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Do these all grow in the garden or pots

Yes they started in pots but graduated to the garden, their roots run deep and they survive even if I don't water them at all. In pots they tend to suffer

I guess that when the dreaded root mealiebugs make an appearance

Exactly! Delosperma are very easy, in fact there are species native to my area that grow wild around the house and come up like weeds in all the pots

Delosperma are like that. Which species is local to your area?

D herbeum: they have little white flowers and they have even started hybridising with the others that I bought, creating different coloured flowers

Oh, that's interesting! Do a post and show us

Ok, I will. They are by far the easiest and fastest plants I have