I just came back from New York - Bronx.

Get a change please visit the The New York Botanical Gardens.
See The Orchid Show one of a kind until April 6.
Just go down for the day - takes 3 hours to drive down and the cost is $20.00 per person.
This place is bigger than Franklin Park and then some.

If you cannot go then visit during the summer for the other shows.

They have over million sprays of orchids.
You will never see this in Boston.

Visit:

newyorkbotanicalgarden.com
nybshop.org