Sweet Autumn Clematis
Clematis terniflora
A vigorous, deciduous to semi-evergreen woody vine featuring dark green compound leaves, prolific clusters of small white flowers, and numerous elongated flower buds before full bloom.
- Light
- Full sun to partial shade, requiring at least 6 hours of direct sunlight daily for optimal flowering.
- Water
- Moderate watering needs. Water deeply once a week during dry spells, keeping the root zone consistently moist but ensuring good drainage to prevent waterlogging.
- Growth
- Perennial climbing vine growing up to 15 to 30 feet in height with a fast growth rate, utilizing twining leaf petioles to attach to supports.
Care instructions
Provide full sun to partial shade with a sturdy trellis or support structure for climbing. Water regularly to establish a deep root system, allowing the soil surface to dry slightly between waterings. Apply a balanced slow-release fertilizer in early spring as new growth begins.
Growing details
Sunlight
Full sun to partial shade, requiring at least 6 hours of direct sunlight daily for optimal flowering.
Watering
Moderate watering needs. Water deeply once a week during dry spells, keeping the root zone consistently moist but ensuring good drainage to prevent waterlogging.
Soil
Prefers rich, loamy, well-draining soil with a neutral to slightly alkaline pH range of 6.5 to 7.5.
Hardiness zone
USDA hardiness zones 4 through 9.
Growth habit
Perennial climbing vine growing up to 15 to 30 feet in height with a fast growth rate, utilizing twining leaf petioles to attach to supports.
Bloom season
Late summer to autumn, producing abundant small, star-shaped, fragrant white flowers with prominent yellow centers.
Propagation
Propagated easily through semi-hardwood cuttings taken in summer or by sowing seeds in autumn or spring after cold stratification.
Common pests & issues
Generally resilient, but may occasionally be affected by powdery mildew in humid conditions or stem rot if drainage is poor. Treat fungal issues with appropriate fungicides and improve air circulation.
Similar species
Clematis paniculata and Clematis vitalba. Clematis terniflora can be distinguished by its distinctively smooth, thick leaflets and late-season flowering habit.