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Autumn Lily® Encore® Azalea
Rhododendron 'Roblex' PP25073
Autumn Lily® is the white azalea I reach for when someone wants a clean, classic foundation look—but they also want color that doesn’t quit after spring. It’s cold-hardy for an Encore®, holds deep green evergreen foliage, and can rebloom in waves when given a bright spot and comfortable roots. Keep it evenly moist in year one, mulch it like you mean it, and do your shaping right after the spring flush, and it’ll stay upright, dense, and dependable.
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Cold-Hardy Reblooming White Azalea With Evergreen Curb Appeal
Pure White Blooms That Return Beyond Spring
Autumn Lily® Encore® Azalea brings a bright, clean look to the landscape with showy white blooms that feel crisp and classic in any design style. You’ll see a strong spring flush, then additional bloom cycles can appear through summer and into fall when the plant receives enough light. That extended bloom window is the difference between a “spring-only” azalea and a shrub that keeps your beds looking fresh for months.
White is also the easiest color to design with. It lifts darker foundation plantings, pairs beautifully with evergreens, and looks stunning against brick, stone, or painted siding. Plant it near an entry, along a walkway where you’ll enjoy the flowers up close, or repeat it in groups so the white blooms read like a continuous ribbon of light across the bed.
Evergreen Structure That Makes Beds Look Finished Year-Round
Even when it isn’t flowering, Autumn Lily® still carries the planting with deep green evergreen foliage and a sturdy, upright habit. That year-round structure is what makes it so valuable for foundation beds and front-yard borders; your landscape keeps its shape and “designed” look in every season, not only during bloom time.
Its strong branching and fuller silhouette make it an excellent choice for mass plantings, property-line accents, and mixed borders where you want evergreen substance behind perennials. It can also be trained lightly into a tidy hedge line without becoming fussy. If you’re building a low-maintenance landscape that still looks intentional, this is the kind of shrub that quietly does the work all year.
The Sun-And-Soil Combo That Drives Better Rebloom
Encore® rebloom performs best with bright light, so aim for 4 to 6 hours of direct sun per day. Autumn Lily® can grow in full sun to partial shade, but a brighter site generally produces more repeat bloom. In hotter climates, morning sun with a bit of afternoon shade often hits the sweet spot—strong flowering support with less leaf stress during peak heat.
Root comfort matters just as much as the sun. Provide acidic, well-drained soil and steady moisture during establishment, and you’ll get denser foliage and better bloom performance. A 2–3 inch mulch ring helps keep moisture consistent, cools roots in summer, and gradually improves soil structure. Avoid soggy sites; azaleas thrive when soil drains well but never swings to bone-dry.
Hedge-Ready Performance With Smart Spacing And Pruning Timing
Autumn Lily® has the size and structure to work as a short evergreen hedge or as a bold specimen shrub. The key is spacing: give plants enough room to mature so airflow stays strong and foliage dries quickly after rain. That reduces stress and helps the shrub stay full from top to bottom, rather than thinning out from the inside.
Pruning is simple, but timing is key to protecting flowers. Do your main shaping immediately after the spring bloom flush to encourage branching without removing buds that support later bloom cycles. Keep trimming light and tidy—think “refine and thicken,” not “cut back hard.” With correct spacing and post-spring pruning, Autumn Lily® stays upright, dense, and reliably bloom-ready.
| Hardiness Zone: | 6–9 (often performs into 10 in warm regions) |
|---|---|
| Mature Height: | 4 to 5 Feet |
| Mature Width: | 4 Feet |
| Sunlight: | Full sun to partial shade (best rebloom with ~4–6 hours sun) |
| Bloom Time / Color | Spring with repeat blooms summer/fall; white blooms, occasional faint purple striping |
| Soil Condition: | Acidic, organic-rich, well-drained |
| Water Requirements: | Moderate; keep evenly moist while establishing |
| Wildlife Value | Flowers support pollinators |
| Resistance (deer/disease/drought/etc.) | Deer resistance is variable; good heat tolerance; drought tolerance improves once established |
| Landscape Uses | Foundation beds, borders, mass plantings, low hedges, mixed borders, large containers |
How to Care for Autumn Lily® Encore® Azalea
Be sure to read our planting instructions to ensure a healthy and happy Autumn Lily® Encore® Azalea for years to come!
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How should I plant Autumn Lily® Encore® Azalea?
Plant Autumn Lily® Encore® Azalea in full sun to partial shade in acidic, well-drained soil. Dig a hole 2–3 times wider than the root ball and set the shrub at the same depth it was growing (do not bury the crown). Backfill, water deeply to settle soil around the roots, and apply 2–3 inches of mulch over the root zone, keeping mulch a few inches away from the stems. Avoid low spots where water collects, especially in winter. If you have heavy clay, improve drainage with organic matter and consider planting slightly high or on a gentle mound. Keeping turf and weeds away from the base helps the plant establish faster and supports a fuller evergreen canopy.
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How often should I water Autumn Lily® Encore® Azalea after planting?
Water deeply right after planting, then keep the root zone evenly moist through the first growing season. In most landscapes, that means deep watering 1–2 times per week when rainfall is limited, increasing during hot or windy weather. Slow soakings are best because they hydrate the full root zone and encourage stronger rooting. After establishment, water during extended dry spells to reduce stress that can reduce flowering and dull foliage. Azaleas perform best with steady moisture rather than extremes, so mulch plus deep, occasional watering is usually more effective than frequent light sprinkling.
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When should I fertilize Autumn Lily® Encore® Azalea?
Fertilize in early spring as new growth begins using a slow-release azalea/camellia fertilizer or another acid-forming fertilizer designed for acid-loving shrubs. Apply evenly over the root zone (not against the stems) and water in well so nutrients move into the soil where roots can use them. If your soil is lean, a light feeding right after the spring bloom flush can help maintain vigor and support additional bloom cycles. Avoid heavy late-summer fertilizing so the shrub can harden off properly before cooler weather.
When and how should I prune Autumn Lily® Encore® Azalea?
Prune Autumn Lily® Encore® Azalea right after the spring bloom flush. This timing lets you shape the shrub and encourage branching without removing buds that support later bloom cycles. Remove dead or damaged twigs first, then lightly trim the outer growth to maintain an upright, dense form. Avoid hard pruning in late summer or fall, which can reduce rebloom and next season’s flowers. If you want a hedge look, keep trims light and consistent, focusing on tidiness rather than major size reduction.
