Winter’s Clues, Spring’s Promise: How to Nourish Your Garden the Right Way
It feels like we finally got a real winter this season. Thankfully, the cold temperatures have been accompanied by a consistent insulating snow cover—an important layer of protection for plants that are sensitive to prolonged icy conditions. When snow lingers for a while, one of my favorite activities is noticing the stories it tells: the bounding paths of adventurous squirrels, the neighbor’s cat on the prowl, tiny bird footprints, impressions of angels, or even the passing of a resident fox, all revealed to the discerning eye.
One spring task that sets the stage for a successful growing season is fertilizing the plants in your garden beds. If you already apply one to two inches of compost each year, this often meets most fertilizer needs on its own. To know if you may need to check if you need any during the growing season, watch for signs of nutrient deficiency such as yellowing or undersized leaves, slowed growth, or general plant decline. An at-home soil test can be a simple and informative way to better understand your soil conditions.
In general, early spring or late fall are the best times to apply fertilizer, ideally choosing a slow-release formulation. Nitrogen is a key driver of plant growth, and many slow-release fertilizers provide both immediately available nitrogen and delayed-release forms that continue feeding plants over time. Always follow package directions, and keep in mind that fertilizer applications may not show visible results until the following season. Avoid fertilizing trees and shrubs that have experienced recent root damage, and do not apply fertilizer between July and the first fall freeze, as this can stimulate tender new growth that will not harden off before winter.
Because clay soils are so common in our area, high soil pH is frequently an issue. Elemental sulfur or aluminum sulfate can be effective amendments for lowering pH around established plants. Species such as: rhododendrons, azaleas, magnolias, blue hydrangeas, hollies, and many other evergreens benefit from regular pH monitoring and timely amendments. As a small organic option, used coffee grounds can also be saved and lightly incorporated around root zones to help acidify the soil.
With the right fertilizer choices, you can even gain some protection for tender spring plants against rabbits and deer. Since the 1920s, Milorganite has been a trusted organic fertilizer known for its slow-release nitrogen, iron content, and non-burning formula. This allows for early-season application, with reapplication every few weeks or after heavy rains, helping protect young plants while they establish. While not foolproof, it can be combined with other deterrents, such as foliar sprays or scent-based products including: cayenne pepper, peppermint oil, Irish Spring soap and garlic oil. A University of Minnesota study found that three eggs mixed into a gallon of water and sprayed onto plants was particularly effective. Commercial repellents such as Scram, Liquid Fence, and Plantskydd can also be useful when wildlife pressure is high and browsing persists.
A few thoughtful choices made early can make all the difference, ensuring your garden emerges from winter strong, nourished, and ready for the season ahead.
