We will be at the church end of that field, correct?
no I think the photo is taken from the gap into the field where the info is. I would recommend going into the churchyard for a better view afterwards (I couldn't really put the info there), or there may be other gaps in the hedge. You won't see much from the A47 or the turn off it. I did see another large field on the route on the way to Wormegay after the A47 but it was literally being planted as I rode past.
I've never seen fully grown tulips at the location but there are many photos online with the church over the years
There also looked to be a field on the way from Gayton to East Winch (after Back Lane) on the right near an airstrip on the left. I have seen tulips here before (in 2019 and was going to send the 2020 route that way but Covid scuppered that). I think all the tulips are grown by Belmont Nurseries although not sure which fields they own if any. They may just rent the fields, not sure If they get used for anything else.
The Press only tend to show the field that's open for charity (and sold out within an hour) Although you can buy tulips at the open days I think all the ones in the fields get decapitated and they just keep the bulbs.
PS had an entry from Gavin so you won't be the only Darksider...