@EscondidoCal , I always talking about a greenhouse
not everyone has a greenhouse at home, and nurseries here will not sell/hold a plant that require greenhouse. Local rule, all plants sold has to be grown in normal conditions, house or outside. Greenhouse are only in special parks. We live on the "island", over 99% incoming traffic is by sea or air, only less that 1% is by ground, therefore it is very easy to control the incoming plants (at least those imported legally).