WalletClearly

๐ŸŒพ Seed Starting Supply Calculator

Estimate supplies and cost to start seeds indoors โ€” trays, heat mats, grow lights, and soil mix.

Project Details

6-12 cells per variety gives room for thinning

Your Estimate

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Adjust the fields to see your estimate.

Cost Breakdown

Pro Tips

  • Start seeds 6-8 weeks before your last frost date
  • Bottom watering prevents damping off โ€” set trays in water and let soil wick up
  • Harden off seedlings by putting them outside for increasing hours over 7-10 days
  • Most seeds germinate best at 70-80ยฐF soil temperature

Prices are estimates. Links go to Amazon โ€” we may earn a small commission at no extra cost to you.