American Euonymus
Euonymus americanus
Celastraceae · broadleaf deciduous shrub · introduced
Last updated
Plant Profile
Size & Form
Height
4–6 ft
Spread
4-6 ft
Growth Rate
Moderate
Size at 20 yr
8 ft
Lifespan
Moderate
Site Requirements
Light
Sun to Part Shade
Soil Drainage
Wet Tolerant
Soil pH
5.0-6.0
Water
High
Drought Tolerance
Moderate to high
Hardiness
Zones 5a–8b
Ornamental Interest
Bloom Time
May to June
Fall Color
Red, yellow
Origin
New York to Florida, west to Texas
Watch for this season
Powdery MildewHigh
Active Conidial Spread
AphidHigh
Peak Population & Dispersal
SlugHigh
Winter-Spring Feeding
Anthracnose (Shade Trees)Moderate
Active Infection & Secondary Spread
+ 3 more — see full disease and pest lists below
Diseases: Regionally Documented (8)
Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Rhizobium radiobacter (formerly Agrobacterium tumefaciens) Crown Gall Pseudomonas syringae pv. syringae Bacterial Blight Discula destructiva (dogwood), Kabatiella and Discula spp... Anthracnose Raspberry bushy dwarf virus and related viruses Virus Ramularia grevilleana Common Leaf Spot Gray Mold Phytophthora fragariae var. fragariae Red Stele
Pests: Regionally Documented (11)
Unaspis euonymi Euonymus scale Aphidoidea Aphid Halyomorpha halys Brown marmorated stink bug Noctuidae Cutworms and Armyworms Tortricidae Leafroller Tetranychidae Spider mite Otiorhynchus spp. Root weevil Gastropoda Slug Cercopidae Spittlebug Drosophila suzukii Spotted-wing drosophila Pulvinaria floccifera Cottony camellia scale
Phenological Calendar
View full calendar (8 stages)
| Stage | Typical Window |
|---|---|
| Bud break BBCH 07 | Feb 15-Mar 15 |
| Leaf emergence BBCH 11 | Mar 1-Apr 1 |
| Bloom start BBCH 61 | May 1-May 31 |
| Bloom end / petal fall BBCH 69 | May 15-Jun 15 |
| Fruit/seed development BBCH 71 | Jun 1-Aug 31 |
| Fruit/seed maturity BBCH 85 | Sep 1-Nov 30 |
| Fall color / leaf senescence BBCH 93 | Oct 1-Nov 15 |
| Dormancy BBCH 97 | Nov 15-Feb 28 |
Data Maturity Structured Multiple sources. Expert review underway.