stem cuttings, to plant them. The cutting made should be left to completely dry for a few days before a callous would form.
Thus, the callous can then be placed in the potted soil mixture for propagation. This way can be done from early spring to late summer. Propagation of Echinopsis subdenudata is explained further in detail below.
Echinopsis subdenudata grow perfectly well in the summer time. The cactus part can grow as big as 30cm with about eight to twelve ribs.
The white, fragrant flower that grows atop the cactus can be as tall as 22cm. Growth is consistently steady within the summer months of its growing season.
Do keep in mind that because these plant species are native to the southern Hemisphere, seasons are reversed.
The summer months in which they grow could actually be your winter months if you are located in the northern hemisphere and you hope to be a caregiver to these precious gems.
You can check out the bloom calendar of these plants here .
When potting Echinopsis subdenudata, go for pots that have holes at the bottom to ensure well-drainage and sufficient aeration.
There are plenty of options to choose from as most plants need proper water and soil drainage. Such pots can also allow water to evaporate through their porous materials. You don’t need a big pot for these cacti plant species.
How not to kill your Echinopsis subdenudata