Even if you just like orange carrots, they come in different shapes and sizes:
Imperator Seed Ideas:
Imperator 58
Tendersweet
Danvers Seed Ideas:
Danvers 126 – this orange carrot grows up to 7 inches long
Danvers 126 Half Long
Chantenay Seed Ideas:
Shin Kuroda – this one is good for heavy soil.
Red Cored Chantenay – this variety has orange skin and a red center
Royal Chantenay
Nantes Seed Ideas:
Scarlet Nantes
Mini Seed Ideas:
Little Finger
Tonda di Parigi – this variety only grow up to 2 inches and is a French heirloom
Rainbow
Colorful Seed Ideas:
Kyoto Red
Cosmic Purple – this variety is purple on the outside and orange inside
Purple Dragon
Lila Lu Sang – this one variety has purple skin and orange flesh.
Yellow or Amarillo – this type is yellow on the outside and inside
Uzbek Golden – this is another yellow one.
Black Nebula – this variety has black skin and flesh.
Pusa Asita Black
Kuttiger – this variety has white skin and flesh.
I usually get my carrot seeds from Botanical Interests, MIgardener and Baker Creek.
