Bulb Fennel: grew well, tasty though not very large, find a bigger variety for next year
Carrots: nice carrots from both plantings, good varieties (try settling on just 2 orange varieties?), good schedule, should have been thinned better
Celery: good overall, about the right amount, lost one seedling early and a few more plants later, blanch earlier next year?
Parsnips: added (maybe too much) sand to the soil, another bad year for germination – even second seeding, some leaf damage (by beetles?), overrun by sweet potatoes, a few were split or stubby, try to improve for next year