Introducing the Haageocereus pseudomelanostele, which is a stunning member of the Haageocereus genus. Native to Peru, it is also known as Haageocereus chrysacanthus.
The Haageocereus pseudomelanostele has cylindrical stems that can grow up to 2-3 feet tall. The greenish-gray ribbed stems have long spines that are actually modified hairs called trichomes, which help protect the cactus from intense sunlight and reduce water loss.
Its large areoles are narrow and lined with white wool. It also has numerous yellowish radial spines and white bristles.
When it comes to flowers, the Haageocereus pseudomelanostele produces beautiful, white, dark purple nocturnal blooms.
These flowers are usually tubular in shape and can be around 2-3 inches long.
They open up at night and have a lovely fragrance that attracts pollinators like moths.
In terms of care, this cactus prefers bright, indirect sunlight and well-draining soil. It's important not to overwater it, as it's adapted to arid conditions. Water sparingly, allowing the soil to dry out between waterings. It also appreciates a bit of humidity, so misting it occasionally can be beneficial.
Generally, it is recommended to keep indoor temperatures between 60-80°F and to place outdoor plants in USDA zones 9-11 for optimal growth.
Propagation of the Haageocereus pseudomelanostele can be done through stem cuttings. Simply take a cutting from a healthy stem, let it dry out for a few days, and then plant it in well-draining soil. It should root and start growing within a few weeks.
Be sure to add Haageocereus pseudomelanostele 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
Resistance
Sun Exposure
Watering Needs
| Bloom Season | Late spring, early summer |
|---|---|
| Botanical Name | Haageocereus pseudomelanostele |
| Dormancy | Winter |
| Family | Cactaceae |
| Flower Color | White, dark purple |
| Genus | Haageocereus |
| Growth Habit | Cylindrical |
| Growth Rate | Slow |
| Hardiness Zone | 9, 10, 11 |
| Mature Size | 3 ft. tall |
| Native Area | Peru |
| Plant Type | Cactus |
| Propagation | By offsets, seeds |
| Resistance | Extremely drought-tolerant, pest resistant, heat tolerant |
| Soil PH | 6.5, Acidic, Neutral |
| Soil Type | Cactus potting mix soil |
| Special Features | Easy to maintain |
| Sun Exposure | Full sun (6+ hrs.), Partial shade (3–6 hrs. sun) |
| Watering Needs | Low |
Growers Quick Reference Guide - Key Features
| Bloom Season | Late spring, early summer |
|---|---|
| Botanical Name | Haageocereus pseudomelanostele |
| Dormancy | Winter |
| Family | Cactaceae |
| Flower Color | White, dark purple |
| Genus | Haageocereus |
| Growth Habit | Cylindrical |
| Growth Rate | Slow |
| Hardiness Zone | 9, 10, 11 |
| Mature Size | 3 ft. tall |
| Native Area | Peru |
| Plant Type | Cactus |
| Propagation | By offsets, seeds |
| Resistance | Extremely drought-tolerant, pest resistant, heat tolerant |
| Soil PH | 6.5, Acidic, Neutral |
| Soil Type | Cactus potting mix soil |
| Special Features | Easy to maintain |
| Sun Exposure | Full sun (6+ hrs.), Partial shade (3–6 hrs. sun) |
| Watering Needs | Low |
- Description
- Key Plant Features
Introducing the Haageocereus pseudomelanostele, which is a stunning member of the Haageocereus genus. Native to Peru, it is also known as Haageocereus chrysacanthus.
The Haageocereus pseudomelanostele has cylindrical stems that can grow up to 2-3 feet tall. The greenish-gray ribbed stems have long spines that are actually modified hairs called trichomes, which help protect the cactus from intense sunlight and reduce water loss.
Its large areoles are narrow and lined with white wool. It also has numerous yellowish radial spines and white bristles.
When it comes to flowers, the Haageocereus pseudomelanostele produces beautiful, white, dark purple nocturnal blooms.
These flowers are usually tubular in shape and can be around 2-3 inches long.
They open up at night and have a lovely fragrance that attracts pollinators like moths.
In terms of care, this cactus prefers bright, indirect sunlight and well-draining soil. It's important not to overwater it, as it's adapted to arid conditions. Water sparingly, allowing the soil to dry out between waterings. It also appreciates a bit of humidity, so misting it occasionally can be beneficial.
Generally, it is recommended to keep indoor temperatures between 60-80°F and to place outdoor plants in USDA zones 9-11 for optimal growth.
Propagation of the Haageocereus pseudomelanostele can be done through stem cuttings. Simply take a cutting from a healthy stem, let it dry out for a few days, and then plant it in well-draining soil. It should root and start growing within a few weeks.
Be sure to add Haageocereus pseudomelanostele 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
Resistance
Sun Exposure
Watering Needs
| Bloom Season | Late spring, early summer |
|---|---|
| Botanical Name | Haageocereus pseudomelanostele |
| Dormancy | Winter |
| Family | Cactaceae |
| Flower Color | White, dark purple |
| Genus | Haageocereus |
| Growth Habit | Cylindrical |
| Growth Rate | Slow |
| Hardiness Zone | 9, 10, 11 |
| Mature Size | 3 ft. tall |
| Native Area | Peru |
| Plant Type | Cactus |
| Propagation | By offsets, seeds |
| Resistance | Extremely drought-tolerant, pest resistant, heat tolerant |
| Soil PH | 6.5, Acidic, Neutral |
| Soil Type | Cactus potting mix soil |
| Special Features | Easy to maintain |
| Sun Exposure | Full sun (6+ hrs.), Partial shade (3–6 hrs. sun) |
| Watering Needs | Low |
Growers Quick Reference Guide - Key Features
| Bloom Season | Late spring, early summer |
|---|---|
| Botanical Name | Haageocereus pseudomelanostele |
| Dormancy | Winter |
| Family | Cactaceae |
| Flower Color | White, dark purple |
| Genus | Haageocereus |
| Growth Habit | Cylindrical |
| Growth Rate | Slow |
| Hardiness Zone | 9, 10, 11 |
| Mature Size | 3 ft. tall |
| Native Area | Peru |
| Plant Type | Cactus |
| Propagation | By offsets, seeds |
| Resistance | Extremely drought-tolerant, pest resistant, heat tolerant |
| Soil PH | 6.5, Acidic, Neutral |
| Soil Type | Cactus potting mix soil |
| Special Features | Easy to maintain |
| Sun Exposure | Full sun (6+ hrs.), Partial shade (3–6 hrs. sun) |
| Watering Needs | Low |
