Beautiful post. I wonder if the reason so many of our PNW Oaks aren't producing any acorns this year is because of the two heat waves we experienced this summer? We've been in a drought since 2014 so it's sadly possible. Another reason could be that Seattle's non-native Oaks might not be old enough--apparently, it can take some Oaks 20-30 years before they produce their first acorns (with peak production at 50-80 years of age). As gorgeous as many of our Oaks are, they're still relatively young. Here's a map I created of Seattle street-trees using publicly-available data: https://public.tableau.com/app/profile/taha.ebrahimi/viz/SeattleStreet-Trees/Dashboard1#1 (it's slightly easier to look at than the one City of Seattle created here: https://seattlecitygis.maps.arcgis.com/apps/MapSeries/index.html?appid=a7072ffa326c4ef39a0f031961ebace6). I'm not seeing any English Oak street-trees on Ravenna Blvd, but there seems to be a cluster of Pin Oaks from 65th to 70th. (But those acorns in your pictures definitely look like English Oaks!)
Thanks Taha for your reply and for the links. Fun stuff.
Beautiful post. I wonder if the reason so many of our PNW Oaks aren't producing any acorns this year is because of the two heat waves we experienced this summer? We've been in a drought since 2014 so it's sadly possible. Another reason could be that Seattle's non-native Oaks might not be old enough--apparently, it can take some Oaks 20-30 years before they produce their first acorns (with peak production at 50-80 years of age). As gorgeous as many of our Oaks are, they're still relatively young. Here's a map I created of Seattle street-trees using publicly-available data: https://public.tableau.com/app/profile/taha.ebrahimi/viz/SeattleStreet-Trees/Dashboard1#1 (it's slightly easier to look at than the one City of Seattle created here: https://seattlecitygis.maps.arcgis.com/apps/MapSeries/index.html?appid=a7072ffa326c4ef39a0f031961ebace6). I'm not seeing any English Oak street-trees on Ravenna Blvd, but there seems to be a cluster of Pin Oaks from 65th to 70th. (But those acorns in your pictures definitely look like English Oaks!)