Thoughts on last frost date?
What do you estimate our last frost date is this year (2020) in Maryland? It seems like with climate change the weather keeps getting warmer, and the charts I am referencing seem old enough that they could potentially be out of date…
Anne Arundel County Maryland
Good morning. Take a look at our spring frost date page for a link you can use to enter your zip code and find your area's average last frost dates. https://extension.umd.edu/hgic/topics/spring-frostfreeze-dates-maryland
It is true that our weather is getting warmer and spring "leaf out" (when deciduous leaves emerge) has occurred three to four weeks earlier than the long-term average in some places this year. (More info on that here, https://www.usanpn.org/news/spring) That said, climate change makes our weather more unpredictable and there is still a possibly for a late freeze.
I recommend that you still follow the charts based on historical data. If you want to experiment and push things out a little earlier, be prepared to cover plants with a frost cloth/row cover for protection. https://extension.umd.edu/hgic/topics/floating-row-cover