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Carrot Growing Guide
Growing Guide

Carrots

This Carrot Growing Guide will walk you through how to plant, grow, and harvest sweet, crisp carrots. Learn the best times to plant, how to space and water properly, and how to keep your roots straight and vibrant. We’ll also cover soil prep, pest management, and the best carrot varieties for your garden.

Quick Overview

Category Details
Planting Time Spring and early Fall
Soil Temperature 55–65°F (germinates best around 65°F)
Sunlight Requirements Full sun (6+ hours/day)
Watering Requirements 1" per week
Spacing (In-Ground) Rows: 24–36", Plants: 1–2"
Spacing (Raised Bed) 3–6" apart
Fertilizer Guidelines Moderate feeder – avoid high nitrogen

Growing Guide Details

Plant Classifications

Carrots come in several main types, each with distinct shapes and uses in the kitchen. Danvers types are classic, tapered carrots that do well in a variety of soils. Nantes types are sweet and crisp with blunt ends—great for fresh eating. Imperator carrots are long and slender, perfect for deep, loose soils and juicing. Chantenay types are shorter and broader, great for heavy soils.

What Variety to Choose?

💡

Scarlet Nantes: Sweet, crisp roots—perfect for fresh eating and juicing.

Danvers 126: Classic, reliable heirloom for varied soils; great flavor and storage.

Bolero: Uniform Nantes-type with strong tops and excellent disease resistance; great for market growers.

When to Plant

Spring: Sow seeds 2–3 weeks before last frost.

Fall: Sow 8–10 weeks before your first fall frost.

• Pro Tip: For best germination, avoid planting during hot spells. Carrots thrive in temps between 55–65°F.

Light & Space Requirements

Sunlight: Full sun (6+ hours/day) is essential.

In-Ground:

Row spacing: 24–36 in

Plant spacing: 1–2 in

Raised Beds: 3–6 in between plants

Pro Tip #1: We recommend using seed tape for carrots to help get the correct spacing and density in your space.

Pro Tip #2: Carrot seed are small, and one of the biggest issues is planting them too deep. Lightly cover and keep wet. They can take 10-20 days to come up.

Purple Haze Carrot

AAS - Purple Haze Carrot

Soil & Fertility

Soil Requirements:

pH between 6.0–7.0

Rich in compost or organic matter

Loose, well-draining soil

Fertilizer Schedule:

Before Planting:
Mix 1½ cups of HOSS Complete Organic Fertilizer per 10 ft of row

2 Weeks After Planting:
Sidedress with 2 cups of HOSS Complete Organic Fertilizer per 10 ft row.

If using Fertilizer injector, 1 cup 20-20-20 Fertilizer and 1-2 cups microboost per 20 ft row.

Every 2 Weeks After:
Side dress of one cup of Hoss All-In-One Fertilizer per 10 ft of row.

If using fertilizer injector, Mix 1 cup 20-20-20 Fertilizer and 1-2 cups microboost per 20 ft row.

Pest & Disease Control

Pest/Disease Control Method
Leaf Miners
Aphids
Army Worms
Whiteflies
Cutworms
Mole Crickets
Wireworms
Root Knot Nematode

Proper Crop Rotation

Southern Blight

Proper Crop Rotation

Powdery Mildew
Leaf Spots
Grey Mold

Irrigation & Watering Schedule

• Needs 1–1.5” water per week

• Once they emerge 1" per week is sufficient

• Keep soil consistently moist (not soggy)

• Use Drip Irrigation Kits to avoid wetting leaves

Scarlet Nantes Carrot

Scarlet Nantes Carrot

Harvesting & Storage

Harvest: Carrots are ready when roots reach full color and ½–1″ diameter, typically 60–80 days after planting. Loosen soil with a fork before pulling to prevent breaking roots.
Storage: Cut off greens to prevent moisture loss. Store unwashed carrots in a plastic bag in the refrigerator for up to 2 months. For long-term storage, layer in damp sand or sawdust in a cool, dark area (32–40°F).
Preservation Tip: Carrots can be blanched and frozen for up to 12 months or pressure-canned for pantry storage.

Sustainability & Garden Tips

• Rotate carrots with non-root crops each year to prevent soil pest buildup.

• Mulch lightly to retain moisture and suppress weeds.

• Sow thickly, then thin early to avoid crowding.

• Let a few plants flower to attract beneficial pollinators.

• Avoid over-fertilizing with nitrogen—it causes lush tops but small roots.

FAQs

Why are my carrots short or forked?

Soil compaction, stones, or excess nitrogen cause deformed roots. Use loose, sandy loam and avoid fresh manure.

Can I grow carrots in containers?

Yes—use a container at least 12″ deep with loose soil and plant shorter types like Parisian or Little Finger.

Why are my carrot tops growing but roots are small?

Overcrowding or excess nitrogen encourages leaf growth instead of roots. Thin seedlings to 2″ apart.

Can I leave carrots in the ground through winter?

In mild climates, yes—cover with mulch and harvest as needed until the soil freezes.

How can I improve germination?

Carrot seeds germinate slowly. Keep soil evenly moist and cover rows with burlap until seedlings appear.