Ideal pH Range for Container Tomatoes?

rnewste · March 9, 2008

I'm growing in 31 gallon DIY Earthboxes using Miracle Grow, as well as Sta-Green potting mixes (for trial comparisons). I want to keep all variables such as pH as consistent as possible in doing the "A / B" test of the two potting mixes

Right now, the Miracle Grow mix (with 1 cup of lime added a month ago) is showing approx 6.5 pH. I know you cannot control it to a specific number throughout the growing season, I just wanted advice on the optimum pH range for tomatoes. I've searched a number of threads by GIZZARD and others, but could not seem to find a recommendation on an ideal pH range for container growing.

thanks,

Ray

March 9, 2008	#1
rnewste Tomatovillian™ Join Date: Apr 2007 Location: Campbell, CA Posts: 4,064	Ideal pH Range for Container Tomatoes? I'm growing in 31 gallon DIY Earthboxes using Miracle Grow, as well as Sta-Green potting mixes (for trial comparisons). I want to keep all variables such as pH as consistent as possible in doing the "A / B" test of the two potting mixes Right now, the Miracle Grow mix (with 1 cup of lime added a month ago) is showing approx 6.5 pH. I know you cannot control it to a specific number throughout the growing season, I just wanted advice on the optimum pH range for tomatoes. I've searched a number of threads by GIZZARD and others, but could not seem to find a recommendation on an ideal pH range for container growing. thanks, Ray Last edited by rnewste; March 10, 2008 at 12:39 AM.

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