From

Location

Message

Date Posted

Cincinnati, Oh

which percent block is best to use

6/19/2016 3:23:04 PM

Home of happy lil plants

ohio no need for over 30%

6/19/2016 6:28:12 PM

Colorado

23% white greenhouse megastore

6/19/2016 7:00:53 PM

On top of Brush Mountain, Pa.

30% seems to work well for tomatoes.

6/20/2016 11:14:55 AM

Midway, UT

I'm with cojoe. 18-25% I think is best for most climates.

6/23/2016 2:26:56 PM