Mirabilis longiflora

penstemon penstemon@Q.com
Sun, 24 Jun 2018 13:55:17 PDT
>Interesting! Maybe I'll try that. Until now, I had considered M. 
>multiflora to be the hardiest, which indeed overwinters outside 
>unprotected for me (zone 7ish), though only from one of my two seed 
>sources - maybe there are individual differences?
M. multiflora is definitely hardier than M. longiflora. 
The percentage of viable seeds in multiflora is sometimes low, but since the seeds germinate within hours after the seed coat is nicked, and the seeds are soaked in warm water overnight, it’s not necessary to wait for any length of time to be disappointed. 
Bob Nold

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