Contents
Description
Nematanthus, also known as the goldfish plant, is a genus of plants that belongs to the family Gesneriaceae. Native to Central and South America, Nematanthus is a perennial plant that is known for its unique and vibrant flowers. The name Nematanthus is derived from the Greek words “nema” meaning thread and “anthus” meaning flower, referring to the long, tubular flowers that resemble a goldfish.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Gesneriaceae |
| Genus | Nematanthus |
Appearance
The leaves of the Nematanthus plant are dark green and glossy, with a slightly serrated edge. The plant produces small, vibrant flowers that come in shades of orange, red, yellow, and pink. The flowers are tubular in shape and resemble a goldfish, with fins and a tail. The flowers bloom in the spring and summer months and can last for several weeks.
Care Guide
Nematanthus is a relatively easy plant to care for, making it a popular choice for indoor and outdoor gardens. Here are some tips for keeping your Nematanthus healthy:
- Water: Nematanthus prefers well-draining soil and should be watered when the top inch of soil is dry to the touch. Overwatering can lead to root rot, so be sure to let the soil dry out between waterings.
- Fertilization: Fertilize your Nematanthus once a month during the growing season (spring and summer) with a balanced fertilizer.
- Soil: Nematanthus prefers well-draining soil that is rich in organic matter. A mix of peat moss, perlite, and vermiculite works well.
- Sunlight: Nematanthus prefers bright, indirect sunlight. Direct sunlight can burn the leaves and cause them to wilt.
- Hardiness Zones: Nematanthus can be grown indoors or outdoors in hardiness zones 10-11.
Common Pests & Diseases
Nematanthus is susceptible to a few common pests and diseases:
- Spider mites: These tiny pests can cause yellowing and wilting of the leaves. Treat with insecticidal soap or neem oil.
- Mealybugs: Mealybugs are small, white insects that can cause stunted growth and yellowing of the leaves. Treat with insecticidal soap or neem oil.
- Root rot: Overwatering can lead to root rot, which can cause the plant to wilt and die. To prevent root rot, be sure to let the soil dry out between waterings.
Habitat
Nematanthus is native to Central and South America and can be found growing in tropical rainforests. The plant prefers warm, humid environments and can be grown outdoors in hardiness zones 10-11. It is also a popular houseplant and can be grown indoors in a bright, humid location.
Question and Answer
Q: How often should I fertilize my Nematanthus plant?
A: Fertilize your Nematanthus once a month during the growing season (spring and summer) with a balanced fertilizer.
Q: What should I do if my Nematanthus plant is wilting?
A: Wilting can be a sign of overwatering or underwatering. Check the soil to see if it is dry or wet, and adjust your watering accordingly.
Q: Can I grow Nematanthus outdoors?
A: Yes, Nematanthus can be grown outdoors in hardiness zones 10-11, as long as it is in a warm, humid environment.
Q: How often should I water my Nematanthus plant?
A: Water your Nematanthus when the top inch of soil is dry to the touch. Overwatering can cause root rot, so be sure to let the soil dry out between waterings.
Related Plants
- Achimenes
- Columnea
- Episcia
- Gloxinia
References
- “Nematanthus.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c420.
- “Nematanthus Goldfish Plant Care.” Joy Us Garden, 26 Mar. 2020, www.joyusgarden.com/nematanthus-goldfish-plant-care/.
- “Nematanthus: Care and Growing Guide.” The Spruce, 17 Dec. 2021, www.thespruce.com/nematanthus-care-plant-profile-1902769.
