zuzu,
Well I took your advice and took my minis out of the garage, pruned off the dead stuff, and potted them up in fresh potting mix - a mix of store bought organic potting soil, some leaf mold from my compost pile, and some perlite to aid in drainage. I couldn't get over how compacted the old soil was. The plants were actually rootbound. Healthy looking roots, thankfully. I put 3 in a large 20 inch wide pot, and the largest one in a 12 inch pot. I'll keep them outside in the shade for a few days then gradually move them into the sun. It's supposed to be great weather here for the next week or so 60-70's. Since April can be such a tricky month, I'll keep an old blanket handy to throw over the pots if temps are supposed to drop below freezing.
stillwood, my minis were store bought (Kordana, was the type I think) and one got to be at least 18 inches tall and just as wide! The others stayed around a foot high and wide.
