So, just to clarify, I’ve updated the code in the block template and this is it, pasted straight from the site – no leeway for typos!
$posts = get_field('info_from_growing');
if( $posts ) {
foreach( $posts as $post) { // variable must be called $post (IMPORTANT)
setup_postdata($post);
$scientificName = the_field('scientific_name');
$family = the_field('family');
$scientificTreeFamily = the_field('scientific_tree_family');
// do something with the values
}
}