Growing Onions in Florida: A Sunshine State Specific Guide

Onions can be grown in Florida, and they are a great crop to include in your garden. They are a cool-season crop that grows best in cooler weather, so getting a good harvest in Florida may be challenging.

There are several different types of onions that you can grow in the Sunshine State, and each has its unique flavor and texture. If you’re looking for a flavorful and versatile vegetable to add to your garden, consider growing onions in FL.

Growing onions in FL

Growing Onions in FL

Onions are a popular vegetable worldwide as they can be eaten in many different ways and added to various dishes. They are also straightforward to grow. Here are some tips to help you grow onions in Florida:


Onions can be planted either from seed or from transplants. If you are starting from seed, plant the seeds about 1/2 inch deep. If you are transplanting, choose small onions about the size of a golf ball. Plant them in soil rich in organic matter and has good drainage. Space the onions 10 to 12 inches apart in rows that are 18 to 24 inches apart.

Onions are very adaptable and can be planted any time between September and December in Florida. As they are a cool-season crop, it may be best to plant your onions in the fall so that they can grow throughout the winter. Onions need warm days and cooler nights to grow well.

Some varieties of onions that do well in Florida include Granex White or yellow, Red Creole, and White Lisbon Bunching. You can also try growing spring onions or shallots.

Watering requirements

Onions need plenty of water, so make sure to irrigate them regularly. During the growing season, make sure that the soil is kept moist. You can mulch around the onions with straw or grass clippings to help conserve water and control weeds. It’s vital to keep the soil moist after planting onion seeds as this helps with germination.

Sunlight needs

Onions do well in full sun to partial shade. Florida has enough sun to grow onions, no problem. Just like growing tomatoes in Florida, there’s almost too much sun.

Pests and diseases

There are few pests that attack onions in FL. Onion flies may be a problem for some gardeners, but they can be controlled by using insecticides. Other common onion problems include thrips and mites. These insects can be removed by applying an insecticidal soap spray or neem oil to the leaves of the plants.

Onions can sometimes develop a rust disease, but this is usually not serious and will disappear on its own if the weather conditions improve. If you want to avoid this problem, choose resistant varieties. A fungicide can also be applied to affected onion plants.


Rather than using chemical fertilizers its best to add compost to the soil before planting onions in FL. Onion plants start to grow leaves very quickly, so you may want to add some mulch around the base of the plants to help retain moisture in the soil. Using natural products will be beneficial to your health and more eco-friendly.


Onions grow best in soil that is rich in organic matter. You can add compost to the ground before planting, or you can apply a mulch around the base of the plants once they are established. Before planting onions, you should also ensure that the soil is well-draining; otherwise, the bulb could be affected by fungal infections such as root rot. Onions prefer to grow soil with a pH range of 5.5 to 6.5.


Onions can be harvested whenever they reach a size that is appropriate for your particular taste. Onions are traditionally a fall vegetable and taste best when harvested at this time.


If you’re growing onions for storage, remove the tops and dry them completely before storing them. Onions can be stored in a cool, dry place for several months. It’s best to store your onions in a paper bag and place them in a dark place to stop the bulbs from growing. Some varieties of onion can also be pickled or frozen.

Conclusion: Onions Grow Well in FL

Onions thrive in Florida and are a great addition to your garden. They grow quickly and produce plenty of flavourful bulbs that you can eat fresh or store for later use. With a little bit of care, you can enjoy homegrown onions all year long.

If you are looking to grow edible plants, mushrooms grow really well in Florida and can complement many dishes that you create with your homegrown onions.

Good luck growing your onions!