Terciera, Azores,
Portugal 
Peonies: I just received some peonies as a bonus gift. How deep should they go, will they bloom the first year, and do they need a very cold period to bloom again next year. I have avoided them because I was under the impression that they needed a period under 0°C to bloom again - like tulips and large daffs.
21 Feb, 2025
Answers
I did a search on Peonies Zone 10, and there they talk about the difficulties, even to dumping ice on the plants! Some people mention digging them up and putting them in the fridge. This is the downside of living in a warm area.
21 Feb, 2025
Planting depth is as important as temperature. The top of the bud should be no more than 1 inch below soil level. In fact it can be above the soil.
22 Feb, 2025
Previous question
« Rhubarb 'Timperley Early' I planted this in early spring last year, it...
not aware of needing a chilling to flower. But I find they 'sulk' for at least 1 or 2 years after moving. and flower well after that.
I've added the RHS link for you.
https://www.rhs.org.uk/plants/peony/herbaceous/growing-guide
21 Feb, 2025