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Haworthia Cooperi – A Complete Care Guide

Haworthia Cooperi – A Complete Care Guide

Haworthia Cooperi is a somewhat rare variety of succulent that any collector desires to own. This species is quite unlike the typical Haworthia varieties that mostly look like mini aloes with rough-edged leaves. Instead, Haworthia Cooperi has a rosette formation with surreal bulbous leaves. 

The plant looks like it’s made of translucent bluish-green tinted marbles. This glass-like surface is a critical survival adaptation of the plant, by the way, and we’ll come to that in a bit.

They are small, easy to grow, and very decorative making for excellent mantlepiece plants. People often grow Haworthia Cooperi in small ceramic containers that they can freely port around the room. 

According to the University of California, the genus of Haworthia has about 70 species native to South Africa. Compared to other succulent genii, they can grow literally under any light condition.

As long as they’re kept indoors they can be grown anywhere in the world. That’s why they’re so popular with home growers.

They do have flowers that shoot up on long erect stacks and are quite unremarkable. Haworthia Cooperi is nontoxic in nature and is pest-free normally.

 

 

Haworthia Cooperi Detailed Care Instructions

Haworthia Cooperi is best suited for a temperature around 68 – 72°F (20 – 22°C). Being succulent they can tolerate prolonged dryness but prefer a decent watering cycle to look healthy. They belong to a genus of plants that are uniquely shade loving. They do well in well-draining soil. Also, they don’t like frequent repotting because of their delicate leaves. 

 

Soil

Haworthia Cooperi care needs sandy soil that has excellent drainage. The easiest way is to buy potting mix for cacti to grow Haworthia Cooperi. In care you don’t find it gritty enough add more perlite or pumice to this mix.

However, it is easy enough to make your own suitable soil for Haworthia Cooperi care. Just combine potting soil, coarse sand, and perlite in equal parts. This is the sort of mix with won’t hold water for more than a split second, so perfect for our plant.

Apart from perlite, which is perfect for soil drainage, you can mix in activated charcoal chunks, fine aquarium gravel, or shredded bark. These soil amendments prevent too much moisture from staying in the soil.

Personally, I try to minimize the use of fine sand and use more other ingredients to get porosity. This is because fine sand can sometimes steal all the air pockets around the roots.

 

Light

This succulent is sun shy. For best results, you should grow Haworthia Cooperi in bright light, but never direct or full sun. Observe the bulbous leaves carefully.

At the top of each leaf, there’s a green translucent window. It is through this “glass window” at the top of the leaf that light enters for photosynthesis. The window is a common feature in many succulents. 

In its native habitat, the Haworthia Cooperi mostly grows underground hidden and protected from the sun. Only the glass tops of the leaves protrude above the soil. We have to roughly mimic these conditions in our homes.

When you grow Haworthia Cooperi, you won’t need to bury all of the plant as long as you keep it in a shaded spot. 

In my home, it sits on a bookshelf 3 feet (90cm) away from the east window where it receives slant rays in the early mornings and indirect light the rest of the day. This is its permanent spot and I am able to enjoy watching the plant grow all year long.

If the light level is too low Haworthia Cooperi loses color from the leaves.

 

Watering

As you would expect from a succulent type, Haworthia Cooperi is not a heavy drinker. They can survive drought if they are kept away from the sun. So if you are someone who travels a lot, you should definitely grow Haworthia Cooperi.

That said, a consistent watering routine is always welcome. The Haworthia Cooperi care requirements differ a little bit depending on whether you grow them outdoors in succulent containers, or indoors in an individual planter.

If the soil is right and the planter has good drainage holes, you can water regularly whenever the soil dries out completely. That’s about once a week in the summer months.

If grown indoors, You have to be a little more watchful of overwatering. The watering cycle for homegrown plants is about 7 to 10 days.

Remember, when in doubt, don’t water. Underwatering is always better than overwatering when it comes to Haworthia Cooperi care. 

In winters, you should dramatically cut back watering Haworthia Cooperi. About once a month is normally sufficient. Just make sure the water is lukewarm.

