Are you looking for something unique that will make your neighbors envious? Introducing the silver torch cactus, also known as Cleistocactus strausii, a vibrant member of the Cleistocactus genus. The name is derived from the Greek word "kleistos," which means "closed," referring to the fact that the plant's red or burgundy tubular flowers rarely open.
With its wooly white appearance, thanks to its fine needles and bristles covering its stem, it's like having a fluffy cloud in your home! And the best part? It's super easy to care for!
This stunning columnar cactus is sure to stand out in any garden with a width of about 6 feet and has long, thin cylindrical stems that can extend up to 10 feet, adding a touch of exotic beauty to your outdoor oasis.
But what's even better than its striking appearance? This is an incredibly low-maintenance plant hailing from high mountain regions in Bolivia and Argentina. You can easily propagate silver torch cactus by stem cuttings, requiring very little attention from you. Whether you're an experienced gardener or just starting out, this plant is perfect for anyone who wants a gorgeous addition to their collection without all the fuss.
Watering Needs
Despite being a drought-tolerant plant, silver torch cacti prefer moderate watering during the growing season in the spring and summer months. To encourage healthy root development, water the plant deeply but sparingly.
When these desert cacti go dormant in the winter, water it less, soaking it completely, then letting the soil completely dry out. In spite of the right watering frequency, cactus roots can be damaged if the soil is not fast draining.
Light Requirements
The silver torch cactus thrives in direct sunlight. Even though it can handle some partial shade, it won't bloom as well in this environment. They will only bloom if they are exposed to 5-6 hours of direct sunlight. In order to prevent the plant from receiving too much direct sunlight, it is best to offer some afternoon shade if your area regularly experiences harsh sunlight.
When cacti don't get enough light, their stems tend to be thinner than they should, and they usually grow thinner and have a pointed instead of rounded tip. The stem may also be paler, shorter, or even lack spines, or its spines may be more widely spaced. To avoid these problems, make sure your silver torch cactus gets plenty of light.
Optimal Soil & Fertilizer Needs
These wooly torch cacti favor very airy, sandy soil that drains well. Planting them in ordinary soil will result in compacted roots, stunted growth, and, most likely, root rot. Instead, make or buy a well-draining potting mix, or ideally, use our specialized potting mix that contains over mycorrhizae to promote the development of a strong root system that helps your cactus to thrive.
Ideally, you should look for a fertilizer with an approximate blend of 5-10-15 that is higher in phosphorus than nitrogen. The best choice is to use an organic fertilizer as they last longer and keep your soil alive by adding other beneficial compounds and microbes that encourage plant health and nutrient absorption.
Hardiness Zones & More
The silver torch cactus requires sunny, warm climates to thrive in its natural habitat, but some species are tolerant of cold temperatures. Generally, these are hardy plants that can be grown in the garden in USDA zone 9 - 10. It thrives in moderate room temperatures during its active growth phase.
While the cactus is dormant in the winter, temperatures shouldn't rise above 50–59°F. This Cleistocactus strausii cactus will attempt to grow if the temperature is too high, but it won't receive enough light to do so normally, resulting in unusually thin and sluggish new growth.
Additionally, these cultivated plants can endure temperatures as low as 20 °F. It is therefore best to plant your silver torch cactus plants in a container that you can bring indoors during the winter if you live in a cold climate.
Be sure to add Silver Torch Cleistocactus strausii to your home or garden and enjoy its low maintenance care, while admiring its impressive display year after year.
Bloom Season
Flower Color
Growth Rate
Hardiness Zone
Mature Size
Plant Type
Sun Exposure
Toxicity
Watering Needs
| Bloom Season | Late spring, summer |
|---|---|
| Botanical Name | Cleistocactus strausii |
| Common Name | Silver torch |
| Dormancy | Winter |
| Family | Cactaceae |
| Flower Color | Dark pink, red, burgundy |
| Genus | Cleistocactus |
| Growth Habit | Columnar |
| Growth Rate | Slow |
| Hardiness Zone | 9, 10, 11 |
| Mature Size | 10 ft. tall |
| Native Area | Bolivia, Argentina |
| Plant Type | Perennial cactus |
| Propagation | By stem cuttings |
| Resistance | Drought tolerant, Pest resistance, heat resistant, deer resistant |
| Soil PH | 6.5, Acidic, Neutral |
| Soil Type | specialized cactus potting soil |
| Special Features | Showy flowers |
| Sun Exposure | Full sun, partial shade |
| Toxicity | Safe for humans, safe for dogs, safe for cats |
| Watering Needs | Low |
- Description
- Key Plant Features
Are you looking for something unique that will make your neighbors envious? Introducing the silver torch cactus, also known as Cleistocactus strausii, a vibrant member of the Cleistocactus genus. The name is derived from the Greek word "kleistos," which means "closed," referring to the fact that the plant's red or burgundy tubular flowers rarely open.
