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Mixing seed mix with peat moss.

Can i mix seed starting mix with peat moss to increase the amount/volume. Im already finished bag #2 of my promix seed starting. I really don't want to have to buy so many bags each year. If i can do this, what would the ratio be?

I have read that straight peat is a bad idea.

I have a short growing season. So i need to fill trays that are large enough to keep the seedling in for several weeks with out risking the seedling choking itselft out.


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Joined: Thu May 22, 2014 1:26 am
Location: Upstate, SC

Re: Mixing seed mix with peat moss.

I fill my cups 2/3 full with cheap potting mix and the top 1/3 with seed starting mix. It's worked out perfectly so far!
Upstate, SC
USDA Zone 7b/ Sunset Zone 31

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Green Thumb
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Joined: Tue Mar 03, 2009 10:38 pm
Location: Mississippi Gulf Coast - zone 8b

Re: Mixing seed mix with peat moss.

I mix mine about 50/50 with peat moss. It seems to work okay for me.

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Super Green Thumb
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Joined: Sun Feb 15, 2009 11:04 pm
Location: TN/GA 7b

Re: Mixing seed mix with peat moss.

Peat moss is very moisture holding. I don't use seed starting mix at all, just regular potting mix. If I wanted to increase the volume, I would prefer to use something that helps drainage, like perlite, rice hulls, coarse sand, crushed rock, etc.
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