"To harvest carrot seeds, you need to let the carrot plant flower and go to seed in its second year. Once the flower heads (umbels) turn brown and dry, you can harvest them, allow them to dry What are the seed pods on potato plants? 1,196 Niger Seeds Royalty Free Images, Stock Photos & Pictures Shutterstock Not sure what size pots to use for your veggies or herbs?, Shallow pots, 1520 cm, suit lettuce, radish and chives.Deeper pots, 2530 cm, are needed for tomatoes, peppers or eggplants. Also ensure