Sedums can certainly be grown in old sinks or containers but we personally wouldn’t grow them indoors. They need a lot of direct sunlight and warmth and thrive outdoors. Outdoors, you can certainly plant sedum in an old sink since it has drainage. Make sure the water can drain out easily or you’ll need to put the sink on blocks. Put gravel or small rocks in the bottom of the sink, taking care not to block drain. And then just fill it with compost and dig in your plants.
Sedums can certainly be grown in old sinks or containers but we personally wouldn’t grow them indoors. They need a lot of direct sunlight and warmth and thrive outdoors. Outdoors, you can certainly plant sedum in an old sink since it has drainage. Make sure the water can drain out easily or you’ll need to put the sink on blocks. Put gravel or small rocks in the bottom of the sink, taking care not to block drain. And then just fill it with compost and dig in your plants.