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Just reporting back - things went a bit wrong with the house buying chain we’re in, so we’re looking at another couple of months of delay. And in the meantime, lockdown life has been challenging, and I haven’t managed to get anything started in pots or bins (we haven’t got much access to outside - or inside!- space either) although that was a really good idea. We’ve just got window box pelargoniums, herbs and houseplants. I have been doing a lot of browsing (books, online, not *gasp* in the outside world, though I have been browsing people’s front gardens!)
In summary I have scaled back my raised bed veg production ambitions and I will see what seems possible when we arrive. And plan for next year! Thanks so much for your answers and help.