Bring bold spring color to your garden with Rhododendron 'Holden's Red', a compact evergreen shrub that carries dense clusters of rich red flowers in mid- to late spring. You will also appreciate its lustrous, dark green foliage that holds well through the seasons and gives the plant year-round structure. Mature size is typically about 48-60 inches tall with a broad, mounded habit and a spread that can reach roughly 72-96 inches, making it a strong specimen plant or a dependable foundation shrub.

For best results, plant in part shade to shade, especially with protection from hot afternoon sun and drying winter winds. Choose a site with consistently moist, well-drained soil that is rich in organic matter. Rhododendrons prefer an acidic soil environment, so amend with pine bark fines, leaf mold, or composted needles as needed, and mulch 2-3 inches to help keep roots cool and evenly moist. Water deeply during establishment and during extended dry periods, but avoid soggy sites or standing water.

Prune only lightly, if at all, and do it right after flowering to avoid removing next year's buds. Deadheading spent trusses can improve appearance and help channel energy into growth, but be careful not to damage the developing buds at the base. In colder areas, site selection matters: snow cover and wind protection help reduce winter burn on broadleaf evergreens. Pair it with other acid-loving companions such as azaleas, pieris, and mountain laurel for a cohesive woodland look.

Specifications

• Cold hardiness zone: 5-8 (-20 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Part sun   Shade
• Mature height: 48-60"
• Spread: 72-96"
• Evergreen: Yes

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