I grew some linaria last year (don't remember the variety) and it was a
cool weather crop. I cut the flowers several times, reducing the plant
to very little, but it came back regularly until the hot weather came
along. It was advertised as an annual. When it wimped out in the hot
weather I mowed it all and it showed no resurgence in the fall.

Most linaria appears to be low growing, but this one was about 24" high
with small flowers that looked like miniature snapdragons. Bought it as
plugs.

Thanks for the input folks.

Yes, I've seen photos of the Linaria that resembles snapdragons, but
this is quite different. A photo can be seen he
http://plantsdatabase.com/showpicture/16261/

I suppose I should have been more specific. It's a Linaria reticulata
"Flamenco." I'll try cutting it back, as it's about a foot tall now
and rather straggily. I just hope it comes back before the hot
weather sets in.

Thanks.