High Altitude Nature and Gardens – Mini outdoor greenhouses, cinnamon to protect soil and seedlings

• Mini greenhouse/cold frame from zip bags
• Cinnamon an effective soil and plant treatment

By Janet Sellers

January can be a month to start some of our plants, especially those that need a long growing season. Where we live, plants that need a long growing season to establish roots and develop themselves underground can be started indoors or outdoors, even in winter. I used to try to start seedlings indoors, but there were issues with my efforts. I found some new ways to try this year.

Mini greenhouse/cold frame from zip bags

The zip bag technique has been used nationwide for quite some time. We can try this out even in January. Basically, you need gallon-size freezer zip bags, potting soil (not garden soil), water, and seeds. To start, put about a third of the bag full of the potting soil. The key to success is the minimal moisture of the potting soil. Spray with plain water and then pick up a handful, check if it holds together but can easily fall apart, and that’s probably just the right amount of moisture. Too much water (if you can form it into a solid ball) could later dry out and become impervious to watering. It must be moist and stay fluffy to support microbes and seed sprouting.

Cinnamon an effective soil and plant treatment

Benefits of cinnamon:

• Natural fungicide: Cinnamon’s antifungal properties help control various molds and mildews.
• Safe for edibles: It’s a natural, safe option for vegetable and herb gardens.
• Deters pests: It can also help repel fungus gnats and ants.
• Use cinnamon as a preventive measure in winter to keep your soil healthy and prevent powdery mildew from taking hold in the spring, especially in the humid environment of a greenhouse.

Some gardeners lightly sprinkle dry powdered cinnamon over the top of the moist soil, dusting the surface lightly. This can prevent damping off, a common, often fatal disease in young seedlings. Apply topically to seed starting mixes to stop fungal diseases affecting seedlings. For existing mold, remove visible mold, then sprinkle cinnamon on the spot and increase air circulation. Some gardeners suggest cinnamon can inhibit root growth, so focus on the soil surface rather than burying it deep or applying directly to roots. Cinnamon works best with proper plant watering and good airflow. It’s not a magic bullet if conditions remain overly damp and humid.

Janet Sellers is an avid “lazy gardener” using simple, natural ways to support gardening efforts all year. Contact her at JanetSellers@ocn.me.

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