Choose the Right Onion Variety for You!
Onion Planting Map
Onions have two distinct growing phases: the vegetative and bulbing phase. Onion varieties are categorized based on the average day-length when they start the bulbing phase.
Use this map to pick the right onion varieties for your area. Choosing the right day-length varieties for your area will ensure you'll grow the largest onions possible.
If you're on the edge of any of the distinct day-length regions, you can grow either of those types. For example if you live in northern TX, you can grow intermediate day or short day varieties.
Short Day OnionsShop Short Day Onions
These varieties perform best in southern latitudes where winters are mild. Choose from our selection of red, white, and yellow short-day onion plants.
Intermediate Day OnionsShop Intermediate Day Onions
These varieties perform best in the middle of the country and established plants will start bulbing when day length reaches 12-14 hours per day.
Long Day OnionsShop Long Day Onions
These varieties require 14-16 hours of daylight for bulbing and perform best in northern latitudes. Try them all with our Long Day Onion Plant Collection!