propagating euphorbia and tree peony question too

Longview, WA(Zone 8b)

I have been trying to find out how to propagate euphorbia by cuttings...I read somewhere to plunge the cuttings in sand to stop the sap bleeding and then plant. Anyone have any experience propagating these plants?

Also I have three tree peonies I planted before I knew much about them. The graft point is slightly above the soil line. I have read recently that it should be below the soil line so the plant makes it own roots. So, do I dig them up and replant? They bloom lightly about every other year.

Christiana, TN(Zone 6b)

Euphorbias are easy. I cut a piece or tear a piece off and let it dry for about a day and then plant in potting soil. You don't have to put it in sand to stop the bleeding. It will stop soon enough on it's own. It won't hurt it at all.
I believe most succulents need to be left out of soil for at least a day or so. Longer won't hurt. You could lose some to rot if you don't let the cut dry, I think.

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