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Description
Oxalis Obtusa, also known as the Iron Cross plant or the Good Luck plant, is a perennial plant that belongs to the Oxalidaceae family. It is native to South America and is widely grown as an ornamental plant due to its attractive foliage and delicate flowers.The plant grows up to 6 inches tall and produces clover-like leaves that are green with a dark purple spot in the center, forming the shape of an iron cross. The small flowers, which bloom in the summer, are typically white or pink with yellow centers.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Oxalidales |
| Family | Oxalidaceae |
| Genus | Oxalis |
Appearance
The Oxalis Obtusa plant has a unique appearance that sets it apart from other plants. Its clover-shaped leaves are a bright green color with a dark purple spot in the center, forming the shape of an iron cross. The leaves are typically 1-2 inches in length and have a smooth texture.The small flowers, which bloom in the summer, are typically white or pink with yellow centers. The flowers are bell-shaped and have five petals. The plant produces small, round seed pods that contain several seeds.
Care Guide
To keep your Oxalis Obtusa plant healthy and thriving, it’s important to follow a few care guidelines. Here are some tips for caring for your Iron Cross plant:
Water
Oxalis Obtusa prefers moist soil, so it’s important to keep the soil consistently damp. However, be careful not to overwater the plant, as this can lead to root rot. Water the plant when the top inch of soil feels dry to the touch.
Fertilization
Fertilize your Oxalis Obtusa plant every two weeks during the growing season with a balanced fertilizer. Avoid fertilizing during the winter months when the plant is in dormancy.
Soil
The plant prefers well-draining soil that is rich in organic matter. Use a potting mix that is specifically formulated for houseplants.
Sunlight
Oxalis Obtusa does best in bright, indirect sunlight. Avoid placing the plant in direct sunlight, as this can scorch the leaves.
Hardiness Zones
The plant is hardy in USDA zones 8-11 and can be grown indoors or outdoors.
Common Pests & Diseases
Like all plants, Oxalis Obtusa is susceptible to pests and diseases. Here are some common issues that may arise:
Pests
– Spider mites- Aphids- Whiteflies- MealybugsTo prevent pest infestations, keep the plant clean and free of debris. You can also use an insecticidal soap to treat any pests that do appear.
Diseases
– Root rot- Leaf spotTo prevent disease, avoid overwatering the plant and make sure it has good air circulation. If you notice any signs of disease, remove the affected leaves and treat the plant with a fungicide.
Habitat
Oxalis Obtusa is native to South America and grows in a variety of habitats, including forests, grasslands, and wetlands. The plant prefers moist soil and can tolerate partial shade.
Question and Answer
Q: How often should I water my Oxalis Obtusa plant?
A: Water the plant when the top inch of soil feels dry to the touch. Be careful not to overwater the plant, as this can lead to root rot.
Q: What is the best fertilizer for Oxalis Obtusa?
A: Use a balanced fertilizer every two weeks during the growing season. Avoid fertilizing during the winter months when the plant is in dormancy.
Q: What should I do if my Oxalis Obtusa plant gets root rot?
A: If you notice signs of root rot, remove the affected leaves and repot the plant in fresh soil. Make sure the new pot has good drainage to prevent future issues.
Q: Can Oxalis Obtusa be grown outdoors?
A: Yes, the plant is hardy in USDA zones 8-11 and can be grown outdoors in these regions.
Related Plants
Here are some related plants that you may be interested in:- Oxalis Triangularis- Oxalis Deppei- Oxalis Regnellii- Oxalis Versicolor
References
– “Oxalis Obtusa: A Field Guide.” Gardenista, https://www.gardenista.com/posts/oxalis-obtusa-iron-cross-plant-field-guide/.- “Oxalis Obtusa.” Missouri Botanical Garden, https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=a914.- “Oxalis Obtusa.” University of Florida, http://edis.ifas.ufl.edu/fp702.
