
Light Needs

Mature Height

Mature Spread

Growing Zones
The Stewartstonian Azalea is a broadleaf evergreen shrub that provides year-round visual interest and thrives all the way up in zone 5. Bright, red-orange trumpet-shaped flowers bloom in the spring. Glossy, deep-green foliage provides a nice contrast against the flowers. By fall, the leaves turn a reddish-chocolate hue. Old leaves drop during the winter but will be replaced by mahogany-colored foliage in the spring. This is a slow-growing plant that will be covered in flowers during the spring.
Feature this Azalea in an area where the lovely springtime blooms will be on full display. This stunner is good to feature in a bed, border, or mass planting. At 5 to 6 feet tall and with an upright growth habit, this shrub can make a beautiful hedge or privacy screen. The bold red flowers are a draw for hummingbirds and butterflies. The Stewartstonian Azalea grows as a perennial in USDA zones 5 through 8.
Stewartstonian Azalea Care
The Stewartstonian Azalea is a medium-care plant. Select a good site and mind the soil for best results, but know that this plant does need some help to thrive. Plant this shrub in full sun to partial shade. The Stewartstonian Azalea can take on the full sun in northern areas but will require more shade in southern regions. The soil quality is important for this Azalea cultivar. Use rich, acidic soil that is moist but still allows drainage. Water about one inch per week, taking care to ensure the soil does not dry out. Apply a layer of mulch around the base of the plant to help hold in the moisture.
Applying organic mulch can help feed the plant and support healthy growth or use a balanced fertilizer in the spring. More advanced gardeners may want to test the soil and apply an acidic fertilizer if the soil pH is too high. Remove dead growth as needed and shape the shrub after the blooms fade away.
Stewartstonian Azalea Spacing
This shrub is an upright, spreading Azalea with woody stems. The Stewartstonian Azalea will grow 5 to 6 feet tall and 4 to 5 feet wide. Plants can be grown 2 to 3 feet apart to create a hedge or allow more space so that this beauty will be a focal point.
Stewartstonian Azalea Information
USDA Hardiness Zones: 5 - 8 |
Plant Type: Bushes |
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight) |
Mature Height: 5 - 6 Feet |
Mature Spread: 4 - 5 Feet |
Spacing: 4 - 5 Feet |
Habit: Mounded, Upright |
Flower Color(s): Red |
Flower Description: Bright Red |
Bloom Period: |
Foliage Type: Evergreen |
Foliage Color(s): Green |
Foliage Description: Dark Green |
Seasonal Interest: Spring Flowering, Summer Flowering, Fall Flowering, Winter Interest, 4 Season Interest |
Watering: Average |
Resists: Disease, Pests & Insects |
Tolerates: Drought |
Attracts: Bees, Butterflies, Hummingbirds |
Container Role: |
Uses: Wildlife Gardens |
Features: Attracts Pollinators, Low Maintenance, Native to North America |
Brand: |
Common Name: Stewartstonian Azalea |
Other Name(s): |
Scientific Name: AZALEA `STEWARTSTONIAN` |
- SKU:
- 1231000010-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.
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: Idaho, 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!