Is this a weed?

Hello!

Whenever I do my parents' garden, every few weeks this appears in one of the flower beds which is next to next door's garden (full of weeds) and it grows straight up, reminds me of asparagus..

anyone know what it is? I'm 99% sure it's a weed. When I pull it out, the root and stem can be quite deep, sometimes 10 inches into the soil.

Thanks for any advice!

 

Looks a bit Rosebay Willow herby but i;m not quite sure

 

It's so annoying how it grows. Next time I do the garden i'll take photos of it actually growing in the beds, as I took the photo about an hour after I pulled it out so it's wilted a bit

It's growing where Woodruff was once (took forever to kill that too) but I don't see them being connected.

 

if thats the stuff with purple flowers which goes fluffy
i'd say it is and does have deep roots well mine have