Skip to main content
Limitless Growth
Broccoli Growing Guide0% read

Broccoli Growing Guide

Broccoli is a great next step in your growing journey. Follow this guide from planting to harvest and you'll do great.

ModerateVegetableAnnual~60 days to maturityCool Season
Broccoli illustration

At a Glance

Difficulty

Moderate

Category

Vegetable

Sun Exposure

Full Sun, Partial Sun

Frost Tolerance

Frost Hardy

Growing Zones

Zones 3, 4, 5, 6, 7, 8, 9

Plant Family

Brassicaceae

Growing Season

Cool Season

Plant Lifecycle

Annual

Also grows well as

Leafy GreenPerennial Vegetable
Broccoli

When To Start

First Chance to Plant

45 Days Before Last Frost

Last Chance to Plant

60 Days Before First Frost

When should you plant Broccoli?

Your planting dates depend on where you live. Sign up to unlock dates personalized to your location.

Your Broccoli Planting Window

Start planting

May 15, 2026

Last chance

Sep 10, 2026

Unlock Your Dates
100% free No credit card Takes 30 seconds

The Journey Ahead

Broccoli's Lifecycle

Broccoli seedling
1

Seedling

Broccoli mature
2

Mature Plant

Broccoli seeds
3

Seed Production


Step 1

Prepare Your Space

0.5 cm

Seeding Depth

30 cm

Plant Spacing

60 cm

Row Spacing

1

Plants / Sq Ft

Vertical Growing

Yes – Tower.

Method: Tower.

Succession Planting

Yes.

Good Companions

Beetscelerychamomiledilllettucemarigoldmintnasturtiumonionsrosemarysagespinach

Bad Companions

StrawberryTomatoPole Beans

Step 2

Planting & Sprouting

Expect sprouts in 510 days

Growing Tips

  • 1Plant broccoli in a spot that gets full sun for at least 6 hours a day.
  • 2Keep the soil consistently moist but not waterlogged, watering deeply once a week.
  • 3Use well-draining, fertile soil with a pH between 6.0 and 7.0, and space plants about 18 inches apart to allow for good air circulation.
  • 4To manage pests, use row covers to protect young plants and regularly check for and remove caterpillars by hand.
Broccoli seedling

Seedling Phase


Step 3

Growth & Maturity

~60

Days to Maturity

60 cm

Mature Height

45 cm

Mature Width

Pests to Watch For

Cabbage wormsaphidsflea beetlescabbage looperscutworms

Diseases to Watch For

Black rotDowny mildewClubrootAlternaria leaf spotBacterial soft rot
Broccoli mature plant

Mature Plant

Step 4

Harvesting

Harvest Window

30 days

When to Pick

Harvest before flower heads open

How to Harvest

  • 1Harvest broccoli when the heads are firm and tight, before the yellow flowers start to bloom.
  • 2Use a sharp knife to cut the main stem about 5-6 inches below the head, leaving some side shoots for future harvests.
  • 3Avoid damaging the plant by cutting at an angle and not pulling or twisting the stem.

Step 5

Saving Seeds

How to Save Seeds

Saving seeds from your broccoli plant is a rewarding and simple process that any new grower can master! Allow a few healthy broccoli plants to flower and form seed pods, letting them dry on the plant until they turn brown and brittle. Gently collect the pods, break them open, and gather the tiny seeds inside. Store your seeds in a cool, dry place in a labeled envelope or jar, and they’ll be ready for planting next season. With just a little patience, you’ll have your own homegrown broccoli seeds—proof that you can do it and keep your garden growing year after year!

Broccoli seed production

Seed Production

Broccoli seeds

Feeling inspired?

Grow Broccoli from seed.

The cool-season classic — and side shoots keep producing for weeks. Buy a pack and get started.

$2.25

CAD

In Stock
Free shipping over $75 Free growing guide included Ships across Canada