What are these WEED or some flowers

they grow in many places in our new Vancouver garden.. and I dont know
first I thought it was off spring off a PEONEY rose I planted but that has not shown
this season anything. ? Thank you.
The Japaneses Saule should have survived HAVE THEY they look so bad
should I replant them with new soil in the pot etc or just wait ?
Thank you

 

#1 and #2 look like buttercups, perhaps Creeping Buttercup Ranunculus repens.

 

I'd agree that #1 and #2 are buttercups. #3 looks like it's intentional - the decorative planter, the fullness of the plant.... It looks kind of like a sedge or ornamental grass but I can't really tell.

 

The first 2 pictures are definitely creeping buttercup - quite a difficult weed to get rid of.

 

Thank you so much .. Yes they are in many places..so Funny they never grow WHERE one would like things to green like under the PINE tree :-)
...will talk to them :-) or maybe I should replant them haha...talk about a gardening masochist..replanteing weeds :-)

 

If you're going to plant this get the double flowered form.

 

The ranunculus r. is quite resilient to weed control.... if allowed it will overtake the soil patch...

 

Thank you have I have removed it all.

 

Unfortunately it reseeds itself for years.... you can bet it will pop up in two months or less...:(

 

Ok thanks I will be on the lookout :-)