Intermediate onions are a specific type of onion that have a unique growth pattern. These onions initiate bulb formation when they are exposed to 12-14 hours of daylight. This means that they require a certain amount of sunlight in order to start forming bulbs, which are the edible part of the onion that we commonly use in cooking.
When it comes to growing intermediate onions, they tend to perform best in Zones 5 and 6. These zones have a moderate climate with a balanced amount of heat and cold, which is ideal for onion growth. However, intermediate onions are adaptable and can still form bulbs in any growing zone. So even if you live in a different zone, you can still give them a try and see how they perform in your specific climate.
In terms of planting time, intermediate onions are typically planted in the spring at central latitudes. This is when the weather starts to warm up and the days are getting longer. Planting in the spring allows the onions to have enough time to grow and develop before they are ready to be harvested. However, if you live in a northerly latitude where the winters are longer and colder, it is recommended to plant intermediate onions in early spring. This gives them a head start and ensures that they have enough time to mature before the first frost.
On the other hand, if you live in a mild winter climate, where the temperatures rarely drop below freezing, you can also consider planting intermediate onions in the fall. This allows them to establish their root system during the cooler months and start growing when the weather becomes more favorable in the spring.
When it comes to my personal experience with intermediate onions, I have had success growing them in both spring and fall. In my garden, I usually plant them in the spring because that is the traditional planting time for onions in my region. I have found that they grow well and form nice bulbs when given adequate sunlight and the right growing conditions.
However, I have also experimented with fall planting in milder winters, and the results have been equally satisfying. The onions establish themselves during the cooler months and continue to grow slowly throughout the winter. By the time spring arrives, they are already well-established and ready to take off once the weather warms up. This approach can be particularly advantageous if you want to get an early start on your onion harvest.
Intermediate onions are a versatile variety that can be grown in a range of growing zones. They require 12-14 hours of daylight to initiate bulb formation and perform best in Zones 5 and 6. While they are typically planted in the spring at central latitudes, they can also be planted in early spring or fall depending on your specific climate. So whether you choose to plant them in the spring or fall, intermediate onions can be a rewarding addition to your garden.
