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Will growing them on pots make them more successful?

Why, friend? Do they wrinkle? It could also be due to a lack of sulfur. Try buying a packet of powdered sulfur and remove the wrinkled parts of the plant. This way it can last longer.

Somehow the seed does not germinate 😤

I understand, perhaps it's the climate in your region. They prefer warmer places. Peppers love the sun. It's always recommended to plant the seed no more than 2 cm deep.

If it doesn't germinate, buy a seedling; that way it will already be large and close to producing peppers.