The Plant Traveller: 3 Big Cacti for U carnegiea stetsonia terscheckii

These are 3 of largest cacti I have ever seen. Try growing them. Yes, it will be a challenge, but the challenge is worth it. All three can be grown from seeds as most of these are cold hardy enough for temperate climate.
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[@kaowinston]

All of these three Cactus specimens can easily be grown from seeds. If you are too eager to wait, then you can buy young plants at a nursery.

[@raulsanchez-hornerosmartin4337]

How temperature cold stetsonya resists outdoors?

[@kaowinston]

They can survive winter, as they are native to Argentina. Avoid frost for young plants.