The Q&A Archives: Cornus Florida "Rosea" - Planting and care.

Question: I planted a four to five foot Cornus florida

Answer: Dogwood trees are shallow rooted and require an acidic soil that is humusy and evenly moist yet well drained. The soil should be slightly damp but never saturated or sopping wet. Their roots need air in addition to moisture, so you may want to reduce the mulch layer to a two to three inch depth rather than three to four inches. I would suspect some transplant shock and the summer heat wave are contributing to the dry edges on the leaves, however either over or underwatering could also cause foliage symptoms. To know if you need to water, dig into the soil with your finger. If it is still damp do not water yet. When you do water, water thoroughly at ground level to moisten the entire root area. Then wait until it begins to dry before you water again. Dogwoods can be affected by several disease problems that can cause foliage problems, and overfertilizing can also cause foliage symptoms, so you might also want to check with your county extension and/or your professionally trained nursery staff just to be sure there is nothing amiss. Good luck wiht your tree!

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