Greening up for spring

As long as temperatures remain well above freezing, fertilizers and lime may be applied. Now that Thanksgiving is past and most of us have thankfully put our lawnmowers and power equipment away for the winter, there are still some tasks that should be accomplished before winter to ensure strong and healthy lawns in spring.

The most important fertilization of the year for turf is the fall application.

A good year-long fertilization program is desirable but this particular application is essential for preparing turf for the coming growing season.

Whether you fertilize or not, come spring, your turf will produce extensive apical tip growth — this in turn will use up a tremendous amount of energy the plant has stored in its roots.

If the turf has adequate stores and necessary nutrients and minerals available then it has a better chance of thriving.

If, on the other hand, those necessary elements are not present, then the turf plant can become depleted thereby weakening it and increasing the chances for disease and weed infestation.

Another related aspect of winter turf management is soil PH, or acidity versus alkalinity. Without a soil test it is impossible to know actual levels of soil PH, but the general norm in western Washington is a tendency towards acidic.

It is therefore the accepted norm to apply lime in order to counter this and to achieve a more neutral PH level. This potentially frees up elements that might otherwise be locked up within soil particles and unavailable to the turf.

One caution: When using any type of fertilizer, chemical or mineral on your turf, and especially in granular form, be sure always to sweep or blow any excess off all concrete and paved surfaces. Iron, for instance, is beneficial and present in many fertilizers but can leave a hideous stain on your walk or patio.

While it may be too late in the season to achieve a pre-winter green up, taking action now will enhance overall health and spring performance.

As long as temperatures remain well above freezing, fertilizers and lime may be applied. Immediate visible results will further diminish as temperatures go down. Always use fertilizers and other turf products carefully, follow recommended application rates and spread evenly to insure even uptake.

Gary Anderton owns Garrison’s Landscaping,