Earlier this Spring, we bought a new lilac bush from the local (Lafayette)...

Asked June 28, 2016, 9:18 AM EDT

Earlier this Spring, we bought a new lilac bush from the local (Lafayette) greenhouse and planted it in our back yard. We used potting soil; hole dug proper diameter/depth; watered daily; even put some MiracleGro plant food to help it get started. Now we're seeing some leaf drop, yellowing & brown spots on some of the leaves. We also used some store bought cow manure to fertilize it more. What are we doing wrong?

Boulder County Colorado

1 Response

NEW LILAC BUSHES PROBLEMS

Yellow leaves and brown spots may be indicative of not enough fertilizer- especially nitrogen. Check the nitrogen content of the fertilizer. If necessary, add more fertilizer. Cow manure may have an unknown high salt content.