They have two different dynamics, but without breeding really involved in your goal, you can ignore it.
On motherplants it’s the most common case happening in breeding : thinking that this old woody tree initially planned by the nature to live only one year … will last forever as it, and on top of its performances. Not more than 6 months for a motherplant that you love really, and you will be safe for ages even if you’re just producing clones to smoke with it.