Rosebay Rhododendron – Rhododendron maximum Shrub Seeds | 1800 Seeds | Hardy Evergreen Woodland Shrub | Showy Shade Blooms

Create a stunning woodland landscape with Rosebay Rhododendron (Rhododendron maximum), a hardy evergreen shrub prized for its large glossy leaves and beautiful late-season flower clusters. Native to eastern North America, this shade-loving species thrives in acidic woodland soils and provides year-round structure and elegance in naturalized gardens.

Typically growing 8–15 feet tall and wide, Rosebay Rhododendron forms a dense, upright rounded shrub that can serve as a privacy screen or dramatic woodland backdrop. In ideal conditions, mature plants may grow even larger. Its leathery, dark green evergreen foliage offers four-season interest and a rich contrast to surrounding shade plants.

In late spring to early summer, upright clusters of 15–30 funnel-shaped flowers bloom in shades of pale pink to nearly white, often marked with yellow-green spotting. These showy blooms attract hummingbirds and butterflies and brighten shaded spaces when many other plants have finished flowering. Exceptionally cold tolerant and long-lived, this shrub is ideal for woodland gardens, mass plantings, foundation plantings, and natural screens.

You will receive:
✔️ 1,800 Rosebay Rhododendron seeds
✔️ Botanical name: Rhododendron maximum
✔️ Fresh, untreated seeds
✔️ Labeled seed packet with sowing instructions
✔️ Secure packaging for safe delivery

🌼 Growing Information
Common Name: Rosebay Rhododendron
Botanical Name: Rhododendron maximum
Plant Type: Evergreen flowering shrub
Growth Stage: Seed
Sun Requirements: Part shade to high open shade
Soil: Acidic, humusy, organically rich, well-drained but moisture-retentive
Watering: Medium; keep evenly moist and never allow roots to dry out
Mature Height: 8–15 feet (larger in ideal woodland settings)
Growth Rate: Medium
USDA Zones: 4–6
Container Friendly: Suitable for early growth only

💡 Care Tip:
Surface sow seeds indoors at 55–64°F using an acidic seed-starting mix. Do not cover seeds, as they require light to germinate. Use a humidity dome and mist gently to maintain consistent moisture. Protect from hot afternoon sun and ensure excellent drainage to prevent root rot.