Mid-March

 # 13 Japanese Friendship Garden of San Diego (Plant Hardiness Zone 9/10)
# 12 Loggins Residential Garden in Southern California (Plant Hardiness Zone 10b)
# 11 Japanese Tea Garden (San Francisco) (Plant Hardiness Zone 10a)

*Left: Japanese Friendship Garden of San Diego 

Late March to Early April

# 7 Fort Worth Botanic Garden (mid March or April) (Plant Hardiness Zone 8a)
# 6 Memphis Botanic Garden (mid March to early April) (Plant Hardiness Zone 7b)
# 1 Shofuso Japanese House & Garden (Plant Hardiness Zone 7b)
# 2 Sutter Residential Garden in North Carolina (Plant Hardiness Zone 8a)
# 14 Missouri Botanical Garden (Plant Hardiness Zone 6b)
#15 Maymont (Plant Hardiness Zone 7)
#18 Nitobe Memorial Garden (Plant Hardiness Zone 8) (bloom can begin as early as the first week of March- late May)

*Right: Memphis Botanic Garden

Early April
#8 Lawrence Japanese Friendship Garden (Plant Hardiness Zone 6a)
#10 Gresham Japanese Garden (Plant Hardiness Zone 8b

Mid April
# 5 Japan House (Plant Hardiness Zone 5b)
# 9 Normandale Japanese Garden (mid to late April) (Plant Hardiness Zone 4b)

*Left: Japan House 

Late April to May

# 3 Frederik Meijer Gardens & Sculpture Park (Plant Hardiness Zone 6a)
# 4 Garden of the Phoenix (Plant Hardiness Zone 5b)
# 16 Chicago Botanic Garden (Plant Hardiness Zone 5b)
#17 Montreal Botanical Garden (Canadian Plant Hardiness Zone 5a/b- U.S. Zone 4)