The Echo Harbor Book of the Soil is a seed catalog frequently cited on The Hidden Almanac. They are occasionally sponsors of the show, as well.
- Echo Harbor Purple Top (Episode 357)
- Order seeds now. It is imperative. You have been warned. (Episode 234)
- Get on our mailing list today to have the dark book sent directly to your mailbox. You’ll receive a 10% gift coupon and automatic entry into the lottery. (Episode 300)
- The dark heralds raise their trumpets. There is smoke on the wind. The seed catalog is coming. (Episode 307)
- Place seed orders now for the coming season, or hold your peace when the end comes. (Episode 370)
- It is coming. Are you prepared? (Episode 502)
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