Well, bronchiectisis makes one more vulnerable to bacterium (re: pseudomonas, Mac). Because it allows them more time to flourish in your airways, as the motility mechanism in your bronchioles is impaired. I have read that pseudomonas is easily found in mulches and dirt. I was all set for chickens when I found out about my mycobacterium avium complex growth in my sputum cultures. So decided against them. I still garden a bit but wear an n95 mask to decrease risk of inhalation. I know this is a lot of information, but, part of my Mac also has to do with reflux from non diagnosed hiatal hernia. Bending over to weed is still a big part of my gardening, and it does irritate the sputum production problem! …but what’s a girl to do?