@kraeon I am not sure. Not that I can tell. But I found seed pods last year in trying to germinate. It'll be interesting to see if it works! My assumption is if I had left the seeds, at least a few would've grown on their own...
Most crocus are relatively straight forward to germinate from seed, in particular the most popular spring flowering varieties. Although it will take a few years before your new plants come into flower this is an excellent way to build up large numbers of stock.
Crocus seeds need a warm period followed by a cold spell in order to initiate #germination, but if the seasonal temperatures are sporadic, dormancy will not be broken and the seed will need to wait until the following year. Any longer than that and the seeds tend to lose their viability. If this becomes a problem then you may need to refrigerate them for a month or so to break the dormancy and initiate germination. #stratification
It can take anywhere between 1 and 6 months for the seeds to germinate with the spring flowering varieties expected to germinate any time between January and March. Because of this 'winter' germination pattern it's a good idea to try and keep these new plants from freezing again once germinated. At this stage they are extremely vulnerable and can easily be killed off if frozen when wet.
Now that they are growing they can be periodically feed with a weak fertilizer as this will to help bolster up the young corms. Re-pot them every year into a richer compost such as John Innes 'No 2 or 3' but again add plenty of extra horticultural grit or vermiculite for drainage. You can also give them a good top dressing of grit to help keep the neck of the plants dry. By the third year your new plants should come into flower and are now sturdy enough to plant outside in the garden.