There's a larger issue here, one that's apparent when you consider that 94% of the seed varieties available to farmers and gardeners in 1900 have been lost, never to be grown again.
How Long Can I Store Heirloom Seeds
Succulent Plant Information: succulents in a planter
Agronomy, Free Full-Text
Why You Should Grow Heirloom Seeds • The Prairie Homestead
Heirloom Vegetables - Planting the Seed - - The Adirondack Almanack
Heirlooms: Saving Seed from Extinction
Seed Saving Collection for First-Timers — Seed Savers Exchange Blog
Saving Seeds Today Protects Food Systems Tomorrow – Food Tank
Heirlooms: Saving Seed from Extinction
7 Heirloom Vegetables Saved from Extinction (That You Can Plant in Your Garden)
Heirloom plants: Saving the nation's seeds from extinction - BBC News
Heirloom Seed Saving at Shaker Village Rural Mom
Heirloom Vegetables - Planting the Seed - - The Adirondack Almanack
One seed at a time: Meet the woman saving Turkey's heirloom plants from extinction