Tuliptree
Liriodendron tulipifera
Magnoliaceae · deciduous tree · native
You recognize Tuliptree by its unique cat-face-shaped leaves and bright yellow tulip-like flowers appearing in late spring. This fast-growing native reaches 80-120 feet with a tall, columnar form and smooth gray bark. The fall foliage turns yellow-green to golden, and winged seeds disperse by wind in autumn.
Tuliptree thrives in deep, moist, well-drained soils in full sun to partial shade. This vigorous tree establishes quickly but appreciates consistent moisture during establishment. Light shaping pruning controls form when young. Monitor for relatively few pest problems in PNW conditions. The rapid growth and graceful form make it valuable as a specimen or shade tree in appropriate landscapes.
Quick Facts
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 |
| Fall color / leaf senescence BBCH 93 | Oct 1-Nov 15 |
| Dormancy BBCH 97 | Nov 15-Feb 28 |