How hot is 'Heat?'
I have no idea in which forum to post this thread, so I'm posting it in a few places.
This is the first year I am growing my own plants from seed and I have been researching several different plants. Several plants are described to be heat-tolerant. Others are described as being intolerant of heat (e.g., going dormant, stopping blooming, foliage dying, etc.).
My question is, how hot is "heat?" At what temperature do heat-INtolerant plants start to get damaged?
The hottest it ever gets here is usually the mid to high 90s (all time record high of 100). Would that cause heat-intolerant varieties (such as sweet peas) to stop blooming? Does duration of the temperature matter (e.g., days, weeks, month)?