With its wooly white appearance, thanks to its fine needles and bristles covering its stem, it's like having a fluffy cloud in your home! And the best part? It's super easy to care for!
This stunning columnar cactus is sure to stand out in any garden with a width of about 6 feet and has long, thin cylindrical stems that can extend up to 10 feet, adding a touch of exotic beauty to your outdoor oasis.
But what's even better than its striking appearance? This is an incredibly low-maintenance plant hailing from high mountain regions in Bolivia and Argentina. You can easily propagate silver torch cactus by stem cuttings, requiring very little attention from you. Whether you're an experienced gardener or just starting out, this plant is perfect for anyone who wants a gorgeous addition to their collection without all the fuss.
Watering Needs
Despite being a drought-tolerant plant, silver torch cacti prefer moderate watering during the growing season in the spring and summer months. To encourage healthy root development, water the plant deeply but sparingly.
When these desert cacti go dormant in the winter, water it less, soaking it completely, then letting the soil completely dry out. In spite of the right watering frequency, cactus roots can be damaged if the soil is not fast draining.
Light Requirements
The silver torch cactus thrives in direct sunlight. Even though it can handle some partial shade, it won't bloom as well in this environment. They will only bloom if they are exposed to 5-6 hours of direct sunlight. In order to prevent the plant from receiving too much direct sunlight, it is best to offer some afternoon shade if your area regularly experiences harsh sunlight.
When cacti don't get enough light, their stems tend to be thinner than they should, and they usually grow thinner and have a pointed instead of rounded tip. The stem may also be paler, shorter, or even lack spines, or its spines may be more widely spaced. To avoid these problems, make sure your silver torch cactus gets plenty of light.
Optimal Soil & Fertilizer Needs
These wooly torch cacti favor very airy, sandy soil that drains well. Planting them in ordinary soil will result in compacted roots, stunted growth, and, most likely, root rot. Instead, make or buy a well-draining potting mix, or ideally, use our specialized potting mix that contains over mycorrhizae to promote the development of a strong root system that helps your cactus to thrive.
Ideally, you should look for a fertilizer with an approximate blend of 5-10-15 that is higher in phosphorus than nitrogen. The best choice is to use an organic fertilizer as they last longer and keep your soil alive by adding other beneficial compounds and microbes that encourage plant health and nutrient absorption.
Hardiness Zones & More
The silver torch cactus requires sunny, warm climates to thrive in its natural habitat, but some species are tolerant of cold temperatures. Generally, these are hardy plants that can be grown in the garden in USDA zone 9 - 10. It thrives in moderate room temperatures during its active growth phase.
While the cactus is dormant in the winter, temperatures shouldn't rise above 50–59°F. This Cleistocactus strausii cactus will attempt to grow if the temperature is too high, but it won't receive enough light to do so normally, resulting in unusually thin and sluggish new growth.
Additionally, these cultivated plants can endure temperatures as low as 20 °F. It is therefore best to plant your silver torch cactus plants in a container that you can bring indoors during the winter if you live in a cold climate.
Be sure to add Silver Torch Cleistocactus strausii to your home or garden and enjoy its low maintenance care, while admiring its impressive display year after year.
Bloom Season
Flower Color
Growth Rate
Hardiness Zone
Mature Size
Plant Type
Sun Exposure
Toxicity
Watering Needs
| Bloom Season | Late spring, summer |
|---|---|
| Botanical Name | Cleistocactus strausii |
| Common Name | Silver torch |
| Dormancy | Winter |
| Family | Cactaceae |
| Flower Color | Dark pink, red, burgundy |
| Genus | Cleistocactus |
| Growth Habit | Columnar |
| Growth Rate | Slow |
| Hardiness Zone | 9, 10, 11 |
| Mature Size | 10 ft. tall |
| Native Area | Bolivia, Argentina |
| Plant Type | Perennial cactus |
| Propagation | By stem cuttings |
| Resistance | Drought tolerant, Pest resistance, heat resistant, deer resistant |
| Soil PH | 6.5, Acidic, Neutral |
| Soil Type | specialized cactus potting soil |
| Special Features | Showy flowers |
| Sun Exposure | Full sun, partial shade |
| Toxicity | Safe for humans, safe for dogs, safe for cats |
| Watering Needs | Low |