Sawtooth Oak
Quercus acutissima
Fagaceae · broadleaf · introduced
Quick Facts
Height
40–60 ft
Spread
49 ft
Growth Rate
Fast
Light
Full Sun
Soil
Adaptable
Water
Moderate
Hardiness
Zone Zones 6a–9b
Bloom Time
March to April
Origin
Japan, Korea, and China, and Himalayas
Phenological Calendar
| 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 | 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 |
Diseases (14)
Phytophthora ramorum Sudden Oak Death
Arceuthobium spp. (parasitic plant) Mistletoe
abiotic (drought, heat stress) or bacterial (Xylella fast... Leaf Scorch
Armillaria ostoyae Armillaria Root Rot
Various species including Colletotrichum acutatum, C Anthracnose
Cytospora canker Cytospora Canker
Microstroma album Frosty Mildew
Ganoderma applanatum Ganoderma Root and Butt Rot
Pseudoinonotus dryadeus Inonotus Root and Butt Rot
Taphrina spp. Leaf Blister
Phoradendron villosum Mistletoe (a True Mistletoe)
Neonectria ditissima Nectria Canker
Podosphaera aphanis var. aphanis Powdery Mildew
Inonotus dryophilus White Pocket Rot (Piped Rot)