Q&A: Do you need a seedling heat mat?

Starting seeds indoors? You may wonder if a seedling heat mat is necessary. I've grown seedlings with and without it, and here's my take on when you might need it (and when you might not). 

From this episode:

Supplies I use: (links below are affiliate links)

• Seedling heat mat: https://amzn.to/2FYYQ3j 
• LED grow light: https://amzn.to/30qWdR2  
• T5 Fluorescent light: https://amzn.to/2R0Dn08 

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