If you have these lenses then bring them all.
I still get confused if you spend that kind of money on equipment and are clueless as to how to use it or what it is used for.
Why did you buy it then except to show off you got it?
Have you ever used the lenses you have to see what they do?
It just amazes me this sort of question.
I would bring my 10-18, 24-105, 100-400, 8mm fisheye and leave the macro at home as the 100-400 in that situation would be most excellent for the close-up shots.

Nonsense on the flash. This is how misinformation gets into the conversation. The rules for the Conservatory and Ross Hall are no tripods, lighting equipment, easels, selfie sticks, monopods - all photography must be done with hand held cameras. Photography is not permitted in the Art Gallery. I've used flash in the conservatory on nearly every trip there over a period of 25 years. Most recently - holding a radio triggered speedlight in my left hand while holding the camera in my right.

https://www.nybg.org/visit/visitor-guidelines/#:~:text=Tripods%2C%20monopods%2C%20easels%2C%20selfie,Art%20Gallery%2C%20and%20Ross%20Hall.&text=In%20the%20Conservatory%2C%20photography%20is,with%20hand%2Dheld%20cameras%20only.

Here is a video slide show I did in 2013 of images I took during a few of their orchid shows.

https://www.youtube.com/watch?v=StpvIvjitWo

I’d be shooting for my sister cuz she’s the orchid farmer and I never shoot flowers for myself. On that basis I would bring my OM-D, 7.5mm fisheye, 12-35, and 60 macro. I’ve never seen the venue, but that is my “comfort trio” and will produce my best results in unknown territory.

OTOH, Architect’s zone is his fisheye, 10-18, 24-105 and 100-400 (for EOS APSC is my best good guess).

Presumably, since you’re wearing your Wise Advisor hat, you also pack your own bag ? Would that be right ?

I agree that it seems odd to let others pack your kit bag for you but it’s a sacred Hoglander tradition among the followers.

If you have these lenses then bring them all.
I still get confused if you spend that kind of money on equipment and are clueless as to how to use it or what it is used for.
Why did you buy it then except to show off you got it?
Have you ever used the lenses you have to see what they do?
It just amazes me this sort of question.
I would bring my 10-18, 24-105, 100-400, 8mm fisheye and leave the macro at home as the 100-400 in that situation would be most excellent for the close-up shots.

It really depends on what you expect to be shooting. For flowers in the conservatory I usually use either a 150 or 180 macro, and a speed light with a large bounce (12x18) with a radio trigger. I use a longer lens outside, often with a reflector used as a shade if it is sunny.

But the Kusama exhibit is different. I would suggest that the macro and the 24-70 might be sufficient. I cannot think of a situation when you would need anything wider.

I used to live about 15 mins from the Botanical Gardens and visited the place at least once a week, except during bird migration season, when I would be there 5 days a week. Having a membership that allowed early morning access and free parking was a BIG plus. Right now there should be a irruption of hummingbirds - on the southeast side of the conservatory on the Ladies Border, and sucking up the nectar from the Jewelweed flowers, Cardinal Flowers and others in and around the Native Plant Garden, Mitsubishi Wild Wetland Trail and the Bridge Trail.

If you go there early, you should have pretty much unrestricted access to the outdoor portions of the Kusama exhibit, and for a short while inside the conservatory. But when it gets crowded, they could restrict photography, though I've never seen that done. They will more often restrict access to keep the crowds to a manageable level, like during the Christmas Train Show.