Looks good & should make lots of growth, why ericaceous compost ?.
Agree with Ed I lost my 3 , they were wrapped but not water proof, the new one is staying in a pot for under the bench time in winter

What a stunner, amazing age too

Quite chunky,

Lovely, are you still watering them ?. No flowers on mine

Its normally immature agave plants that do this, just strip them off.

Me after Sunday dinner

I'm now on the hunt for a variegated one, my friend sent me a photo of his, always another plant to wish after

You don't get the quality of scammers these days .

That's fast from seed to flowering, well done, do you feed often ? or just a happy plant.

Looking good