Plant Name: Western Catalpa
Scientific Name: Catalpa speciosa — Western Catalpa, Northern Catalpa, Cigar Tree
Mature Height: 40 ft
Mature Spread: 40 ft
Growth Rate: Moderate to fast (1–2 ft/year)
Sun: Full sun to partial shade
Water: Moderate; 5–10 gal per watering while establishing, 2–3 times/week during hot, dry weather; once established, 15–25 gal per watering every 1–2 weeks during dry periods
Foliage: Very large, heart-shaped, bright green leaves; deciduous
Fall Color: Yellow to yellow-brown
Flower Color: White with yellow markings and purple spots inside
Bloom Time: Late spring to early summer
Fruit: Long, narrow, cigar-like seed pods, approximately 8–20 in. long, turning brown when mature
Hardiness Zones: 4–8 (−30°F to 20°F)
Features: Broad shade canopy; showy, fragrant flowers; large tropical-looking leaves; adaptable to alkaline soils; attractive specimen tree
Additional Facts: The Prescott Area Plant List gives a typical mature size of approximately 40 ft tall × 40 ft wide. Western Catalpa tolerates a range of soil conditions but grows best in deep, well-drained soil with adequate moisture. Its large leaves and long seed pods can create seasonal litter.