How are 'tree ferns' listed on Apx. II? By family? Genus?
Thanks for letter to PPN! After reading the reply, I wonder about
whether the purported propagation by suppliers is ever validated...? I
guess "<us> people" will just do what we have to! ;)
Years ago when I grew VFTs, I used refrigeration to successfully induce
dormancy in VFTs and many other CPs. However, most SEUSA CPs seem to be
very tolerant of LOW outdoor temps. But, in all-year-round warm places
AND/OR places with not enough differences in day length (whatever this
translates to), refrigeration should work fine. (Make sure soil is not
soggy & that they won't dry out over a period of time--I suggest
freezer-quality ziploc-type bags. Check 'em every couple of weeks.)
AFN, -pt