 

Temperature

Haworthia Cooperi is originally from South African regions adapted for warm temperatures all year round. If you live in equatorial or subtropical zones you can grow them outdoors. They can tolerate anywhere between cool to hot.

Indoors works best for Haworthia Cooperi care because they love the consistency that ambient room temperatures can provide. The ideal range would be 68 – 72°F (20 – 22°C) and can take up to 90°F (32°C)

Ideally, the plant shouldn’t be subjected to temperatures lower than 40°F (4°C). Frost damages the plant.

 

Humidity

Haworthia Cooperi care has literally no humidity conditions or concerns. It can take any ambient humidity conditions as long as the moisture around the roots is managed well.

However, good air circulation is welcome so that the soil evaporates faster and the plant stays protected from root rot problems.

 

Fertilizer

Fertilization isn’t an essential part of Haworthia Cooperi care because these plants are indeed low feeders.

If your plant is mature then you can give it a balanced succulent feed after drastically thinning down the concentration. My personal choice is to mix in any slow-release organic manure in the soil while potting it. In my experience that is all it needs.

Chemicals are tricky because over-fertilization can kill these plants.

 

Propagation

Haworthia Cooperi plants are super easy to propagate. They take root from stem cuttings or fallen leaves. You can even harvest offsets that spring up abundantly at the base of the plant. The plant propagates reliably with a high success rate.

 

Growth

If you expect Haworthia Cooperi to grow into a sizable plant very quickly, you’re in for a disappointment.

It is a slow-growing succulent producing little clumps or rosettes of fleshy, tiny green leaves. Each rosette reaches about 2 to 4 inches (5 – 10 cm) in spread and about the same in height. But the clumps put out several pups that grow alongside the mother plant and give the plant a little more size.

The rosette formation is because the stem of this plant is very short. The leaves of Haworthia Cooperi are variegated and that is a big part of its charm.

 

Potting

My favorite potting solution for Haworthia Cooperi care is terracotta pots. Terracotta pots breathe. They are excellent for managing soil moisture and better than ceramic or plastic pots as far as succulents are concerned. 

Choose a small size container. My rule of thumb for the ideal pot size to grow Haworthia Cooperi is an inch wider in diameter than the plant.

Let the plant grow in this pot until the rosette touches the edges. Then you can repot into a container using the same rule, i.e. an inch larger than the plant.

There are ceramic pots that are so shallow, they look like soap dishes. Although people recommend using shallow pots for succulents I am not such a fan of them. The ideal depth to grow Haworthia Cooperi is a pot that is a little taller than the plant height.

Haworthia Cooperi care tip: Before you pot the plant, make sure to line the base of the pot with gravel or brick bits. This will help in avoiding damage to the plant at the time of repotting.

 

Haworthia Cooperi Step By Step Guide to Propagation 

You can easily grow Haworthia Cooperi from a leaf or stem cuttings. Haworthia Cooperi propagation can be carried out in soil or water but I’ve had better success in soil. The cuttings are prone to rot in water. Spring to summer is the best time to propagate Haworthia Cooperi.

 

Leaf propagation in soil

Cut a few healthy leaves from the soil end of a bug-free mother plant, taking care to cut under the node.

Let is lie on a surface for half a day to a day until a callus is formed on the cut. This is an important step in Haworthia Cooperi propagation to minimize the chances of rotting.

Pop the leaves 2 inches apart from each other in a sterile moist soil mix. A potting soil like a mix of succulent soil, peat moss, and perlite, is simple and reliable for rooting.

Don’t press down the soil around the stalk. Let the cut end simply just contact with the moist soil.

The soil moisture should be maintained but shouldn’t be wet because your leaf will definitely rot away. Water in the morning with a handheld spraying can or a misting can once every two days and keep the tray in a shaded spot.

Don’t cover the tray with plastic or the leaves will catch mold. Don’t disturb the cuttings until established.

New plants will grow from the leaf base in about six to eight weeks. After they have about two leaves each, transplant them carefully into individual pots.

 

Water propagation

Water propagation of Haworthia Cooperi is more or less the same except that you put the leaves in water instead of soil. I prefer a slight variation to this.

Place a thick wad of sterile cotton wool inside the cleaned lid of a jam jar. Pour water until the cotton wool is soaking wet.

