Should I send her a gift?

The perfect time to send flowers, surely?
I am not sure why you are hesitating.

I agree - it's a lovely thing to receive if she's going through a bad time.

Yes I would. It will cheer her up.

Flowers are always acceptable I think but keep it simple with a nice message.

Yes, I would. I have just arranged for Christmas flowers for my ex DiL who is not too good. She loves them, we remain on good terms so why not?

Absolutely send her a small gift.

Yes of course, I find it strange you're even questioning it.

Yes- just do it. I'm sure it will do her good to know someone is thinking of her.- It would me!

I agree with everyone else, flowers always lift the spirits so send them flexiblefriend

Yes - and she will always be your son’s grandma.

An act of kindness, however small, is never wasted!

Yes.....perfect time to send flowers. I would put your name to them as its important she knows how much you are thinking of her.
Don't mention OH or difficulties just something simple like I'm thinking of you.......

I certainly would ??

I would too! am not really sure what your worry is with this? If she isn’t getting on with her son then it would surely be a comfort for her to know that you and grandson are thinking about her??

Sounds like a good idea to me.

In your place I would send either flowers or a small gift and a simple message wishing her many happy returns of the day and sign it both in your son's and your own name.

Thanks for all your replies .. just ordered her thw flowers ?