15. Rattlesnake violet (Viola primulifolia) in full flower.
16. Chimney swallows arrived.
17. Leaves of the apple-tree expanding. Sugar maple (Acer saccharinum) in full flower. Garden daisy (Bellis perennis) in full flower.
May 18. Asparagus fit for the table.
19. Smooth gooseberry (Ribes uva-crispa) in flower.
20. Shad-bush (Aron. botryap.) in flower.
21. House wrens arrived. Moose-wood (Dirca palustris) in flower.
22. Garden currant (Ribes rubrum) beginning to flower.
24. Wake-robin (Trillium cernuum) and peas (Pyrus communis) in flower.