, they don't get any light in the garage and that is why they are only lightly colored. If the weather cooperates, put the outside: for the first one to two weeks, put them outside in part or full shade, and under an overhang if possible so night frosts can't settle on them. If night temperatures are predicted to be 2-3ºC or lower, bring them back into the garage until temps are above that. If this means you can only bring them out during the daytime, I would still do that. Without light, stems will be very week, leaves distorted and although the plants would still be healthy and come back normally in the following year, this season they won't be so enjoyable to look at. After this first 1-2 weeks, they can go to your permanent location.
If it were me, I would just snip off the extra little sprouts at ground level, rather than trying to dig them out. You won't kill the little bulblets that they originate from, just put those bulblets in stasis until next year. In fall when everything dies back, then remove them. It is not terrible if you leave them grow, but these non-flowering bulbets will compete for sun/water/nutrients with the mother bulb that will produce the flowers. Letting those bulblets leaf out will produce a more leafy pot and a nicer looking plant, but will also cause less air circulation among and through the leaf area, that can encourage leaf diseases like botrytis.