Paris to Giverny and Rouen

Will a train ticket to Rouen allow us to get off at Vernon to see the Gardens and then catch another train to Rouen? No
Will we need separate tickets for Paris to Vernon and Vernon to Rouen? Yes.

It sounds like three tickets to me, but maybe not.
What you've got is a good three and a half hours of train riding:

. plus whatever it takes you to get from where you're staying in Paris to Gare St Lazare and back

. plus whatever it takes you to get from Vernon to Giverney and back

. plus whatever it takes you to get from Rouen Rive-Droite to wherever you're going in Rouen and back

. plus whatever time it takes you to poke around Giverney

. plus whatever time it takes youth poke around Rouen

Thanks, JHK and Ed
I guess we will put Rouen on the list for the next trip to France.

John, you can certainly do this if you want to. It's a full day but hardly an unworkable one. And June days are quite long.

Giverny opens at 9:30 AM. Catch the 8:20 train. It's 50 minutes, but you can use the time to eat breakfast an plan your day. If you plan ahead you can bring sandwiches or picnic fixings for lunch on the train to Rouen.

How long do you plan to stay at Giverney? Can you make the 12:50 to Rouen? If not there is also a 1:10. The trip is 40 minutes, leaving you the entire afternoon to tour the center. And the afternoon is quite long in June.

The trip back is an hour and a quarter. Use it to regroup.

Maybe that's too much for you, or not how you'd like to spend the day. But it's not a disaster or a foolish plan, and it would be someone's great and memorable day.

We thought of doing this and then didn't wanting to spend longer iin Giverny and so took a separate trip to Rouen. But if you can get to Vernon on the earliest train and don't linger in the gardens and make an early afternoon train, you could certainly do this if there is a fairly late train from Rouen to Paris. Rouen is VERY compact -- the major churches are all within a few blocks of each other, the old part of the city is an easy stroll from the train station. You could certainly do it in one afternoon.

Adam, Janet
Thank you for the detail of your replies, they have been very helpful.

Just to close the loop on this question. We did take the early train to Vernon and the Gardens. Got an early afternoon train to Rouen and an evening train back to Paris.

And did you enjoy the day?