The Q&A Archives: Proper Spacing

Question: I am considering two tree choices, and would like to know the best
spacing for planting (hoping to create a privacy screen along a
busy street). Please provide the proper spacing for:

Lagerstroemia 'Tuscarora' - the nursery tag says spread is 8 to 12 feet, some articles say the width is 15 feet

Chinese Pistache - the nursery tag says the spread is 35 to 40 feet; some articles say the width is 20-35 width.

I look forward to your valued recommendations. Thank you in advance!
Terri Sutak

Answer: The differences you've found in average height and width have to do with growing conditions. In your California garden, and given reasonable care, you can expect both trees to reach their maximum mature height and width. In that case, you can plant Lagerstroemia on 8' centers to provide dense growth; Chinese Pistache at about 20' apart for a thick screening canopy.

Best wishes with your landscape!

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