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Formosa Southern Indica Azalea
Formosa Azalea produces an abundance of large (3-4") purple flowers in spring that nearly cover large plants reaching 6 to 8 feet in height with an equal spread. More details below

Formosa Southern Indica Azalea

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Formosa Southern Indica Azalea
Rhododendron indica 'Formosa'

USDA Plant Hardiness Zones: 7b-10b Find Your Zone >

Note:  For our customers who live and garden north of USDA Plant Hardiness Zone 5a, where this Azalea variety is not winter hardy outdoors, you can enjoy it in containers that can be moved indoors during winter and placed back outside when temperatures warm up in spring.

Special Attributes

Southern Indica Azalea are very easy to grow because they are more heat and sun tolerant than many other types of Azalea. 'Formosa' is one of the best and one of our favorites of the Southern Indica Azaleas. Loads of large,  3-4" diameter purple flowers in spring nearly cover the large mounding plants.    

Landscape & Garden Uses

Growing in a large mound 6 to 10 feet tall and wide over time, Formosa Azalea is most useful as a natural hedge or in small to large groupings in landscape borders. The plants perform exceptionally well under tall pine trees. Also ideal for use as accents, corner plants or as espalier against large open walls in home foundation plantings. Can also be "limbed up" to form a small tree for containers or garden beds. A fine addition to Azalea gardens and purple-themed color gardens.  

Spacing:  5 to 6' for solid hedges;  12' or more for space between plants

Cultural Preferences

Southern Indica Azaleas are easy to grow. They prefer a moist but well-drained, acidic soil that is rich in organic matter and full sun to part shade. That said, full sun is tolerated however we think they perform and look their best when receiving some filtered sunlight during the hottest part of summer afternoons. When established, plants have good drought tolerance. 

Helpful Articles

Click on the link below to get advice from our experts on how to plant and care for Azaleas.


Plant Details

USDA Plant Hardiness Zones: 7b-10b  Find Your Zone >
Plant Type:  Evergreen Flowering Shrub
Height at Maturity:  6-10'
Width at Maturity:  6-10'
Spacing:  5' for solid hedge; 10'+ for space between plants
Growth Habit / Form:  Dense, Mounding, Upright
Growth Rate:  Moderate
Spacing: 5' for solid hedges - 10'+ for space between plants
Flower Color:  Purple
Flower Size:  Large, 3-3.5"
Flowering Period:  Spring
Flower Type:  Single
Fragrant Flowers:  No
Foliage Color:  Dark Green
Fragrant Foliage:  No
Berries:  No
Berry Color:  NA
Sun Needs:  Full Sun or Mostly Sun, Morning Sun with Dappled or Afternoon Shade, All Day Filtered Sun, Morning Shade with Evening Sun
Water Needs:  Average, Lower when established
Soil Type:  Clay, Loam, Sand (Amended), Silt 
Soil Moisture / Drainage:  Well Drained Moist
Soil pH:  4.5 - 6.5
Maintenance / Care:  Low
Attracts:  Visual Attention
Resistances:  Heat, Humidity, Sun

Plant Long & Prosper!

Questions? Contact Us!

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