Mustard greens germinate very quickly and also grow very quickly. Because of this, if they are planted thickly they can quickly block out other things nearby, which could be a good thing or a bad thing, depending on if you want or need to block other plants out.
I usually like to plant mine mixed among other things, but in this patch I've planted them all together.
The toughest and best plants will survive!
Striving to grow things as naturally, simply, and cheaply as possible!
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Location: Zone 7b/8a Temperate Humid Subtropical, Eastern NC, US