Contents
Description
Stenocereus is a genus of columnar cacti native to the Americas. This cactus is known for its fascinating appearance, with long, cylindrical stems that grow erect or slightly curved. The stems are segmented with ridges and covered in spines. Some species of Stenocereus produce large, showy flowers that bloom at night and attract pollinators such as bats and moths.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Cactaceae |
| Genus | Stenocereus |
Appearance
Stenocereus is a tall, slender cactus that can grow up to 30 feet tall in the wild. Its stems are typically 4-8 inches in diameter and have 4-9 ribs that run vertically along the length of the stem. The stems are covered in spines that can be up to 3 inches long. The spines are usually yellow or brown and can have a hooked or straight shape. Some species of Stenocereus produce large, white, funnel-shaped flowers that bloom at night and can be up to 8 inches in diameter.
Care Guide
Stenocereus is a low-maintenance cactus that is easy to care for. Here are some tips on how to care for your Stenocereus:
- Water: Water your Stenocereus sparingly, only when the soil is completely dry. Overwatering can cause root rot.
- Fertilization: Fertilize your Stenocereus once a month during the growing season (spring and summer) with a cactus fertilizer.
- Soil: Plant your Stenocereus in well-draining cactus soil.
- Sunlight: Stenocereus prefers full sun but can tolerate partial shade.
- Hardiness Zones: Stenocereus can be grown in USDA hardiness zones 9-11.
Common Pests & Diseases
Stenocereus is generally resistant to pests and diseases, but it can still be affected by some common issues:
- Mealybugs: These pests can infest the stems and cause damage. Use a cotton swab dipped in rubbing alcohol to remove mealybugs.
- Root Rot: Overwatering can cause root rot, which can be fatal to the plant. Ensure the soil is well-draining and only water when the soil is completely dry.
Habitat
Stenocereus is native to the Americas, from the southwestern United States to Central and South America. This cactus is found in a variety of habitats, including deserts, grasslands, and tropical forests. Some species of Stenocereus are endangered due to habitat loss and overcollection.
Question and Answer
Q: Can Stenocereus be propagated from cuttings?
A: Yes, Stenocereus can be propagated from stem cuttings. Allow the cuttings to dry for a few days before planting them in well-draining soil.
Q: How often should I fertilize my Stenocereus?
A: Fertilize your Stenocereus once a month during the growing season (spring and summer) with a cactus fertilizer.
Q: Can Stenocereus be grown indoors?
A: Yes, Stenocereus can be grown indoors as long as it receives plenty of sunlight and is planted in well-draining soil.
Q: How often should I water my Stenocereus?
A: Water your Stenocereus sparingly, only when the soil is completely dry. Overwatering can cause root rot.
Related Plants
- Carnegiea gigantea (Saguaro cactus)
- Echinocactus grusonii (Golden barrel cactus)
- Opuntia ficus-indica (Prickly pear cactus)
- Cereus peruvianus (Peruvian apple cactus)
References
- “Stenocereus.” The Cactus Family, cactiguide.com/cactus/?genus=Stenocereus.
- “Stenocereus.” Encyclopedia Britannica, www.britannica.com/plant/Stenocereus.
- “Stenocereus.” Wikipedia, Wikimedia Foundation, 29 Aug. 2021, en.wikipedia.org/wiki/Stenocereus.
