In my garden the only thing that appears to make a big difference is heat; the blooms that open well last almost a week, the others can be gone in day or two, no matter the cultivar.

From my experience:

Tiffany---From bud to fully open to petals on the ground in 24 hrs

Scentamental---Opens nice, then when fully open, the petals drop even as the stamins still look fresh. It looks kind of weird. Fresh stamins on a stem.

These two have been the worst for me. I won't grow a rose that doesn't stick around for at least 5 + days

I recommend, from my garden, Light Years Away and Living the Dream, Violet's Pride, Sweet Madam Blue, Stainless Steel, Eisvogel, Heavenly Scented, Pop Art, and St. Tropez. I can post pics if you'd like. :)

I'm sure I'm leaving some out, but the first ones to come to mind as long lasting in my garden would be Francis Meilland, Moonstone, Aloha, Poseidon, Arborose Honeymoon, Violet's Pride, Caramel Kiss. Most of those look pretty good and drop their petals fairly gracefully when the bloom is done, but Honeymoon and Caramel Kiss hold onto their petals long enough that things look icky if I don't deadhead fast enough. I garden in a hot, humid, windy location and roses opening and then shattering fast is just a fact of life.

MissMary,

These three are worth giving a try. They all have blooms whose petals are thick, almost like plastic, and last a long, long time before petal drop.

QUICK SILVER

It is a Kordes rose. The blooms are large, 4"+, heavy in petal count, and the quilled petals layer very nicely making the bloom full and high centered. You never see stamens showing in the blooms' centers. It seems days galore go by and the blooms hold their beauty. There's no wilting or crisping at all.

I grew it as a small/short climber for many years, but now am growing it as a shrub, not trained. It seems reluctant to cooperate, making long canes and long laterals, no matter how aggressively or judiciously pruned. It bloomed profusely as a trained climber, with its canes trained horizontally, making many very short, strong stemmed laterials with flowers at each tip. Mine will black spot a bit, but not excessively so.

In conclusion, the blooms are lovely, with cast iron properties, so to say.

ALOHA

I have never grown Aloha, but observed it grow in a large local, public, ARS accredited rose garden. It is a beautiful, large bushed, hybrid tea. The bloom is much like Quick Silver's for durability, thick of petal and long lived on the bush. It's an older HT, so its black spot issues are present, but not excessive, even acceptable if perfect foliage is not mandatory. If it is, then spraying is the necessary route to take to keep Aloha's foliage pristine.

IRRESISTIBLE

This miniature has it all. It's tall, easily reaching 3'. It's vertical, rarely growing more than 18" wide, even when exceeding 3' tall. The white, pink blushed centers at first, 1.5" blooms are petal packed, high centered, with a tough as nails constitution few roses have. It's a black spotter as almost all minis are, so must be sprayed to keep its foliage clean.

Hope these three roses meet your expectations.

Moses.

As much as I love my Quietness, be warned, the blooms do not last long enough.. It drops its petals too soon. Truth needs to rule! The blooms are very beautiful, come in abundance, grow on long, strong stems, resist wilting and scorching during intense heat and sunlight, excellently. Quietness fights black spot valiantly, but does get it late in summer, September, but just a little and only on the oldest bottom leaves.

Quietness is classified as a bush. Don't grow it as you would a Knock Out. It really is a Grandiflora, and treat it as a long stemmed hybrid tea, dead heading it as you would a hybrid tea. Treat it as a self cleaning shrub, and you will get a miserable, messy bush, having tiny blooms.

The petals drop too soon, period.

Moses.

NollieSpain, I hadn't even really tried to consider which of my roses shatter fastest, but I think the same is true in my yard for Rose de Rescht. I have it in a sheltered location near my house, and even then I only get to enjoy the blooms for a day. But I love it despite that flaw, and it just gives me more justification for walking around the garden frequently.

I'm pleased to read that your Versigny is such a good performer. I have a young one that I haven't had much time to evaluate yet, I hope mine turns out to be as robust.

Oh I’m glad you got Versigny, Claudia, one of my favourite roses. I hope it does well for you. It does have a somewhat lanky habit for me and gets some black spot, but just keeps on producing those gorgeous blooms regardless.

My Versigny is young as well, just had it for a few months, but I am already feeling like it’s in the top five of my 200 some roses.

Judie - that's saying a lot!

Versigny, Judi? I need to look into this rose!

Moses.