With Dianthus.fertilize weekly& pinch the STEM below the flower
.dianthus has been tricky for me& I have to be sure it don't get alot of sun for the summer time,but get more blooms in the winter fall spring
.On a frosty night I can drop a towel on it& its fine all winter,blooms and all.mine have composted cow manure mixed in soil& I fertilize weekly (Its the brugmansia fertilizer runoff)In December I mix in some 9 month feed potting soil when clean the bed& add panseys.
Gerainuims.I remove the spent heads when they are done or are too ugly to bear looking at anymore.When I do this I useually see the next buds growing
or sometimes a pair(right now)I fertlize them every week.
I don't see where you live.
How big are your pots they are in?You can use a 9 month feed/ composted cow manure mix.My mom grows her gerainums in pots.I think there the 12 in pots.
My marigolds.I let dry long enough for the seed
...then I pinch.We're spreading them
Lobelia as in red cardnial flower
?I've wanted some of this.It should grow for you.It don't like much sun.Its a bog plant so can handle moistre.mulch it to help keep it moist.It s a plant that can't be shipped to TX.I hope you share seeds
.Hummingbirds love it.pinch the stem at bottom of flowers