‘Holden’ Rhododendron
Rhododendron ‘Holden’
Plant Details
USDA Plant Hardiness Zones: 5a-8b in hot climates | 5a-9b in cooler climates Find Your Zone
Plant Type: Evergreen Flowering Shrub
Height at Maturity: 3-4′
Width at Maturity: 4-5′
Spacing: 4′ for solid hedges; 8′ for space between plants
Flower Color: Deep Magenta-Red buds open to Brilliant Rose-Pink with Red freckles
Flower Size: 2″ in 5 to 6 in diameter clusters
Flowering Period: Spring
Flower Type: Single, in large rounded clusters
Fragrant Flowers: No
Foliage Color: Dark Green
Fragrant Foliage: No
Berries: No
Berry Color: NA
Sun Needs: Full Sun in cool climates, Morning Sun with Afternoon Shade or All Day Filtered Sun in hot climates
Water Needs: Average
Soil Type: Clay (amend heavy clay to ensure good drainage), Loam, Sand, Silt
Soil Moisture / Drainage: Moist But Well Drained
Soil pH: 5.0 – 6.0 (Acid)
Maintenance / Care: Low
Attracts: Butterflies, Visual Attention
Resistances: Heat, Humidity, Insect, Full Sun in cool climates
Description
Originally bred by the Shammarello Nursery in northern Ohio, the ‘Holden’ Rhododendron is a compact cultivar with dense, thick and lustrous evergreen leaves that are an excellent backdrop for the abundant, large clusters of deep magenta buds that open to truly stunning, deep rose pink flowers. The upper petal is adorned with dark red freckles and green spots for a wonderful contrast. A lower grower to maybe 4 feet tall and 5 feet wide, ‘Holden’ is a good fit as an accent shrub in smaller garden spaces or in groupings or as a natural hedge where space will allow in larger, partially shaded to sunny landscape and woodland borders. Vigorous, heat and cold tolerant (-20F), and extremely showy, this glorious beauty will always have you looking forward to spring!
Landscape & Garden Uses
Growing in a dense mound 3 to 4 feet tall and 4 to 5 feet wide, the Holden Rhododendron is ideal for use as a specimen in smaller spaces or in groupings or as a colorful natural hedge in sunny to partially shaded landscape and woodland borders. That said, in hot climates we always suggest some filtered sun or shade during the midafternoon hours. A fine accent or grouping in home and building foundations. Does especially well on fertile embankments, hillsides and slopes. Can be grown in large pots. A fine addition to pink theme gardens, rhododendron and azalea gardens, Asian or zen gardens, and woodland gardens.
Suggested Spacing: 4 feet apart for solid hedges; 8 feet or more apart for space between plants
Growing Preferences
When it comes to success growing Rhododendrons, a little good advice goes a long way. When planted right and in the right spot, Rhododendrons are very easy to grow and care for.
Rhododendrons thrive in a moist but well-drained acidic soil that is rich in organic matter and part shade; preferable morning sun with afternoon shade or heavily filtered sun. All day dappled shade is fine as well. Keep in mind that whether growing in the ground or in containers, constantly soggy or wet soil is problematic for Rhododendrons, and most other plants for that matter. Some soils, such as heavy clay, quick-draining sand, or otherwise poor soils, might need to be amended to provide sufficient nutrients, better soil drainage, and/or moisture retention. In containers, select a pot with a drainage hole(s) and use a 50/50 blend of professional potting mix and potting soil. Avoid using any native soil in pots. Feed Rhododendrons after they bloom with an acid-loving formula such as an Azalea, Camellia & Rhododendron Food.
Helpful Articles
Click on a link below to find helpful advice from our experts on how to plant and care for Rhododendrons.
How To Plant A Rhododendron
How To Fertilize & Water A Rhododendron
How To Prune A Rhododendron
Plant Long & Prosper!
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I ordered (3) 1 gallon Holden rhododendrons. They arrived promptly, securely packed and in excellent condition. They are already sprouting new growth and they look extremely healthy. I am very impressed and pleased with these plants and the care that Wilson Bros. takes with their shipping.—————————————————We are so glad you are pleased and we hope you enjoy them for years to come! Thanks for the kind words and great review! 🙂 Beth Steele | WBG























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