Ernest Markham Clematis

Ernest Markham Clematis (Clematis x 'Ernest Markham')

Ernest Markham Clematis brings bold, saturated flower color to trellises, arbors, and fences with a classic climbing habit that gives the garden height and drama. Its rich crimson-red blooms stand out strongly against green foliage, making it a powerful choice when a planting needs more energy and visual weight through summer. This variety is especially useful for gardeners who want a vigorous flowering vine that can cover a support and create a true statement. For vertical spaces that need long-lasting color and a more traditional garden feel, Ernest Markham remains a strong favorite.

It works especially well where the vine can climb freely and show off its heavy bloom display through the warmer months. The flower color pairs beautifully with pale roses, silver foliage, and softer perennials, creating a stronger sense of contrast in mixed plantings. Because it flowers on new growth, it is easier to prune than many early large-flowered clematis types. When you want a clematis that feels bold, dependable, and full of garden character, this cultivar delivers lasting value.

Distinctive Features

Ernest Markham is a large deciduous climbing clematis known for its single velvety crimson-red to magenta-red flowers with buff to pale brown anthers. The blooms are broad and showy, typically reaching up to about 6 inches across, and are produced from mid to late summer into early fall. This cultivar is generally vigorous, often reaching about 10 to 12 feet tall with support, which makes it useful for covering trellises, arches, and fences. Its combination of deep flower color, reliable summer bloom, and strong climbing habit is what has made it a long-admired garden classic.

Growing Conditions

• Sun: Plant in full sun to partial shade, with the best flowering often coming from good light on the vine and cooler, shaded roots.
• Soil: Grow in fertile, moist, well-drained soil enriched with organic matter and avoid sites that remain soggy.
• Water: Provide regular water to keep the soil evenly moist, especially during establishment and during hot or dry periods.
• Zones: This clematis is generally hardy in USDA Zones 4 to 9.
• Deer Resistance: Deer resistance is often considered moderate, though browsing can still occur where pressure is high.

Ideal Uses

• Trellises: Use it on trellises, lattice panels, and fences where the strong summer flower display can be shown clearly.
• Arbors: This variety is well suited to arbors and arches where its vigorous growth can create a more dramatic vertical effect.
• Mixed Plantings: Let it climb with shrubs or roses where its deep red flowers can add contrast and seasonal layering.
• Screening: Its larger habit makes it useful for softening fences and creating flowering coverage on upright supports.
• Focal Point: Use Ernest Markham Clematis as a focal point on a trellis or arbor where its velvety crimson-red flowers can anchor the vertical planting and carry color through late summer.

Low Maintenance Care

• Watering: Keep the root zone evenly moist, especially during the first growing season and in prolonged dry weather.
• Mulching: Apply mulch around the base to help keep roots cool and maintain more consistent soil moisture.
• Pruning: Prune hard in late winter or early spring, since this variety flowers on current season growth and responds well to a stronger seasonal cutback.
• Feeding: Feed in spring with a balanced fertilizer to support vigorous new growth and a strong summer bloom display.
• Support: Provide a sturdy trellis, arbor, or similar structure early so the vine can climb cleanly and cover the support well.

Why Choose Ernest Markham Clematis?

• Bold Color: The deep crimson-red flowers bring more intensity and visual weight than many softer clematis shades.
• Summer Bloom: Its flowering season helps keep vertical spaces active after many spring bloomers have passed.
• Vigorous Growth: This variety is strong enough to make a real impact on larger trellises, fences, and arches.
• Simple Pruning: Its new-wood flowering habit makes annual pruning more straightforward and easier to manage.
• Classic Garden Presence: This is a long-established clematis that continues to earn its place in traditional and cottage-style gardens.

Ernest Markham Clematis is a rewarding choice for gardeners who want a vine with stronger flower color, vigorous growth, and a long season of summer performance. Its velvety red blooms and classic climbing habit make it especially useful where vertical plantings need more drama and presence. When the goal is to create a bold flowering statement with a familiar and dependable clematis, this variety is easy to appreciate.