| April 6 | 7pm | Milwaukie Center | GPIS Meeting | Show Prep-Horticulture by Anne McDowell and Chad Harris; Artistic by Tracy Plotner and Kath Collier
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| April 17-18 | 9am-5pm | Portland Expo Center | Hardy Plant Society of Oregon Plant Sale | Spring sale, open to the public. |
| April 24 | Noon | Mid-America Garden | OTIS | Judge's Training: In Garden on Medians by Marky Smith |
| May 1 | 10am-8pm | Lloyd Center | GPIS | Early Show |
| May 2 | Noon | Clackamas Banquest and Catering Center | Judge's Training | Louisiana Irises by Heather and Bernard Pryor (Australia). If interested contact John and Kay Ludi. |
| May 22 | 10am-8pm | Lloyd Center | GPIS | Mid Show |
| May 23 | 1pm | Aitken's Salmon Creek Garden | Judge's Training | In garden on Miniature Tall Bearded by Jean Witt. |
| May 31-June 5 | all day | Madison, WI | AIS | National Convention |
| June 12-13 | all day | Portland, OR | GPIS | Spuria National Convention! GPIS is the host of this event. For more information, please to to the 2010 Spuria Convention page! |
| Aug. 7 | noon-4pm | Sandy Grange | Potluck and Iris Auction | GPIS's largest fundraiser and party! |
| Aug. 21-22 | 9am-5pm | Portland Nursery | Plant Sale | Fund-raiser sale focusing on named iris varities. |
| Sept. 7 | 7pm | Milwaukie Center | GPIS Meeting | Siberians by Terry Aitken |
| Sept. 18-19 | 9am-5pm | Portland Expo Center | Hardy Plant Society of Oregon Plant Sale | Fall is a great time for planting and some great bargains can be had. |
| Oct. 2 | all day | Wenatchee, WA | Region 13 | Fall Meeting |
| Oct. 5 | 7pm | Milwaukie Center | GPIS Meeting | Hostas and Shade Plants by Thomas Johnson |
| Nov. 2 | 7pm | Milwaukie Center | GPIS Meeting | PCI’s by Will Plotner |
| Dec. 5 | Noon | Clark Public Utilities | Holiday potluck and gift exchange. | Join GPIS members for great food and gifts. |
