Alert: Limited Online Availability

Now that summer is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

Irene Koster Azalea

Azalea 'Irene Koster' (Occidentale hybrid)

SKU
00825
This extremely hardy selection provides a massive display of sweetly scented, funnel-shaped blooms. Buds have dark pink stripes and open to light rose-pink flowers with a showy yellow blotch with brownish orange spotting on the upper petals. Mounding form is excellent for massing in shrub borders. Deciduous.
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5-7

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Full sun, Partial sun

Keep soil moist, but not soggy.

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More Information
Botanical Pronunciationuh-ZAY-lee-uh
Average Size at MaturityModerate growing; reaches 6 to 8 ft. tall, 4 to 6 ft. wide.
Bloom TimeLate Spring
Deciduous/ EvergreenDeciduous
Flower AttributeFragrant, Showy Flowers
Flower ColorPink
Foliage ColorGreen
Garden StyleAsian/Zen, Cottage
Growth RateModerate
Landscape UseBorder, Container, Hedge, Privacy Screen
Light NeedsFull sun, Partial sun
Special FeatureNorth American Native Selection
Water NeedsModerate
Watering NeedsKeep soil moist, but not soggy.
Companion PlantsDogwood (Cornus); Astilbe (Astilbe); Viburnum (Viburnum); Rose Of Sharon (Hibiscus); Coral Bells (Heuchera)

Thrives in humus-rich, acidic soils with excellent drainage. Best in bright shade in hot southern zones. Shelter from drying winds. Water deeply, regularly during first growing season to establish an extensive root system; once established, maintain evenly moist soil. Keep roots cool with a layer of mulch. Feed with an acid fertilizer after bloom.

This Plant's Growing Zones: 5-7

USDA Cold Hardiness Zone Map

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