The arrival of September means fall is right around the corner. Not sure what to do in your garden at this time? Learn 25 organic gardening tips. View video.

The Sustainability Academy is a free education and outreach program designed to raise awareness around sustainability and empower San Mateo County community members with the knowledge and skills to promote sustainability. Their diverse range of classes is taught by local experts and offer participants access to cutting-edge sustainability information and best practices. This is a great way to get involved with sustainability projects in your community, build leadership skills, and meet new people who share the same interest. Read more.

The Hatch chile pepper harvest is coming. Their season is short, so you'll want to stock up on this New Mexico favorite. Perhaps you've seen them at the store but weren't quite sure what to do with them. Learn how to find the chiles locally, how to safely prepare and store them for year-round use, and how to find tried-and-true recipes for salsa and more. Registration required.

The Master Gardeners have established habitat gardens, demonstration gardens, container gardens, and trial gardens. Check out the Fair Oaks Active Adult Education Garden, Foster City Library Habitat Garden, Hillsborough Harvest Garden, Laurel Street Container Garden, San Carlos Library Garden, Veterans Memorial Senior Center Garden (to be relocated after construction of new Senior Center), and Elkus Ranch trial garden. Select the "Garden" button on our website to learn more.

Most people know that roots are how plants take up nutrients and water, but there are so many other amazing, unseen things that roots do that are exciting to learn about. Listen to Author Robert Kourik's podcast.

Blossom-end rot is a physiological disorder related to calcium uptake of the plant. Sandy, high-salt soils and lack of moisture lead to deficiencies in calcium. While some variation exists between plant types, no tomato plant has been found to be resistant to blossom-end rot. Creating a good environment for your tomato plant can eradicate this problem. Amend soil with organic matter to increase its ability to hold nutrients, oxygen and water. Go sparingly when using manures to fertilize soil; they are often high in salts which interfere with calcium absorption. Read more.

This webinar will provide expert advice on the basics of tree selection. Reimagine your outdoor areas with inspirational designs and locally tailored tips from landscape design professionals. Find out what to consider when assessing your site and selecting species to plant. Learn the important role that native trees play in supporting local ecology and get to know a wider palette of climate-resilient species. You will leave this webinar inspired and equipped with the knowledge and resources you need to select trees that are best suited to your location. Soon you’ll enjoy the myriad benefits that the right trees provide when in the right places. Registration required.