Welcome to Cooperative Extension: Garden & Yard
University of Maine Cooperative Extension provides home gardeners with practical, how-to solutions based on university research.
- Ask a gardening question.
- Diagnose a problem.
- See our calendar of upcoming classes and events.
- Register for upcoming classes and events.
- Learn more about becoming a Master Gardener or Maine Harvest for Hunger volunteer.
- If you need a plant identified, bring a sample to your local UMaine Extension county office or fill out a Plant Identification Submission Form (PDF).
Find garden & yard information about:
For timely information throughout the gardening season,
see Maine Home Garden News.
September is the month to…
- Harvest and dry herbs while they are at their peak. If you have been gathering perennial herbs regularly through the summer, mid September should be the last cut of the year. Any new growth after that will likely be damaged by cold weather. The drier days of autumn are a good time for drying herbs. Get some hints on drying garden produce from our video “How to Dry Vegetables.”
- Remove plant debris and weeds from the garden to reduce the number of overwintering sites for unwanted insect and disease populations, and minimize the deposit of seeds into the soil “weed seed bank.” Follow with a cover crop to protect the soil and serve as competition for weeds. If planting a cover crop is not an option, topdress with an organic mulch, such as seaweed, straw or leaves. Mulch will also add nutrients to the soil and improve soil structure.
- Watch the weather and take steps to protect tender plants if there’s a chance of frost. Bulletin #2752, Extending the Garden Season describes methods to protect plants from the cold and extend the growing season.