Quercus coccinea

The foliage of Quercus coccinea is sharply sculpted and unmistakable. Leaves are typically 3–7 inches long with 7–9 deeply incised lobes, each lobe ending in a fine bristle tip characteristic of the red oak group. The sinuses (the spaces between lobes) are broad and rounded but cut dramatically inward—often nearly to the midrib—giving the leaf a bold, open architecture.

In summer, the upper surface is deep, lustrous green, smooth and faintly leathery to the touch, catching light with a subtle sheen. The underside is noticeably paler, sometimes with slight tufting along the veins in youth. Petioles are slender and often flushed reddish, adding quiet tonal contrast when viewed up close.

Autumn is where the foliage transforms from handsome to unforgettable. In full sun and acidic soils, leaves turn a clear, saturated scarlet to crimson-red, often holding color well before falling cleanly. Unlike some red oaks that trend toward russet or bronze, Scarlet Oak frequently achieves a purer red, especially in upland conditions where it naturally thrives.

The overall leaf effect is crisp, angular, and architectural—more deeply cut and dramatic than many other native oaks.

Acorns

The acorns of Quercus coccinea are refined and symmetrical, typically ½–1 inch long, oval to egg-shaped, and maturing to a warm chestnut-brown. They sit partially enclosed—about one-third to one-half—in a deep, bowl-shaped cap.

The cap itself is distinctive: composed of tight, flattened scales that create a neat, tiled surface. The rim of the cup is smooth and even, without the fringed or bristled appearance seen in some oak species. When mature, the nut detaches cleanly from the cap.

As a member of the red oak group, Scarlet Oak acorns require two growing seasons to mature. They are moderately bitter due to higher tannin levels compared to white oak species, yet still serve as an important food source for wildlife. Squirrels, deer, wild turkey, blue jays, and numerous small mammals rely on them in autumn and winter.

Visually, the acorns are proportionate and understated—never oversized, but produced reliably when trees reach maturity. Against the glossy green summer foliage or beneath a scarlet autumn canopy, they complete the seasonal narrative of the tree: structure in summer, fire in fall, sustenance in winter.

Together, the deeply cut leaves and neatly capped acorns reinforce the identity of Scarlet Oak as both a botanical classic and an ecologically generous native canopy tree.

• Habit: Pyramidal in youth, broadening to a rounded, open crown
  
• Size: 60–80 feet tall; 40–50 foot spread
  
• Light: Full sun for best structure and fall color
  
• Soil: Prefers well-drained, acidic soils
  
• Tolerance: Excellent drought tolerance once established
  

Its youthful habit is reminiscent of Quercus palustris, with a strong central leader and tiered branching. Over time, the crown opens and gains breadth without losing refinement.