Beginning in 1958, Gardener Ken Avery kept a record of the bloom dates for plants in the Garden. Succeeding him, Cary George did likewise. Based on their records here are the earliest and latest bloom dates for 25 common spring flowers. Only 3 of these had an earlier date in Cary George's time - all in 1981. Certain dates may have been different in Martha Crone's time but she did not keep such records continuously, but where she did note a date that was earlier or later, I have inserted that date. These dates give you a picture of how variable the spring can be from year-to-year. The link on the plant name takes to to an information sheet about the plant. Download Printable thumbnail version (PDF). Here is a link to Ken Avery's data. (PDF)