Contents
Description
Oxalis is a genus of flowering plants in the wood-sorrel family Oxalidaceae. It is commonly known as wood sorrel, sourgrass, or shamrock. The plant has around 900 species, distributed all over the world, with the highest diversity in South America. Oxalis is a herbaceous plant that can be either annual or perennial. It is often grown as a houseplant or outdoor ornamental plant because of its attractive foliage and flowers.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Oxalidales |
| Family | Oxalidaceae |
| Genus | Oxalis |
Appearance
Oxalis has a distinctive clover-like appearance, with trifoliate leaves that are usually heart-shaped or triangular. The leaves can be green, purple, or red, depending on the species. The flowers are typically five-petaled and come in a range of colors, including pink, white, yellow, and red. The plant can grow up to 12 inches tall, with some species producing stems that trail along the ground.
Care Guide
Oxalis is relatively easy to care for and can thrive both indoors and outdoors. Here are some essential care tips:
Water
Oxalis prefers well-draining soil and moderate watering. Overwatering can cause root rot, while underwatering can cause the leaves to wilt. Water the plant when the top inch of soil feels dry to the touch.
Fertilization
Fertilize the plant once a month during the growing season with a balanced fertilizer. Avoid fertilizing in the winter when the plant is dormant.
Soil
The plant prefers slightly acidic soil with a pH between 5.5 and 6.5. Use a well-draining potting mix that contains peat moss or perlite.
Sunlight
Oxalis prefers bright, indirect light. Direct sunlight can scorch the leaves, while too little light can cause the plant to become leggy.
Hardiness Zones
Oxalis is hardy in USDA zones 6-10. In colder zones, the plant should be treated as an annual or grown indoors.
Common Pests & Diseases
Oxalis is relatively resistant to pests and diseases. However, like all plants, it can be affected by some common issues:
Pests
- Spider mites
- Aphids
- Mealybugs
- Scale insects
Diseases
- Root rot
- Powdery mildew
- Leaf spot
Habitat
Oxalis is a very adaptable plant that can grow in a variety of habitats, including grasslands, forests, and wetlands. It is most commonly found in South America, but some species can be found in North America, Europe, Asia, and Africa.
Question and Answer
Q: Can Oxalis be grown indoors?
A: Yes, Oxalis can be grown indoors as a houseplant.
Q: How often should I water my Oxalis plant?
A: Water the plant when the top inch of soil feels dry to the touch.
Q: What is the ideal pH for Oxalis soil?
A: Oxalis prefers slightly acidic soil with a pH between 5.5 and 6.5.
Q: How can I prevent spider mites on my Oxalis plant?
A: Spider mites can be prevented by keeping the plant well-watered and regularly misting the leaves to increase humidity.
Related Plants
- Wood sorrel (Oxalis acetosella)
- Shamrock (Oxalis regnellii)
- Sourgrass (Oxalis stricta)
- Iron Cross (Oxalis tetraphylla)
References
- https://en.wikipedia.org/wiki/Oxalis
- https://www.gardeningknowhow.com/houseplants/shamrock/growing-shamrock-plants.htm
- https://www.thespruce.com/grow-oxalis-or-shamrock-1902833
- https://www.bhg.com/gardening/plant-dictionary/annual/oxalis/
