Can fertilizer and lime be applied at the same time?

Asked March 12, 2020, 11:04 AM EDT

Can lime and fertilizer be applied at the same time? If lime is applied first how long until fertilizer be applied. Will these applications effect seed germination? Assuming fertilizer is NOT weed control.

Anne Arundel County Maryland

1 Response

Lime can be applied anytime that the soil is not frozen.
In most cases though, we recommend fall applications for fertilizer and overseeding, and at rates suggested by a soil test. Excessive nitrogen applications in spring and summer can increase disease problems and reduce stress tolerance.
Spring seeding is more difficult than fall due to weed competition like crabgrass or Japanese stiltgrass, which are germinating around the same time.
If you must seed this spring, you could use a seed-starting fertilizer.
They could be applied at the same time, though it is best to apply lime at rates suggested when soil is analyzed.

Here is more information from our website about fertilization:
https://extension.umd.edu/hgic/topics/lawn-fertilizing

and liming, which also contains a link to soil testing:
https://extension.umd.edu/hgic/topics/lime-and-lawns


Christine