Good luck!
The greenhouse gives you many options.
I looked at many seed packets and collated many source's advice for "how many weeks before or after last frost" seeds should be started indoors, or outdoors, or seedlings transplanted outside.
Then I built those into some calendars with dates inserted for my area. I aimed for 80%+ no-more-frosts, not 50% no-more-frosts.
Then I ignored the calendars each year, until it was too late.
