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May

Asian Pacific American Heritage month

1-5

Teacher appreciation week

2

National teacher day

5

cinco de mayo

6-12

National Nurses week

10

Mother's Day - mexico

10-12

hortiflorexpo IPM

Shanghai, China

14

Mother's day

20

Armed forces day

22

Victoria day (canada)

24

Holocaust remembrance Day

27 - 6/25

Ramadan

29

memorial day

30 - 6/1

shavuot

june

national rose month

13-16

International Floriculture Trade Expo (IFTEX) 

Chicago, IL

13-14