you heard me! don't put those frost sensitive plants in the ground until that first FULL week of june.
here is a link for an interactive average last frost date map for colorado. for once, i have found a true to the year frost date planner.
the farmer's almanac still says may 15th. if you want everything to die a miserable black death, then listen to them, otherwise, first full week of june.
then corn, beans etc get directly sown anywhere from the 10th-17th of june.
just for good measure, here is a USDA zone hardiness map for colorado.
up-potting some lime basil seedlings. 24 of them still going strong.
i am currently hardening off some onions, strawberries, kholrabi and oregano.