
Light Needs

Mature Height

Mature Spread

Growing Zones
Holden's Solar Flare Rhododendron delights the eye with eye-catching yellow blooms set against glossy dark green leaves. The red-tinged buds open to creamy, lightly golden petals highlighted by a subtle crimson throat, creating a playful contrast. This compact shrub reaches around three to four feet tall and wide, making it handy for smaller landscapes, foundation beds, or statement containers. Unlike many other rhododendrons, it offers an extended display, with richly colored buds that remain ornamental even before they fully open.
In addition to its unforgettable blooms, Holden's Solar Flare stays a manageable size, thriving in partial shade and acidic, well-draining soil. Its foliage remains evergreen, ensuring off-season appeal. Bred in northern Ohio, this rhododendron promises durability and rarely develops any pest or disease issues. Plus, it welcomes local pollinators that feast on its nectar-rich blossoms. Use it to bring layering interest to woodland gardens, line a walkway with pretty spring displays, or accent patio containers with cheerful color and texture.
Holden's Solar Flare Rhododendron Care
Plant this rhododendron in a spot with dappled morning sun and protection from harsh afternoon rays. Keep the soil consistently moist yet never waterlogged, adding a thick layer of organic mulch to help retain moisture. A slightly acidic soil, typically in the range of pH 5.0 to 6.0, is recommended for vigorous growth. Lightly fertilize in early spring with a formulation suitable for acid-loving species, following the manufacturer’s directions. Regular inspection ensures quick response to any pests or minor issues, although this hardy shrub typically remains trouble-free.
When it comes to pruning, Holden's Solar Flare rarely needs drastic shaping. If spent blooms remain, removing them after flowering helps direct energy back into the foliage and next year’s buds. In containers, light thinning of older or damaged branches each year keeps the shrub looking tidy, and covering the root zone with mulch or wrapping containers during icy conditions can protect against winter damage.
Holden's Solar Flare Rhododendron Spacing
For mass plantings or informal hedges, place these rhododendrons about three feet apart. This spacing allows their rounded shapes to fill in neatly without crowding. For single accents or container growth, choose pots several inches wider than the root ball, allowing ample room for root expansion and ensuring continued health and vigor.
Holden's Solar Flare Rhododendron Information
USDA Hardiness Zones: 5 - 9 |
Plant Type: |
Light Exposure: Full Shade to Partial Shade (0 - 4 Hours Of Direct Sunlight) |
Mature Height: 3 - 4 Feet |
Mature Spread: 3 - 4 Feet |
Spacing: 3 - 4 Feet |
Habit: Mounded |
Flower Color(s): Orange, Yellow |
Flower Description: Orange, Yellow |
Bloom Period: Late Spring |
Foliage Type: Evergreen |
Foliage Color(s): Green |
Foliage Description: dark green |
Seasonal Interest: Spring Flowering, Fall Interest, 3 Season Interest |
Watering: Moderate,High water needs |
Resists: Deer, Rabbit |
Tolerates: Heat |
Attracts: Bees, Birds, Butterflies |
Container Role: Thriller |
Uses: Borders, Combinations, Containers, Hedges & Privacy, Mass Planting, Specimen or Focal Point, Sensory Gardens, Wildlife Gardens |
Features: Attracts Pollinators, Deadheading Not Necessary, Foliage Interest, Low Maintenance, Native to North America |
Brand: |
Common Name: Holden's Solar Flare Rhododendron |
Other Name(s): Rhododendron 'Solar Flare |
Scientific Name: Rhododendron 'Holden's Solar Flare' |
- SKU:
- 1231007221-pc
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
All bushes, perennials & trees come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.