"Late frost" refers to a situation when cold temperatures happen unexpectedly after winter ends, which can harm or damage plants and crops that have already started to bloom or grow. Full definition
If they leaf out too early, their young leaves could suffer from subsequent late frost. (sciencedaily.com)
A number of factors, including insect outbreaks and late frost damage, are known to affect sugar maple. (sciencedaily.com)
It is advised to plant spinach four weeks before the average latest frost date and keep it at a temperature range of 50 - 60 °F (10 - 15 °C). (herbazest.com)