Barb, thanks!
Uh, I guess that means 90% of the roots were unhealthy. The white fleshy ones were few and far between.
Another bad sign: poor drainage. The water I used to rinse the soil off the roots ran into the hole. Well, it took literally hours to drain. I know the ground is saturated from recent rains, but still, it was not a good sign. This is the highest point in my garden and water never stands on the ground. The top 18" or so of my garden has great soil, but there is clay down below. I haven't worried about it as my garden is situated on a rise that slopes down to the horse pasture so I always assumed that water would move through the soil laterally. Well, maybe not. Perhaps that is why my younger plants coming out of 3 - 5 gallon containers do so well: they don't send roots down to the clay layer where water accumulates. Just a guess.
W wants a Butia back in that spot. If I go along with that I'll have to do some major work to improve drainage so its roots don't sit in water.
Jim, Bill: I had 5-15-5 with IBA handy so I used that. I'll check out the other products.
Bill, Barb:
the Mexican petunias (Ruellia brittoniana) have flowers that are more purple than my cell phone camera depicted. W bought three a few years ago and they have done well. This winter was tough. 1 died, 1 came back slowly and is only now looking good but this one has taken over. It is 5' high and spread to ~8' across. It has bloomed non-stop, even in August when it was so hot. No fertilizer, minimal water even in the heat. Hummingbirds and butterflies love it so there are always colorful animals hovering over it. Just great.
Firebush (Hamelia patens) is hard to find here. Two were eaten by goats but one (pictured) came back anyways. Given how hard they are to find, we'll dig and pot both of the ones we have. If you can overwinter them, I'll try next year. How do you plan to protect yours? (Maybe we should start a new thread?)
--Erik
Edit: corrected spelling of Barb's name