Stick the callused stalks of your Haworthia Cooperi in the cotton wool while the leaf rests along the edge of the lid. Keep the cotton wool moist but leave the set up undisturbed for a few weeks until you see translucent roots.

After the root structures are strong enough to transfer them to individual pots.

 

Offset separation

This is a natural Haworthia Cooperi propagation method. As the plant matures it starts throwing multiple offsets or pups around its base. I normally leave them on the mother plant and let them grow together until it’s time to repot the plant. 

At the time of repotting I separate the pups carefully from the mother plant. These offsets are typically joined at them. You just have to cut that joint with a sharp sterile knife. The leaves may fall off if you’re not careful. 

I make sure I get a few roots along with the offset to help the new plant establish itself quickly.

 

Potting best practices to grow Haworthia Cooperi baby plants

The pots can be 2.5 inch (6 cm) size and it will serve the plant for 6 months. Don’t forget to put a layer of gravel at the bottom to make repotting easier.

Once they’re in their individual pots, young plants need regular watering until they’re about 6 months to 1 year old. Make sure the potting mix is a combination of succulent soil, peat, and perlite in equal parts to ensure moisture.

You can cut back on watering once the plant has grown.

 

Common Problems With Haworthia Cooperi

Haworthia Cooperi is by and large a hardy succulent and isn’t prone to pests or diseases as such. However, there are a few things you need to bear in mind. 

 

Root rot

If the plant is dislodged at the base then that’s due to root rot. Fungal diseases are the most common cause of root rot when you grow Haworthia Cooperi.

It occurs when roots sit in soggy soil particularly in conditions of low light and poor ventilation. You can try to salvage a few leaves and carry out leaf propagation. Readjust watering and light conditions.

 

Mealybugs

Sometimes all of a sudden the leaves fall off the stem and reveal white fuzzy little pests hiding at the nodes. This can be a frustrating menace to solve if the pest attack is not detected early.

If you spot one or two, just touch the bug with an earbud dipped in alcohol. Spray insecticidal soap and neem oil solution every 15 days. 

If it’s a heavy infestation then you’ll need to carefully wash off the plant until all the bugs are gone. But this may damage the plant severely.

 

Fungus gnats

These occur in the top one inch of the soil if moisture is not managed optimally. Be sure to let the soil dry out completely before watering.

 

Tips to Keeps Haworthia Cooperi Problem-free

The single most important aspect of Haworthia Cooperi care is ensuring the right amount of water because root rot is the most common reason for death. Here are a few handy tips to keep it problem-free:

  • Minimum watering and medium lighting
  • Young plants need more watering than older plants
  • Don’t repot too frequently for that can damage the plant
  • Haworthia Cooperi care does not involve any particular humidity management
  • Good air circulation is a must to dry out moisture
  • The optimum temperature to grow Haworthia Cooperi is room temperature
  • Don’t expose it to cold drafts or direct sun and outwinter the plant indoors
  • Grow Haworthia Cooperi in terracotta pots
  • Keep checking for pests and bugs proactively. Pests multiply really fast on Haworthia Cooperi plants due to their succulent nature
  • The application of preventive insecticidal soap once a fortnight isn’t a bad idea

 

Frequently Asked Questions about Haworthia Cooperi

 

Why is my Haworthia Cooperi turning brown?

This could be due to exposure to direct sunlight which makes the leaves of Haworthia Cooperi change color. Move to a bright shaded spot and the damage will reverse at least partly.

 

Can I grow Haworthia Cooperi in a somewhat dark spot?

Well, no. All plants need light to produce food and that goes for Haworthia Cooperi too. It definitely prefers shade over direct sun. But darkness is different from bright shade. In prolonged darkness, the plant will slowly fade and eventually even die.

 

Conclusion

I’ve always maintained that there are two kinds of gardeners, the ones that love succulents and cacti and ones that don’t.

If you are the former kind, then Haworthia Cooperi is an exotic succulent that you definitely want to own. We have some more great cacti recommendations for your home.

They even make great a choice for multi-plant container gardens where you can mix and match a few different varieties of succulents and make living works of art.

Happy Gardening!

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