[Mazzie]

Would it be ok?

[Trillium]

I wouldn't because rhubarb leaves just keep getting larger and larger over time and will quickly swamp your strawbs, which definitely need maximum light and not be squashed under rhubarb leaves.

[Ropster]

My strawbs and Rhubarb are next to each other and it doesn't appear to bother either, however the warning about Rhubarb getting bigger is worth noting, leave a bit of growing room