Garden Scheme
Plant library · Ornamental & Flowering Trees
Cornus florida
Flowering dogwood is a small, deciduous understory tree that brings showy bracts in mid to late spring, followed by red fruit that draws birds in fall. Reaching about 25 feet tall and wide, it has enough presence for a focal point without taking on the scale of a large shade tree. Its pollinator-friendly bloom and native character suit woodland-edge planting, layered borders, and lightly shaded garden rooms.
Space Flowering Dogwood 20 ft apart, measured center to center (6.1 m).
The mature spread is about 25 ft (7.6 m), so plants set at that distance grow together into a closed canopy.
Treat 20 ft as a planning baseline — cultivar and local growing conditions shift the final footprint.
Compare with the full ornamental and flowering tree spacing chart
Set flowering dogwood where it receives partial shade, especially beneath an open canopy or on the gentler light side of a building. Use it as a single specimen near a patio, seating area, or path where the spring display can be enjoyed without placing the trunk in a narrow circulation zone. Keep the area beneath and around the branches open enough for the tree’s canopy to develop as a distinct layer above lower plantings.
Plant trees 20 feet apart, center to center, when repeating them along a border or woodland edge. A mature canopy can reach roughly 25 feet across, so that spacing allows neighboring crowns to approach and eventually overlap rather than remain fully separate. For one tree, reserve a broad circle clear of walls, fences, and other woody plants; avoid squeezing it into a bed that is only a few feet deep.
Choose a well-drained site with regular moisture and soil that is acidic to neutral, preferably with organic matter. A 2- to 4-inch mulch layer can help hold moisture and moderate summer root-zone temperatures; keep mulch pulled back from the trunk. In hotter or more exposed settings, afternoon shade gives the tree a more sheltered position than an all-day sun bed.[1][2]
The spring bracts appear before the foliage, so give the tree a visible backdrop rather than burying it behind taller evergreen screening. Red fruit extends the display into fall and supports bird activity, while deciduous leaf drop opens the planting area for winter light. Allow for this changing seasonal canopy when locating shade-tolerant plants nearby.[1]
Avoid highly confined, heavily urbanized positions where roots and canopy have little room and the site is exposed to reflected heat or stress. This species can face recurring disease issues, so leave generous air space around the canopy and avoid crowding it into a dense hedge or tightly packed tree grouping. Reserve its 20-foot planting interval for places where it can remain a small tree rather than being repeatedly cut back.[1]