Rosa chinensis

This month we are featuring Rosa chinensis, native to Southwest China. China is the distribution center of the genus Rosa, and there is fossil evidence that R. chinensis was present there 40 million years ago. In the words of Japanese Botanist, Mikinori Ogisu, the “Rose is a Chinese flower rather than a European flower.”


Learning & Engagement Opportunities

The Portland Botanical Gardens (PBG) continues its due diligence and hopes to close on the amazing 59 acre McCormick & Baxter site in North Portland by year’s end. Along with the Oregon Department of Environmental Quality (DEQ), we are providing ongoing learning and engagement opportunities for the public. Community Webinar w/DEQ – May 8th, 6:00-7:30PM […]


Green Normalized Differentiated Vegetation Index

Multispectral Imagery of McCormick & Baxter

UAS (drone) bird’s eye photo over central part of the McCormick & Baxter beach & riparian area Calculating and Interpreting Multispectral Imagery Multispectral imaging creates several images for each photo based on defined wavelength bands, in this case Green, Red, and Near Infrared (NIR). This information is used to analyze and visualize the photosynthetic activity […]


Happy New Year from PBG

[Below reprinted from end of year letter from PBG] Dear Friends, First of all, thank you for your donations, letters, and volunteer energy for the Portland Botanical Gardens (PBG). Your support is what has brought us this far.  The response to PBG’s April 22, 2024 announcement of a Purchase and Sale Agreement (PSA) for the […]


sarracenia in a bog

What is The Other Plant Sale?

Now entering its second year, The Other Plant Sale (TOPS) is the next big spring event for plant lovers in the Portland Metro Area. You can find plants of all shapes and sizes alongside plant-related goodies for everyone. TOPS, the invention of Nanthawat Jiranuwatana, takes place on May 18th, 2024, from 10 a.m. to 4 […]