Why has no one yet responded?

To rescue this query from "unanswered", I will.

Poseidon did well for me this year, now that midge is controlled.

Humidity was high much of this summer, and temps were about average for NJ. Hot. Still, I realize that average dewpoint is a different order of magnitude in the Sunshine State.

Poseidon reliably balled with substantial rain. Not with just light, brief showers, nor with just dewpoints in mid to upper 60s.

Hopefully someone from your climate will respond.

Riffis

Thanks a lot for your reply l was wondering myself !

Actually I got both Poseidon and Pink Enchantment and was wondering where to plant them .lf Poseidon is going to be tall and ball in rain ,then he will have to go to the back of the bed .

rifis, OT, what did you do to control your midge?

I don't think mine balled in May or August when it rained every other day here. It is common around here for humidity to be 90% in the morning

I'm also curious about 'poseidon's' performance in a hot & humid climate. I'm no where nearly as humid as FL, but Central TX summers are hotter than FL. HMF states 'poseidon' does not do well in warm climates, but lists it as blackspot resistant.

My experience here with Poseidon balling is the same as RIfis. This one does ball, especially the spring flush, at least here in NJ

Poseidon is a climber for me here. Its in a pot that grew into the ground and is leaned against a trellis. Its over 10ft tall. Blooms very well. Lived through flooding/brackish water and stayed on its trellis through H. Irma lol. Leaves stay nice and green and doesn't ball or defoliate in our hot humid summers. I just love the color. I am planning to get a couple more Poseidons this spring and make another arch for them. I will probably mix some Honeymoon roses with them.

My current Poseidon is paired with Marechal Neil. I didn't plan it that way but they are charming together since MN is more of a baby yellow than bright gold yellow.

Poseidon with a matching blue lavender colored ginger in foreground.

Poseidon near top of trellis

Sultry

Thanks for your review! In general l do not like tall bushes like Mr.Lincon.l will have to keep cutting my Poseidon back .good to know it does not ball in our humid climate .

Talking about hot and humid, no where worse than where I am, Ho Chi Minh city.

Poseidon won't ball in the rain, and it will grow tall, taller than 1m for sure and it's a bit lanky.

vaporvac: You asked (above) what I used for midge.

Imidacloprid liquid to soil at base of each (except the hybrid rugosas) of my roughly 50 roses late Feb. Then, to 8 roses that had evidence of midge in May (surprisingly early for here), cyfluthrin spray to foliage and soil under drip line. No further/other evidence of midge until 3 (!) (late) weeks ago on 1 rose - Lions Rose. No further Rx (nor stigmata).

I don't have it but I think it's a beautiful rose.