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Zucchini Growing Guide0% read

Zucchini Growing Guide

Growing Zucchini is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.

EasyFruitAnnual~50 days to maturityWarm Season
Zucchini illustration

At a Glance

Difficulty

Easy

Category

Fruit

Sun Exposure

Full Sun

Frost Tolerance

Frost Tender

Growing Zones

Zones 3, 4, 5, 6, 7, 8, 9, 10

Plant Family

Cucurbitaceae

Growing Season

Warm Season

Plant Lifecycle

Annual

Also grows well as

FruitingFruit
Zucchini

When To Start

First Chance to Plant

10 Days After Last Frost

Last Chance to Plant

60 Days Before First Frost

When should you plant Zucchini?

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

Your Zucchini Planting Window

Start planting

May 15, 2026

Last chance

Sep 10, 2026

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The Journey Ahead

Zucchini's Lifecycle

Zucchini seedling
1

Seedling

Zucchini mature
2

Mature Plant

Zucchini seeds
3

Seed Production


Step 1

Prepare Your Space

2 cm

Seeding Depth

60 cm

Plant Spacing

90 cm

Row Spacing

1

Plants / Sq Ft

Vertical Growing

Yes – Trellis.

Method: Trellis.

Succession Planting

Yes.

Good Companions

Cornbeanspeasradishesmarigoldsnasturtiumsborageoreganodillmint

Bad Companions

Potato

Step 2

Planting & Sprouting

Expect sprouts in 57 days

Growing Tips

  • 1Plant zucchini in a spot that gets full sunlight for at least 6-8 hours a day.
  • 2Ensure the soil is well-draining and rich in organic matter, and water consistently to keep the soil moist but not waterlogged.
  • 3Space plants about 2-3 feet apart to allow for good air circulation, which helps prevent diseases; use row covers or natural predators to manage pests like squash bugs.
Zucchini seedling

Seedling Phase


Step 3

Growth & Maturity

~50

Days to Maturity

75 cm

Mature Height

90 cm

Mature Width

Pests to Watch For

Squash bugcucumber beetleaphidsquash vine borerspider mite

Diseases to Watch For

Powdery mildewDowny mildewBacterial wiltMosaic virusBlossom end rot
Zucchini mature plant

Mature Plant

Step 4

Harvesting

Harvest Window

45 days

When to Pick

Pick when fruits are small and tender

How to Harvest

  • 1Harvest zucchini when the fruit is firm and about 6 to 8 inches long.
  • 2Use a sharp knife or pruning shears to cut the stem about an inch above the fruit to avoid damaging the plant.
  • 3Handle the plant gently to prevent breaking stems or leaves.

Step 5

Saving Seeds

How to Save Seeds

Saving seeds from your zucchini plant is easy and rewarding! Simply let a few zucchinis grow larger and fully mature on the vine until their skin hardens—these are the ones you’ll use for seeds. Cut them open, scoop out the seeds, and rinse them well to remove any pulp. Spread the seeds out on a paper towel or plate and let them dry completely for about a week in a cool, airy spot. Once dry, store your seeds in a labeled envelope or jar in a cool, dry place until next season. You’ve got this—saving seeds is a simple way to keep your garden growing year after year!

Zucchini seed production

Seed Production

Zucchini seeds

Feeling inspired?

Grow Zucchini from seed.

One plant. Probably more zucchini than you can eat. Buy a pack and get started.

$2.25

CAD

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