How to Grow Cauliflower in a Backyard Garden

How to Grow Cauliflower

Cauliflower is a versatile and nutritious vegetable that can elevate your culinary creations. Growing cauliflower in your backyard garden not only provides you with fresh produce but also offers a rewarding gardening experience. With the right conditions and care, you can cultivate this lovely brassica right at home. Here’s a comprehensive guide on how to grow cauliflower successfully.

Choosing a Cauliflower Variety to Grow

Before you plant, select the right cauliflower variety for your garden. There are several types, including:

  • White Cauliflower: The most common variety with creamy white florets.
  • Purple Cauliflower: A visually striking option that's rich in antioxidants.
  • Green Cauliflower (Broccoflower): A cross between broccoli and cauliflower that has a milder flavor.
  • Orange Cauliflower: High in beta-carotene, this variety is not only nutritious but also adds color to your dishes.

All these are great options to grow in a backyard garden. Many gardeners choose to grow multiple types to provide a colorful arrangement of cauliflower florets.

How to Grow Purple Cauliflower


Preparing the Soil to Plant Cauliflower

Cauliflower prefers well-drained, fertile soil. You'll want to choose a spot that gets full sun for at least six hours a day. Prior to planting, amend the row or raised bed with Coop Gro organic fertilizer 1-2 weeks before planting. You can also do this on the day of planting, but doing it prior to planting will provide time for the organic fertilizer to activate in the soil.

How to Plant Cauliflower

Cauliflower is a cool-season vegetable that can be grown in the fall and spring months in most climates. For those with mild winters, it can be grown throughout the entire winter. Cauliflower plants can easily tolerate a light freeze, but a hard freeze can damage the heads as they're developing.

Cauliflower should be planted from transplants, which you can purchase locally or grow yourself. If growing your own cauliflower transplants, start seeds in a greenhouse or indoors 6-8 weeks before the intended in-ground planting date.

Place cauliflower plants approximately 12" apart in your garden or raised beds. This will give the plants room to grow and expand without compromising the size of the eventual cauliflower head. Water daily after transplanting until the cauliflower plants start to grow and form new leaves.

How to Plant Cauliflower


Tips for Growing Cauliflower

Cauliflower needs about 1-1.5 inches of water per week. Ensure the soil remains moist, especially during hot weather, as inconsistent watering can cause the heads to bolt (flower prematurely).

Feed your cauliflower plants with Coop Gro organic fertilizer every 3-4 weeks. Sprinkle a handful around each plant and gently mix into the soil with your hand or a garden tool. Fertilizing before a rain will help it dissolve and activate faster.

Keep the garden bed free of weeds that compete for nutrients. Use mulch to suppress weeds and retain moisture. Organic materials like straw or grass clippings work well.

Monitoring Cauliflower Pests and Diseases

Cauliflower is susceptible to pests such as aphids, cabbage worms, and root maggots. Regularly inspect your plants for any signs of infestation. You can use:

  • Handpicking: Remove pests by hand when you spot them.
  • Insecticidal Soap: A gentle way to control pests without harming beneficial insects.
  • Row Covers: Protect seedlings from pests while allowing sunlight and moisture to penetrate.

How to Grow Orange Cauliflower


When to Harvest Cauliflower

Your cauliflower will typically be ready for harvest in about 70-100 days, depending on the variety. Look for heads that are firm, compact, and fully developed, usually about 6-8 inches in diameter. To harvest, use a sharp knife to cut the head from the plant.

If you're expecting freezing temperatures as the heads are developing, you'll want to protect them as they can turn to mush once frozen. If you're only expecting a light freeze, you can do this by wrapping the leaves around the head with a rubber band. If you're expecting a hard freeze, consider harvesting the heads before they mature to salvage them.

Back to blog