Hino-Crimson Azalea
Rhododendron 'Hino-Crimson'
Ericaceae · broadleaf evergreen shrub · introduced
Last updated
A low, compact, mounding evergreen azalea reaching 2 to 3 feet in 10 years and 3 to 4 feet at maturity, spreading to 3 to 5 feet wide. Small single flowers, 1 to 1¼ inches across, bright crimson red, produced so abundantly that the plant appears solid-colored at peak bloom. Midseason flowering. A Kurume hybrid of R. amoenum crossed with 'Hinode-giri'.
The most intense crimson red available in the Kurume group. Hardy to approximately -10°F (Zone 6a-9a). Part shade to full sun on acidic, well-drained soil (pH 4.5-6.0). Afternoon shade improves bloom longevity and prevents flower fade. Compact enough for edging, mass planting, or container culture. Out of bloom, the fine texture provides a neutral green backdrop. Twenty-one diseases and 15 pests documented at the genus level. All parts contain grayanotoxins and are toxic if ingested.
Quick Facts
Root Colonization (Spring–Fall)
Infection at Bud Break
Apothecia Formation & Spore Release
Aecial Stage (Alternate Host)
+ 13 more — see full disease and pest lists below
Phenological Calendar
| Stage | Typical Window |
|---|---|
| Bud swell BBCH 01-03 | Mar 15-Apr 15 |
| Bloom start BBCH 61 | Apr 15-May 1 |
| Full bloom BBCH 65 | Apr 22-May 10 |
| Bloom end BBCH 69 | May 5-May 20 |
| Bud set BBCH 55-59 | Jul 15-Sep 15 |