Broccoli Plant Growing Stages with Pictures

Sheri Dorn is a versatile homesteader and culinary artist with a strong focus on organic and heirloom gardening. Holding a Master's degree in Culinary Arts, she combines her love for cooking and gardening in a unique way. Sheri is an active contributor to online gardening communities and enjoys quality outdoor time with her family and pets.
Learn About Our Editorial Policy

2-Minute Read

Want to know more about broccoli? Learn everything about Broccoli Plant Growing Stages with Pictures in this informative guide!

Broccoli Plant Growing Stages 1

In this article, we’ll cover the various Broccoli Plant Growing Stages and provide you with valuable insights and pictures to help you along the way.

Broccoli Plant Growing Stages

1. Germination Stage

  • Sowing the Seeds: This is the first of Broccoli Plant Growing Stages. Broccoli seeds are small and are typically sown at a depth of about 1/4 to 1/2 inch. The seeds can be started indoors 6-8 weeks before the last expected frost or directly sown into the ground once the danger of frost has passed. They should be spaced about 3 inches apart if starting indoors in pots or trays.
  • Germination Time: Under ideal conditions, broccoli seeds typically germinate within 3-10 days. However, this can vary depending on the specific variety and the environmental conditions.
  • Sprouting: The first sign of germination is the appearance of the seedling’s sprout, which will push up through the soil. The first two leaves that appear are known as cotyledons or seed leaves. These are not true leaves but serve to provide initial photosynthesis for the seedling until the true leaves appear.

2. Seedling Stage

Broccoli Plant Growing Stages 2

  • Cotyledon Stage (10-14 days): The first leaves that appear are known as cotyledons or seed leaves. These leaves are not true leaves and look different from the later leaves.
  • First True Leaves (2-3 weeks): After the cotyledons, the first set of true leaves will appear. This is usually a pair of single-lobed leaves, and they will start to give the plant the characteristic broccoli appearance.
  • Additional Leaf Stages (3-6 weeks): Broccoli plants will continue to develop more leaves and grow taller. By about 6 weeks, the seedling should be about 4-6 inches tall and have multiple sets of leaves.

During the seedling stage, which is the second in Broccoli Plant Growing Stages, the plant needs plenty of light. If growing indoors, keep them in a sunny window or under grow lights. Broccoli seedlings also require consistent watering. The soil should be kept moist but not waterlogged.

3. Vegetative Stage

Third in the Broccoli Plant Growing Stages, in which the plant enters the vegetative stage. This is when the plant grows rapidly and starts developing the mature characteristics of a broccoli plant.

  1. Leaf Development (2-6 weeks after sowing): During the early part of the vegetative stage, the broccoli plant develops more leaves. The leaves will continue to grow larger and increase in number. The plant will also start growing taller.
  2. Thickening of the Stem (4-8 weeks after sowing): As the plant continues to grow, the stem will become thicker and sturdier to support the increasing weight of the plant.
  3. Formation of the Central Head (6-12 weeks after sowing): The plant will begin to develop a central head, which is the part of the plant that we typically eat. The central head usually starts as a small bud in the center of the plant, surrounded by leaves. It will grow larger over time.

Short on space? Learn How to Grow Broccoli Sprouts here

4. Harvesting Stage

Broccoli Plant Growing Stages 4

Last of the Broccoli Plant Growing Stages, broccoli moves into the reproductive stage, which eventually leads to the harvest. During the reproductive stage, broccoli produces flower buds that form the head, the part we typically eat. Harvesting is a critical process in the lifecycle of a broccoli plant.

  • Timing: Broccoli typically takes between 50-100 days to mature, depending on the variety and growing conditions. You’ll want to start checking your broccoli heads regularly as they grow, looking for the signs that it’s time to harvest.
  • Signs of readiness: Broccoli is ready to harvest when the head is fully formed but before the individual buds start to open and yellow flowers appear. The buds should be firm, tight, and green. The head should be 4-8 inches in diameter, depending on the variety. If you see yellow flowers, it’s a sign that the broccoli is bolting and is past its prime for eating, though it can still be consumed; the flavor may just not be as sweet.
  • Harvesting process: Cut the stem about 5-6 inches below the head at a slant to allow water to slide off. It’s best to do this in the morning before the soil heats up, as the cool temperatures help keep the head fresh.
  • Post-main head harvest: After the main head is harvested, the plant will continue to produce smaller side shoots, which can also be harvested in the same way when they are 1-2 inches in diameter. This can extend the harvesting period to several weeks.

Broccoli Plant Growing Stages – Frequently Asked Questions

1. How long does it take for broccoli seeds to germinate?

Answer: Broccoli seeds typically take around 5 to 10 days to germinate, depending on the environmental conditions.

2. Can I grow broccoli in containers?

Answer: Yes, broccoli can be successfully grown in containers, provided the containers are large enough to accommodate the plant’s root system.

3. How do I prevent pests from damaging my broccoli plants?

Answer: Implementing organic pest control methods such as handpicking pests, using row covers, and attracting beneficial insects can help protect your broccoli plants.

Want to learn more? Find out if Broccoli is Man-Made or Natural

Recent Posts

Join our 3 Million Followers:


Related Articles


Please enter your comment!
Please enter your name here