Any reference to medicinal or culinary use of plants or plant parts should in no way be considered an endorsement by The Ocala Food Forest or its staff. Research is crucial in safe and proper consumption or experimentational use of any plant.
Plant Information
| Scientific Name: | Plectranthus rotundifolius |
| Family Name: | Lamiaceae |
| Common Name(s): | African Potato Mint, Spreading Plectranthus |
| Size: | 18 inches tall, spreads. If you want to control the spread, place in container. |
| Plant Type: | Herbaceous perennial |
| Origin/Geographic Distribution: | Native to tropical Africa |
| Native to: | Tropical Africa, & India |
| Native range in the USA: | Not native, occasionally cultivated in warmer states like Florida and California |
| Conservation Status: | Does not currently have a designated conservation status under major international bodies. It is not listed as endangered or threatened.
However, it is described as a rare and unique root plant. |
Cultivation
| Planting: | Spring |
| Sun Exposure: | Full sun to partial shade |
| Soil Type: | Loamy, well-drained |
| Soil pH: | Neutral to slightly acidic (pH 6.5-7.0) |
| Water Requirements: | Moderate |
| Fertilizer Requirements: | Low; balanced fertilizer monthly during the growing season. May not need to fertilize, tubers may spread rapidly. Should be grown in a container because of it's nature to spread. If any tubers are left in ground, you will not need to replant the following year. |
| Pruning Requirements: | Minimal or none. Will grow well if left alone. |
| Growth Rate: | Fast, can grow up to 12 inches in a growing season |
| Companion Planting: | Works well with other tropical plants. However, I grow this in a large bed by itself and have put in measures to keep it contained to its planter, |
Tolerance and Hardiness
| Drought Tolerance: | Low; requires consistent moisture |
| Frost Tolerance: | Very low; does not tolerate frost (below 32°F / 0°C) |
| Heat Tolerance: | High; tolerates temperatures up to 95°F / 35°C |
| Wind Tolerance: | Medium; sensitive to strong winds which can damage leaves |
| Salt Tolerance: | Low; not suitable for coastal areas with high salt exposure |
| USDA Plant Hardiness Zones: | 9 to 11 |
Flower and Fruit Information
| Fruit Type: | Tubers |
| Harvest Time: | 6 to 9 months after planting; tubers are ready when the leaves begin to yellow and die back in the Fall/Winter season. |
| Fruit Description: | Small, round tubers similar to small potatoes |
| Edible Plant: | Yes, particularly the tubers |
| Edible Parts: | Tubers are edible and used similar to potatoes |
| Medicinal: | Used in traditional African medicine for a variety of ailments |
| Flower Color: | Pale purple |
| Flower Shape: | Spike-like |
| Fragrance: | None |
| Flower Bloom Time: | Summer (June to August) |
| Bloom Duration: | Several weeks |
| Pollination: Self or Other? |
Other (insects) |
Wildlife
| Attracts: | Bees and butterflies |
| Pollinators: | Bees, butterflies, and other insects |
| Problematic Pest: | None noted specifically for this plant |
Health and Safety
| Toxic: | No |
| Poisonous Parts of Plant: | None |
| Toxic to Humans: | No |
| Toxic to Animals: | No |
| Plant Diseases to be aware of: | Fungal diseases, especially in overly wet conditions. |
African Potato Mint (Plectranthus rotundifolius)
Embrace the charm of African Potato Mint, scientifically known as Plectranthus rotundifolius, a robust and vivacious herbaceous perennial that's as functional as it is beautiful. Native to the warm, tropical climates of Africa, this plant is cherished not only for its culinary uses but also for its striking appearance and ease of cultivation.
Culinary Delight
The star of the African Potato Mint is its tuber, akin to a small potato but bursting with flavor. These tubers can be cooked in a myriad of ways, offering a nutritious supplement to meals with their rich, earthy taste. Whether roasted, boiled, or added to stews, the tubers of African Potato Mint add a delightful twist to traditional dishes.
Garden Aesthetics
Beyond its use in the kitchen, African Potato Mint features lush, green foliage and delicate pale purple flowers that come to life each summer. Growing up to 18 inches tall, its spread is generous, making it a perfect ground cover or an attractive edge plant in tropical and subtropical gardens. The plant's fast growth and bushy form make it an excellent choice for adding greenery and color.
Eco-Friendly Benefits
This plant isn’t just about looks and taste; it also plays a pivotal role in attracting pollinators. Bees and butterflies are drawn to its flowers, making it an excellent choice for ecological gardens focused on supporting local wildlife.
Incorporate African Potato Mint into your garden for a touch of exotic flair and functionality. Whether you're after its tasty tubers or its ornamental value, this plant is sure to enrich your gardening experience and your table.