Crape myrtle Natchez
Lagerstroemia x Natchez
Lythraceae · [VERIFY] · introduced
Last updated
Lagerstroemia hybrids (Lythraceae) are crosses between L. indica and L. fauriei (Japanese crape myrtle) developed primarily at the U.S. National Arboretum. These deciduous trees combine the showy summer flowers and fall color of L. indica with the superior bark character, vigor, and powdery mildew resistance of L. fauriei. Mature sizes range from 10 to 30 feet depending on the selection.
Hybrid crape myrtles perform best in full sun on moist, well-drained soil. Their exfoliating bark reveals cinnamon-brown to pale cream mottled trunks, providing strong winter interest. Fall color includes shades of orange, red, and yellow. Key cultivars include 'Natchez' (white flowers, 25 feet, outstanding bark), 'Muskogee' (lavender-pink, 20 feet), 'Acoma' (white, 10 feet, semi-dwarf), and 'Zuni' (lavender, 15 feet). All are documented as mildew resistant. Hardy in Zones 6 to 7.
Quick Facts
Phenological Calendar
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of Mar 30, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 1,116 | Pre-season | Beginning of flowering | 5,187 |
| Seattle / UW | 1,112 | Pre-season | Beginning of flowering | 5,191 |
| Olympia / Tumwater | 1,049 | Pre-season | Beginning of flowering | 5,255 |
| Kent / Auburn | 1,048 | Pre-season | Beginning of flowering | 5,255 |
| Bellingham / Whatcom | 1,041 | Pre-season | Beginning of flowering | 5,262 |
| Tacoma / Puyallup | 1,017 | Pre-season | Beginning of flowering | 5,286 |
| Sequim / Rain Shadow | 1,012 | Pre-season | Beginning of flowering | 5,291 |
| Stage | GDD32 | Typical Window |
|---|---|---|
| ○ Beginning of flowering BBCH 61 NEXT | 6303 | — est. Oct 9 (avg) |
| Full bloom BBCH 65 | 7328 | — |
GDD = Growing Degree Days (base 32°F, Jan 1 start). Why base 32? Source GDD₅₀ thresholds from Herms 2004 (OSU, Secrest Arboretum, Ohio) and UMD IPMnet (Gill & Klick, mid-Atlantic), converted to GDD₃₂ via Kent bloom-date mapping. Season tracker for Kent / Auburn as of Mar 30, 2026. Predicted dates use 16-day weather forecast through Apr 15, 2026, then climate normals.