American Sycamore
Platanus occidentalis
Platanaceae · broadleaf · introduced
Quick Facts
Height
100 ft
Spread
98 ft
Growth Rate
Fast
Light
Sun to Part Shade
Soil
Wet Tolerant
Water
High
Hardiness
Zone Zones 4a–8b
Bloom Time
April
Origin
from Maine to Ontario and Minnesota and south to Florida
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 | Mar 15-May 15 |
| Bloom end / petal fall BBCH 69 | Apr 15-May 31 |
| 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 |