Blood, fish and bone is a standard fertiliser, widely available. Pelleted chicken manure is another. There are others. Just check what's available in your local GC or DIY store but avoid the chemical versions. You want natural or organic as these help with soil organisms whereas oil industry by-products don't.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
It would be wise to move one of those. They're far too close together if you intend leaving them both to grow to maturity, or near to maturity, if you want them to look half decent. It will be very difficult to maintain both well, mainly due to competition for water. Once established, they need very little other than that.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Wait till autumn now when they're dormant as it will be less of a shock to their systems. Water copiously first and let it soak in then dig up one of the plants with as much root ball as possible and transplant to a ready dug hole. Adding some bonemeal to the soil and sprinkling the root ball with microrhizal fungae will help develop a strong root system over winter so it's ready for the spring surge.
Plant it at the same level it was before and water generously. Autumn rain should be enough afterwards but if there's a warm or dry spell, water it again.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
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It will be very difficult to maintain both well, mainly due to competition for water.
Once established, they need very little other than that.
I live in west central Scotland - not where that photo is...
Plant it at the same level it was before and water generously. Autumn rain should be enough afterwards but if there's a warm or dry spell, water it again.
I'll definitely do that