Maybe because mine grow inside instead of outside?
I think so. I often have things bloom significally later than those that other people have in GH... they get there, but the chill likely slows them down a bit.
Den Love Memory 'Fizz'. Been in bloom for about three weeks.
Have been waiting for all the other buds to bloom out, but nope! This darn plant refuses to just give one big display. If memory serves, think I recently commented on this on someone else's thread. Just look at all the blooms on the other side...
I even brought it out of sunroom where it's warmer two weeks ago, and it STILL won't open up. Grrrr... pretty, and also pretty frustrating.
__________________ Caveat: Everything suggested is based on my environment and culture. Please adjust accordingly.
Look at the bright side... the bloom time likely will be extended since those stubborn ones may be opening as the older ones fade. Flush blooms are great, but having them last longer is not so bad...