Light Needs
Mature Height
Mature Spread
Growing Zones
Blue Baron Rhododendron isn’t your typical flowering shrub! It adds a distinctive, exotic look to any landscape, sporting vivid, blue-violet, spectacular blooms that create a head-turning display from April to early May.
With a lovely, compact, rounded form, Blue Baron creates year-round interest with its overall good looks. It has elongated, oblong, 2”, glossy, dark-green foliage that can change to a reddish bronze hue during winter. Hardy in zones 6-8, this blue-violet flowering evergreen slowly reaches heights of 4 feet with an equal spread, so this shrub can be planted en masse for an even more stunning landscape effect.
Blue Baron Rhododendron Care
Blue Baron Rhododendron benefits from being planted in a relatively sheltered location. Plant this beauty in rich, well-drained, loamy soil that maintains even moisture. Blue Baron Rhododendrons grow well in soils that have a slightly acidic pH, so be sure to add plenty of organic matter, compost, or sphagnum peat moss upon planting if you have more alkaline, clay soil. After planting, you can add a thick layer of natural wood chips, pine needles, or shredded oak leaves as a top dressing; the mulch will protect the roots and help maintain soil moisture. Blue Baron should be planted in a partial sun location where it is protected from drying winter winds as well as harsh direct afternoon sun.
Remove any spent flowers after the bloom cycle. Blue Baron is a slow-growing evergreen shrub that can be pruned to maintain a specific size and shape immediately after it finishes blooming in spring. It performs best if you allow it to grow naturally as a compact, mounding shrub, pruning only to remove any crossing or damaged branches.
Blue Baron Rhododendron Spacing
Blue Baron Rhododendron naturally has an open, multi-stemmed, mounding growth habit if not pruned to a specific shape. Due to its compact height and width, it can be used as an accent shrub in a mixed border, or planted in groups of 3 or more for a dynamic visual effect. Space each shrub 4 ft. apart.
Blue Baron Rhododendron Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 6 to 8 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Full Shade to Part Sun (0-6 Hours Direct Sun)
- Mature Height
- 3-4 Feet
- Mature Spread
- 3-4 Feet
- Growth Habit
- , Upright
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Blue
- Flower Description
- Blue
- Bloom Time
- Mid to Late Spring
- Blooms On
-
Old Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Right after flowering
- Foliage Color
- , Green
- Foliage Description
- Reddish-Bronze
- Foliage Type
- , Evergreen
- Seasonal Interest
- , Spring Flowering
Garden Benefits
Plant Overview
- Common Name
- Blue Baron Rhododendron
- Botanical Name
- Rhododendron X 'Blue Baron'
- Plant Type
- Shrub
Simple Plant Spacing Calculator
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
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Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!