Nuttall's Evolvulus
Evolvulus nuttallianus Schult.
Nuttallianus
About this plant
Evolvulus nuttallianus Schult. is a low-growing, spreading plant known for its small, blue flowers and fine, silvery-green leaves. It is often used as ground cover or in rock gardens due to its drought tolerance and attractive appearance. This plant adds a soft, colorful touch to sunny garden areas and is valued for its resilience in dry conditions.
Taxonomy
- Genus
- Evolvulus
- Family
- Convolvulaceae
- Higher classification
- Order: Solanales
- Plant type
- Perennial
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Central and Southern United States
- Distribution
- Native to parts of the central and southern United States, it is cultivated in gardens worldwide in suitable climates.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing
- Watering frequency
- Moderate
- Watering interval
- 5–10 days
- Humidity
- Normal
- Minimum
- -10 °C
- Maximum
- 35 °C
- Optimal
- 15-25 °C
- USDA hardiness zones
- 7-10
- Soil pH
- 6.0-7.5 (neutral to slightly acidic)
- Soil type
- well-draining sandy or loamy soil
Watering. Water moderately, allowing the soil to dry out between waterings. It tolerates drought well but benefits from occasional watering during hot, dry periods.
Fertilizing. Feed with a balanced, slow-release fertilizer once in early spring. Avoid over-fertilizing, which can cause excessive leafy growth with fewer flowers.
This plant is tough and easy to care for. It prefers sunny spots and well-draining soil. Overwatering can cause root problems, so water moderately and allow soil to dry between waterings. It requires little maintenance and is suitable for beginners.
Propagation
- Propagation methods
- Seeds, Cuttings
- Care difficulty
- Easy
Ornamental features
- Flowering
- Yes
- Flowering period
- summer
Small blue flowers, silvery-green foliage, spreading low form
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Not considered a weed
Non-toxic to humans and pets, safe to grow around children and animals.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Pollen
- Pollen level
- Low
Evolvulus nuttallianus Schult. is generally not known to cause allergies. People sensitive to pollen should still be cautious during its flowering period, but reactions are rare. To reduce exposure, avoid direct contact with the plant's sap and wash hands after handling.
Common problems
Overwatering can lead to root rot. Poor drainage or too much shade may cause weak growth. Occasionally, pests like aphids may appear but are usually manageable.
Uses
Used as a ground cover or ornamental plant in gardens and rockeries. Its drought tolerance makes it suitable for xeriscaping.
Notes
Prune lightly after flowering to maintain shape and encourage bushier growth. Repotting is rarely needed as it grows close to the ground. Avoid waterlogged soil to prevent root rot.