A California sycamore's main root can burrow 10 feet deep, and its other roots are aggressive. They've been known to harm sidewalks, pipes, septic systems, and building foundations.

Firefighters in San Luis Obispo County are battling what is currently the largest wildfire in California so far this year.

The California sycamore matures much earlier, so you should collect its seeds during fall. Collecting Sycamore Seed for Planting . NatureServe / Flickr / CC BY 2.0.