Mine grow different as its LOTS LOTswarmer here.I get blooms with the time changes.time changes in light set my buds.my bloom is heaveir in the fall than from the
spring.Mine are evergreen.I do cut them back in july& root cuttings and
plant out elsewhere.AND I learned this year the difference to
growing my bronze mum in a shaded area versis a full sun area(I'm actually gonna move it....again but to a spot that gets a lil shade.It don't get any where its at& is a bit floppy by july....I ALMOST cut it back in june)I've got serria which is actually blooming the 2nd time now& I'm hopeing it still blooms this fall& I'm going to pinch it some& its gonna be the one moveing to full sun.I love its color.I have a yellow sunshine thats
growing in all kinds of spots in the yard& it does good in full sun,but not in shaded spots.its even
growing in others yards.I have a red,thats a kings cutting.it s on its 3rd year and looks to have 3 stems now& i've keept it pinched of buds this yearI need to dig its tag in ground to get the name(For $1 kings will do you a metal tag with grow info...size of dogtag.nice)
As to blooming you have different time frames for blooming,but most are affected by the light.I have one clump of yellows that get light from a security light and they bloom longer,but not as heavy,where my others get pretty good total darkness being in middle of woods and all.ceept in full moon nights.I carry a flashlight in parts of my yard...not just for snakes...but I don't wanna walk into a
tree or the holly
tree either OUCH or the fence around burn pile.
Florist mums are force bloomed or are the fanicer less hardy types like spider/quill etc. they make sad/poor
growing plants cause of the forced conditions.the less hardy ones like no temps below 50.(I am going to try a spider mum...as a container
plant)NYC botanical gardens does a floral display with the less hardy ones.you should check it out if given the chance...send me a plane ticket....I'll go with ya!I might need to borrow a winter coat though.LOL