Some sources are better than others!
While most of the content in books/ebooks and journals would be considered credible in terms of Wikipedia's criteria of verifiability and neutrality, exercise some amount of caution when considering the trade and popular sources. Some of these are published by industry or commercial entities and thus there is potential for bias to creep into content.
Learn to recognize key horticultural and scientific publishers!
Go one step further in your Summon or catalogue searches to determine who is publishing the information. You're probably familiar with the major scientific publishers of our journal collections (Elsevier/ScienceDirect, Wiley, Springer, and Taylor and Francis), but take note of the following publishers in the Library's collection:
The following are useful links for finding high-quality, reputable open access journals:
Let's look at this example from a Google Scholar search:
For Creative Commons or Public Domain images with permitted usage, KPU has a page on its copyright guide: Images- How to Find, Use, and Cite
For collections with a horticultural or botanical focus, see the following: