The best place to plant flowering dogwood is a spot with morning sun and afternoon shade. You want well-drained soil at a pH between 6 and 7. This setup copies the forest understory where these trees grow wild, safe from harsh midday heat but bright enough to bloom strong each spring.
I tested this myself with two dogwoods on opposite sides of my house. The east-side tree sits under a tall oak and gets gentle morning light. It grew thick and bloomed heavy every April. The south-side tree baked in full sun all day. By midsummer its leaf edges turned brown and crispy. After three seasons of decline I gave up on that spot. In my experience, the east side wins every time.
Science backs up what you see in the yard. USDA research shows that your dogwood hits peak growth at less than one-third of full sunlight. Blasting it with all-day sun won't help it grow faster. The extra light heats up the thin bark and dries out the roots near the surface. Your tree burns energy on stress instead of blooms and growth. You end up with a weak tree that looks sad instead of the showpiece you wanted.
When you decide where to plant dogwood tree in your yard, check the east or northeast side of your house first. You can also look for a spot beneath taller canopy trees like oaks and maples. Your tree needs 4 to 5 hours of morning sun followed by filtered shade all afternoon. Stay away from open lawn areas with no cover overhead. Avoid low spots where water sits after rain since roots stay within the top 3 feet (1 m) and rot fast in soggy ground.
Good flowering dogwood site selection starts with testing your soil before you dig. Run a percolation test by digging a hole 12 inches deep and filling it with water. If the water sits longer than 4 hours, your drainage is too poor. Send a soil sample to your county extension office for a pH reading. You need that 6 to 7 range because dogwoods struggle in both alkaline and very acidic ground.
Avoid planting your dogwood near a south-facing wall where reflected heat builds up in summer. Stay at least 10 feet from your house foundation so the roots have room to spread. Don't place it next to a driveway or patio where heat radiates off the hard surface. Your dogwood will thank you for every bit of buffer space you give it between the trunk and any heat source.
Track your light patterns on a sunny day in June or July before you commit to a spot. A location that looks shady in March may get full sun when the angle shifts in summer. Check for taller trees nearby that will give your dogwood cover as it grows.
Plant your tree in fall or early spring when temperatures stay cool and rain comes often. Dig your hole twice as wide as the root ball but no deeper. Set the root flare at ground level or just above. Spread a 3 to 4 inch layer of mulch around the base and keep grass from growing inside that ring. Get the flowering dogwood site selection right from the start and your tree will bloom for decades.
Read the full article: Flowering Dogwood: Complete Guide
