@Leftwood, Rick for the above and all multiple previous posts that have clarified my journey!
If I understood correctly, then with pre-treated bulbs my best bet would be to purchase bulbs in mid winter here ( that is end of July/August); plant them in grow bags with good draining soil; place the grow bags in the cool greenhouse so as to delay sprout emergence but enough warmth to stimulate bulb root development ( the cool greenhouse might drop to -1ºC in the atmosphere but the soil in the bags would never freeze). Let emergence inside shift as close as possible towards outdoor natural emergence timing and when fully grown and outdoor temps are beyond frost place them in my sheltered corner for their first two seasons, burying my bags during their first outdoor winter.
Arturo
