Light Needs
Mature Height
Mature Spread
Growing Zones
The Blue Sunset Hydrangea is a heavy bloomer that features large, cloud-like flower clusters. This reblooming cultivar pushes out striking blooms from late spring until midsummer for a continuous and showy display. The mophead flowers are a medium blue hue and will have hints of pink or white based on the soil pH. The flowers are complemented by large glossy green foliage with serrated edges.
Use this rounded, upright, deciduous shrub in borders, mass plantings, or landscapes. The beautiful blooms make excellent cut flowers or leave the blooms in place to attract butterflies. This lovely plant is low maintenance and grows as a perennial in USDA zones 5 through 8.
Blue Sunset Hydrangea Care
Plant in rich, well-drained soil that should be kept evenly moist. Blue Sunset Hydrangea do best with morning sun and afternoon shade. The soil pH will determine the flower color of the Blue Sunset Hydrangea. Acidic soils produce blue blooms, while a pH of 5.5 or higher will cause the flowers to turn pink.
Fertilize Blue Sunset Hydrangea using an acidic plant food during early spring. This variety blooms on the previous year's growth, so prune after the blooms fade to ensure a prolific blooming season.
Blue Sunset Hydrangea Spacing
This hydrangea will reach 3 to 4 feet tall and wide. Space plants 2 to 3 feet apart to create a consistent mass planting.
Blue Sunset Hydrangea Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 5 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
- Part Shade to Part Sun (3-6 Hours Direct Sun)
- Mature Height
- 3-4 Feet
- Mature Spread
- 3-4 Feet
- Growth Rate
- Moderate
- Growth Habit
- , Mounded
- Water Needs
- Consistently Moist
Flowers & Foliage
- Flower Colors
- , Blue, Pink
- Flower Description
- Deep Blue, Pink
- Bloom Time
- Early to Mid-Summer
- 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
- Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Summer Flowering, 3 Season Interest
Garden Benefits
Plant Overview
- Common Name
- Blue Sunset Hydrangea
- Botanical Name
- HYDRANGEA M 'BLUE SUNSET' - FORCED
- 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!