Reblooming weigela

Question

I need to know if it’s safe to plant around my septic system and water lines. How does its root system work?

Answer 1

It is safe to plant shallow rooted plants such as perennials, but large shrubs (such as Weigela) should be planted at least 10 feet away from a septic tank.

If you can find out the location of the water lines and equipment underground, that would be helpful. Here is more info:
https://www.gardeningknowhow.com/edible/vegetables/vgen/gardening-over-septic-tanks.htm

https://www.gardeningknowhow.com/ornamental/shrubs/weigela/growing-weigela.htm