European Gardening: Where are you in Europe?, 1 by laroque

laroque wrote:
Re Scaveolus. Rather a long time getting back with a picture but had family staying.
I bought the plant at the end of March when it was in flower but didn't water it regularly as I was told it did not need much.. a mistake. However after feeding and daily watering from June onwards it started to flower again in July and now has plenty of flowers but with a rather weedy growthy. It is on top of a wall so does not have much depth of soil and is in full sun from early morning to about 5pm . The flowers are half moon shaped about 2cm across. I am hoping it will thicken up and that it is a perennial.The photo is not very good but does anyone have any info about this plant?