Heirloom is our bloom champ. We got it in 1996 and I quit trying to count blooms within a couple years when it got over a hundred blooms per flush. Heirloom acts more like a big floribunda than a hybrid tea for us. Iceberg and First Edition try to bloom as much but always come in 2nd or 3rd behind this rascal. Sweet Chariot may have as many blooms. I don't try to count blooms on that monster either. Heirloom gets 5 feet tall and wide here. Foliage is pretty thick and it makes an attractive bush. Blooms open fast and fade quickly in the sun. Color becomes a dirty brownish pale mauve after a week. That is really the only thing I don't like about this rose. Fragrance is almost strong and all those blooms get your attention even with your eyes closed. Deadheading is a chore. Our deadheading sessions usually end up in rose petal fights. Deb hangs out around Heirloom so she has plenty of ammo. Turnaround time is average, about 6 weeks.

Heirloom is not cane hardy. It takes winter well and spring growth is early and vigorous. Heirloom did make it through a couple winters before I began protecting roses. It did so well that I don't bother mounding it.

Blackspot is not a problem here. Heirloom will get powdery mildew if conditions are right. Very good rose even if it is a mauve thang.

Dave
South central Montana - zone 4/5