I think they base the value of the bonus plant on the amount you spend overall. I bought 2 of their new releases this year so it pushed my total up a bit. Less than last year, though! Last year they sent Garden Treasure as the bonus root. Funny--I knew one of friends really, really loves yellow flowers so I gave the bonus one to her. Of course I had ordered Garden Treasure last fall, anyway, so I just picked the root that looked to have the most eyes and planted that one. The one I gave Cat had less eyes but did have some massive feeder roots. Hers bloomed this spring, mine didn't!
I was getting a box of roots together for my mother-in-law and her brother, my 2 favorite in-laws, so I split Old Faithful to send her a piece as well. Memorable bonuses from Hollingsworths so far have been Old Faithful, Garden Treasure and Blonde Vision. I traded the extra root of Blonde Vision thinking that it probably wouldn't do well here anyway. It doesn't increase quickly but the blooms are really special, sorry I only have the one now!
