Hello,

This is my first post on a forum and Im after some advice, we bought our home a couple of years ago and the woman who lived here before was obviously a keen gardener. I dont claim to know much about gardening myself although Im learning and Ive managed not to ruin the back garden so far but Im having trouble with a particular plant in the front garden.

I dont know what it is and neither does my mother-in-law who is the only keen gardener I know. I was very suprised when she didnt know and originally liked it and asked if she could take some but after she'd witnessed how it takes over she's decided not to take any!

Two summers ago I pulled it all up however it came back fiercer, last year I was constantly maintaining and trying to control it but this year its almost taken over the front garden. Ive used Weedol Rootkiller+ on it this year and it just appeared to damage the part of the leaf that it landed on! Until now Ive found this weedkiller extremely effective and Im running out of ideas on how to get rid of it.

Ive attached a couple of photos, the first 2 are of the flowers and the plant, the second to show how its taking over the garden and the third shows the leaves and the damage to them from the weedkiller.

Any suggestions would be amazing, especially if somebody knows what this is?