Is it due to the hot weather?

I've got a Clerodendron trichotomum which has thrown a sucker over a
metre from the original plant. I know C. bungei suckers like mad (I've
got one) but in 20 years of growing C. trichotomum I've never seen a
sucker. There are several reports on the "Dave's Garden" page for C.
trichotomum about suckering, but it is common in the USA to experience
temperatures we've been having recently.

I've also got a Wisteria floribunda "Black Dragon" throwing suckers to
some distance. I've had the odd local sucker, which is not uncommon, but
never so many as this year and so far away (1.5m) from the main plant.

Anyone seeing this sort of growth with these or other plants not seen
previously?

--

Jeff