White crystals in mulch and lawn

Asked February 21, 2020, 1:57 PM EST

I have what seem to be white crystals that have appeared in the last few days. They are firm to the touch but crumble into a white powdery substance if you crush them between your fingers. Can you tell what the the crystals are? Is it necessary to treat them and is there a recommended method?

Thanks,
Mike

District of Columbia County District of Columbia

1 Response

We looked at your photos. We cannot say for sure what the white crystals are.
Did you plant any annuals or perennials in the area last year? If so, it may be some fertilizer or perlite leftover from the potting mix.
No treatment of the soil is recommended.

Marian