Sorry to hear about your grandad but how lovely that you have been able to take over his allotment, I imagine you feel he is very close when you are up there. I feel very close to my dad & uncle when I am on my plot, not that they ever saw it but they both grew veg for many years. Mind you I think sometimes they would be shaking their heads & saying" aye lass what on earth are you doing it like that for"😄 But I hope that they also think" well lass you've taught me summat" 😅. I certainly taught my dad about compost making whilst at our old house, he was amazed how wonderful it was one time when I was digging some out!