Welcome to NPA

The Northwest Perennial Alliance is a community of over 1400 friends, neighbors and experts who share a passion for gardening in the Pacific Northwest. Everyone is welcome.

Join now!
Membership benefits include:

Upcoming events  


Wednesday - Sunday, February 22 – 26
Northwest Flower & Garden Show
Visit the NPA booth (#2501) at the show

Wednesday - Saturday, 9 am - 9 pm; Sunday, 9 am - 6 pm
Washington State Convention and Trade Center
800 Convention Place, Seattle   


Saturday, March 11
MARCH MANIA PLANT SALE
9 am - 3 pm
Aaron Education Center, Bellevue Botanical Garden
12001 Main Street, Bellevue WA 98005
Great sale, indoor location and kids activities, too!
More about March Mania.


Thursday, March 16
Border Weed & Feed
10 am - noon
NPA Border at Bellevue Botanical Garden
12001 Main Street, Bellevue  98005
Spend two hours working in the Border, then enjoy a potluck lunch.


Sunday, March 26
Nicolay Memorial Lecture
"The Triumph of Seeds" with Thor Hanson, PhD

Doors open at noon for plant sales from Far Reaches Farm and book signing by Thor
Lecture begins at 1pm
NPA members $5/Nonmembers $20
Aaron Education Center at Bellevue Botanical Garden
12001 Main Street, Bellevue 98005
Read more.  


Friday - Saturday, April 7- 8
Elisabeth C. Miller Library

Garden Lovers’ Book Sale
Center for Urban Horticulture
3501 NE 41st Street, Seattle
Read more.


Sunday, April 9
NPA SPRING PLANT SALE
9 am - 2 pm
North Seattle College
9600 College Way N, Seattle
Read more.   


Sunday, April 23
“Butterflies of Cascadia: Life Histories and Conservation”
with David G. James, PhD
Doors open at noon for book signing and plant sales
Lecture begins at 1 pm
NPA members free/Nonmembers $15
Aaron Education Center at Bellevue Botanical Garden
12001 Main Street, Bellevue  98005

Read more.


For more NPA events, see our calendar.

To get the latest news on NPA events, subscribe to NPA emails.