6 to 7 feet
→ 72 to 84 inches
However, the first fact states a spread of 4 to 6 feet (48–72 inches), and the second states a maximum spread of 1.5m (59 inches). These values conflict.
But the question asks for a **single** concise statement. The spread in feet is inconsistent (4–6 ft vs. 1.5m), and 1.5m is a maximum, not a range.
The 4–6 ft range (48–72 inches) is a full range, while 1.5m is a single value. Since 1.5m (59 inches) falls within 48–72, and the 4–6 ft range is more comprehensive and directly stated, we use that.
Final answer: **48 to 72 inches**
Growth Rate
Moderate
Appearance
Bloom Color
Yellow, orange, and white
Foliage Color
Green with bluish silvery undertones in spring and yellow in fall
Fall Foliage Color
Yellow
Environment
Hardiness Zones
Zones 7a-10a
Sunlight Requirements
Partial Shade (with tolerance for Full Sun)
Soil Type
Moist, well-drained, humus-rich soil with a preference for clay content and loamy or sandy components.
Soil Drainage
Well-drained, with a preference for clay or sandy components to maintain moisture without waterlogging.