As a comment about Tah Tsai (Brassica rapa subsp. narinosa 'Tatsoi'), Newyorkrita wrote:

I love the taste of Bok Choi, so when I saw Tatsoi I decided I need to grow this one also. Like Bok Choi, it is one of the Asian greens. So far, tatsoi seems to be far more heat tolerant than Bok Choi as I have had it growing all summer without bolting. I like the taste of it, and if you like Bok Choi then give tatsoi a try too. I think you will like it.
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Sep 29, 2014 6:01 PM CST
Thread OP
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
Frugal Gardener Garden Procrastinator I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest
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@Newyorkrita said:
>> So far, tatsoi seems to be far more heat tolerant than Bok Choi as I have had it growing all summer without bolting.

I'm glad you mentioned that! My summers are so mild that I never knew. I[ve only had one Bok Choy bolt on me in its first year. Any that I leave in the ground over winter burst into bloom and then seed early the next spring.

Everything I read says that the green tatsoi are cold hardy - one source said on cultivar was hardy down to 15F. But I've never tested that, either.

I have a few red or red-violet tatsoi varieties, that don't boast about either heat or cold tolerance. Maybe those tend to be fussier (guessing).
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