Rough Mexican Clover
Richardia scabra
Scabra
About this plant
Richardia scabra, commonly called Rough Mexican Clover, is a low-growing perennial plant known for its small, clover-like leaves and delicate white to pale pink flowers. It is often used as ground cover in gardens and lawns, appreciated for its drought tolerance and ability to thrive in poor soils. The plant has a rough texture on its leaves and stems, which is reflected in its name.
Taxonomy
- Genus
- Richardia
- Family
- Rubiaceae
- Higher classification
- Order Gentianales
- Plant type
- Perennial
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Southern United States, Mexico, Central America
- Distribution
- Native to the southern United States, Mexico, and parts of Central America; widely cultivated in warm regions worldwide as ground cover.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing, East-facing
- Watering frequency
- Moderate
- Watering interval
- 5–10 days
- Humidity
- Normal
- Minimum
- 5 °C
- Maximum
- 35 °C
- Optimal
- 15–30 °C
- USDA hardiness zones
- 8–11
- Soil pH
- 6.0–7.5 (slightly acidic to neutral)
- Soil type
- well-draining sandy or loamy soil
Watering. Water regularly during establishment. Once established, the plant tolerates dry periods but benefits from occasional watering during prolonged drought.
Fertilizing. Apply a balanced, slow-release fertilizer in spring to support healthy growth. Avoid over-fertilizing, which can cause excessive leaf growth at the expense of flowers.
Richardia scabra is a hardy plant that grows well in sunny locations and tolerates dry conditions once established. It prefers well-draining soil and needs only moderate watering. It is low-maintenance and resistant to most pests and diseases.
Propagation
- Propagation methods
- Seeds, Cuttings
- Care difficulty
- Easy
Ornamental features
- Flowering
- Yes
- Flowering period
- spring–summer
Small, rough-textured leaves with clusters of small white or pale pink flowers; forms a dense, spreading ground cover.
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Low spread
Generally considered non-toxic but avoid ingestion. Sap may cause mild skin irritation in sensitive people.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Sap or latex, Skin contact
- Pollen level
- Low
Richardia scabra may cause mild skin irritation in sensitive individuals due to contact with its sap. It is not known to produce airborne pollen that commonly triggers allergies. To reduce exposure, wear gloves when handling the plant and wash skin thoroughly after contact.
Common problems
Overwatering can lead to root rot. In low light, the plant may grow leggy and weak. Occasionally, pests like aphids may appear but are generally not a serious problem.
Uses
Used mainly as an ornamental ground cover in gardens and landscapes, especially in warm climates. Its drought tolerance makes it suitable for low-water gardens.
Notes
Prune lightly after flowering to maintain a neat appearance. The plant can spread quickly in favorable conditions, so monitor to prevent unwanted spreading.