Light Needs
Mature Height
Mature Spread
Growing Zones
Blue Billow Hydrangea is the reliable bloomer that you have been looking for if you are a Northern gardener. The Lacecap blooms of Hydrangea serrata open slightly later than other varieties to ensure that any late season freezes don’t affect this wonderful variety. Gorgeous indigo blue blooms keep opening all summer with very little maintenance.
Blue Billow Hydrangea is a natural addition to any Cottage Garden planting. The large spread of this variety will fill in areas at the front of the garden and are lovely when planted along a walkway where the delicate flowerheads can be seen up close. Blue Billow has long lasting blooms that make great dried flowers for arrangements all winter long. The serrated leaf shape makes a good contrast to any broadleaf evergreens such as Rhododendron or perennials like Hosta and ferns.
Blue Billow Hydrangea Care
Hydrangeas like to have soil that is well drained and also consistently moist. They will not thrive in dry or drought conditions. A woodland setting is perfect for these showy shrubs. Past sun to part shade keeps the blooms coming all summer. An average loamy soil with an acidic to neutral pH is acceptable. Fertilizing with a well balanced, slow release feed is only needed at the beginning of the spring as growth begins.
Blue Billow has a fantastic deep blue flower that will change color depending on the pH of the soil it is planted in. Acidic soil (4.5 -6.0) will keep the blue true. A pH in the neutral to alkaline zone (7.0 -8.5) will change the flowers a reddish tone, giving them a purple appearance. Using a fertilizer for acid loving plants will help to preserve the indigo hue.
Pruning is only necessary at the end of the blooming period. Carefully, taking care not to remove the buds from next year's flowers. Hydrangea serrata blooms on the previous season's growth.
Blue Billow Hydrangea Spacing
Blue Billow is a low growing spreader. A height of 3-4 feet and width of 5-6 feet make for a great specimen plant. When planting as a group the spacing is recommended at 6 feet on center. This will ensure proper air circulation around the shrub to help keep pests and disease away.
Blue Billow Hydrangea Information
| USDA Hardiness Zones: 5 - 9 |
| Plant Type: Bushes |
| Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight) |
| Mature Height: 3 - 4 Feet |
| Mature Spread: 5 - 6 Feet |
| Spacing: |
| Habit: Mounded |
| Flower Color(s): Blue |
| Flower Description: Light Blue |
| Bloom Period: Early To Midsummer |
| Foliage Type: Deciduous |
| Foliage Color(s): Green, Red |
| Foliage Description: |
| Seasonal Interest: Fall Interest, Winter Interest |
| Watering: Average |
| Resists: Disease, Pests & Insects |
| Tolerates: Drought |
| Attracts: Butterflies, Hummingbirds |
| Container Role: |
| Uses: Wildlife Gardens |
| Features: Attracts Pollinators, Foliage Interest |
| Brand: |
| Common Name: Blue Billow Hydrangea |
| Other Name(s): |
| Scientific Name: HYDRANGEA M.S. `BLUE BILLOW` |
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.
Starting January 1, 2025 all bushes, perennials & trees purchased 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 31th |
| 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.
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: AZ, CA, ID, MT, NV, OR, UT, WA, 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!