On my walk up my street this afternoon, every other verge had agapanthus, Agapanthus praecox, growing healthily. Definitely the predominant species round these parts.
Why it's a pest plant
It seeds prolifically, spreads seeds effectively which germinate densely. Fragments of the roots easily regrow. Plants live a long time and can handle a wide range of conditions and soil types.
Wherever it grows, it forms solid clumps. I've seen layers and layers grow on top of each other. It bullies all other plants out and takes over.
For information on getting rid of agapanthus see Weedbusters,
A very large house with a small garden area, embedded on a densely housed hill in CBD.
The first job was to see what was involved in refreshing the garden area. We took photos of the various areas, cleared the weeds, pruned the very old rose right back and created a large compost pile.
Hover over the photos for explanations.
This almost coastal property wants low maintenance plants that keep the weeds down. There are a surprising number of options. We chose small plants so they get established easily. Green akeake, red matipou, muhlenbeckia astonii, manuka, coprosma proquina, astelia banksii small silver spear.
Hover over the photos for captions.
We've done most of the weeding. Next step is to select plants and get them in.