Cucumber Magnolia
Magnolia acuminata
Magnoliaceae · broadleaf deciduous tree · introduced
Last updated
Plant Profile
Size & Form
Height
50–80 ft
Spread
32 ft
Growth Rate
Fast
Size at 20 yr
40 ft
Lifespan
Moderate
Site Requirements
Light
Sun to Part Shade
Soil Drainage
Wet Tolerant
Soil pH
5.2-7.0
Water
High
Drought Tolerance
Moderate
Hardiness
Zones 3a–8b
Ornamental Interest
Bloom Time
April to May
Fall Color
Yellow
Origin
from New York to Georgia, west to Illinois and Arkansas
Watch for this season
Damping-offHigh
Seedling Emergence - Postemergence Damping-off Risk
Powdery MildewHigh
Active Conidial Spread
Root Colonization Period
SlugHigh
Winter-Spring Feeding
+ 1 more — see full disease and pest lists below
Diseases: Regionally Documented (24)
Alternaria spp. Alternaria Leaf Spot Pseudomonas syringae pv. syringae (bacterial form, most c... Angular leaf spot Corynebacterium sepedonicum Bacterial Wilt Thielaviopsis basicola Black Root Rot Cucumber mosaic virus Cucumber mosaic virus Beet curly top virus Curly Top Several soilborne Damping-off Multiple obligate oomycetes (Peronosporaceae); species ar... Downy Mildew Fusarium Crown and Foot Root Fusarium oxysporum Fusarium Wilt Stagonosporopsis cucurbitacearum (syn. Didymella bryoniae) Gummy Stem Blight (Vine Decline) Pollination failure Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Phytophthora syringae Root and Stem Rot Symptom category — not a single disease Root Rot Scab (Gummosis) Sclerotinia Stem Rot (White Mold) [VERIFY] (specific agent unclear) Toxic Cucumber Verticillium dahliae Verticillium Wilt Blueberry mosaic virus and related viruses Virus Diseases Pseudomonas syringae pv. syringae Bacterial Blight Symptom category — not a single disease Leaf Spot Root and Cutting Rots Meloidogyne hapla Nematode, Root-knot
Pests: Regionally Documented (5)
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 | Apr 1-Apr 30 |
| Bloom end / petal fall BBCH 69 | Apr 15-May 15 |
| Fruit/seed development BBCH 71 | Mar 15-May 31 |
| Fruit/seed maturity BBCH 85 | Jun 1-Aug 31 |
| 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.