Hot Weather Tolerant

Just doing plant labels (while I wait for it to warm up before heading out onto the veggie patch today) for April sowings and just had to share the banner emblazoned across the Calabrese "Hot weather tolerant" - so am I, but will either I or my Calabrese ever get any to tolerate, it doesn't feel like it right now with a northerly wind whipping 2ºC air round about outside.