Butternut
Juglans cinerea
Juglandaceae · broadleaf deciduous tree · introduced
Last updated
Plant Profile
Size & Form
Height
100 ft
Spread
65 ft
Growth Rate
Fast
Size at 20 yr
20 ft
Lifespan
Short-lived
Site Requirements
Light
Full Sun
Soil Drainage
Well Drained
Soil pH
6.0-7.0
Water
Moderate
Drought Tolerance
Low
Hardiness
Zones 3a–8b
Ornamental Interest
Bloom Time
May to June
Fall Color
Yellow
Origin
eastern North America, from New Brunswick to Georgia and
Watch for this season
Fall webwormHigh
Larval Feeding & Web Building
Phytophthora Root RotModerate
Growing Season Stress Expression
Crown GallMonitor
Dormant in Soil
Diseases: Regionally Documented (10)
Geosmithia morbida (vectored by Pityophthorus juglandis) Thousand Cankers Disease Xanthomonas arboricola pv. juglandis Walnut Blight Blackline virus Blackline Ophiognomonia leptostyla (syn. Gnomonia leptostyla) Anthracnose Blotch Black Walnut Toxicity Rhizobium radiobacter (formerly Agrobacterium tumefaciens) Crown Gall Pseudomicrostroma juglandis (syn. Microstroma juglandis) Downy Leaf Spot Mosses and Lichens Phytophthora spp. (P Phytophthora Root Rot Pratylenchus penetrans (primary) and P Nematode, Root-lesion
Pests: Regionally Documented (6)
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 | Sep 1-Nov 30 |
| Fruit/seed maturity BBCH 85 | Dec 1-Feb 28 |
| 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.