HeirloomContainer OK

Celery Microgreens

Apium graveolens

Medium-large, relatively smooth round roots with buff-colored skin. Interiors are white and flavorful and resist pithiness and hollow heart. Also available with NOP-compliant pelleting.

Harvest

100d

Days to harvest

📅

Sun

Indirect light

☀️

Zones

3–6

USDA hardiness

🗺️

Height

1-3 feet

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Start Indoors

Harvest

Start Indoors

Harvest

Showing dates for Celery Microgreens in USDA Zone 7

All Zone 7 microgreen →

Zone Map

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Celery Microgreens · Zones 3–6

What grows well in Zone 7? →

Growing Details

Difficulty

Moderate

SpacingDense planting, 2-3 seeds per square inch

SoilFine soilless growing medium or seed starting mix

pH6.0-7.0

WaterLight misting 2-3 times daily, maintain consistent moisture

SeasonWarm season annual

FlavorIntense celery flavor, aromatic, slightly bitter with fresh herbal notes

ColorMedium to dark green with serrated edges

Size1-3 inches tall with small compound leaves

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	January – December	—	—	January – December
Zone 4	January – December	—	—	January – December
Zone 5	January – December	—	—	January – December
Zone 6	January – December	—	—	January – December
Zone 7	January – December	—	—	January – December
Zone 8	January – December	—	—	January – December
Zone 9	January – December	—	—	January – December
Zone 10	January – December	—	—	January – December

Complete Growing Guide

Soil: High Organic Matter. Soil pH: Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 1 ft. 6 in. - 3 ft. 0 in.. Spread: 1 ft. 0 in. - 1 ft. 6 in.. Spacing: Less than 12 inches. Maintenance: Medium. Propagation: Seed.

Harvesting

The fruits are black when ripened. The tiny seeds are ovoid-shaped.

Color: Black. Type: Schizocarp. Length: < 1 inch. Width: < 1 inch.

Harvest time: Fall

Bloom time: Fall, Spring

Edibility: Celery Seed comes from Wild Celery. The bitter-tasting leaves are inedible.

Storage & Preservation

Fresh celery microgreens are highly perishable and best used within 3-5 days of harvest. Store them unwashed in a breathable container lined with paper towels in the refrigerator at 35-38°F. Avoid plastic bags, which trap moisture and accelerate decay.

For preservation, dehydration works exceptionally well with celery microgreens due to their intense flavor concentration. Use a dehydrator at 95°F for 8-12 hours until crispy, then store in airtight containers for up to 6 months. The dried microgreens make excellent seasoning blends and soup garnishes.

Freezing is less ideal due to their delicate structure, but you can freeze them in ice cubes with water or olive oil for later use in cooked dishes. They'll lose their crisp texture but retain most of their flavor compounds for up to 3 months.

History & Origin

Origin: Macaronesia to North Africa, Europe to West Himalaya

Advantages

+Attracts: Attracts Pollinators
+Wildlife value: Wild Celery attracts bees and butterflies.
+Edible: Celery Seed comes from Wild Celery. The bitter-tasting leaves are inedible.

Companion Plants

Plant Together

Chives

Repels aphids and other soft-bodied insects that commonly attack celery

Tomatoes

Celery improves tomato flavor and growth while tomatoes provide natural pest protection

Lettuce

Similar growing conditions and spacing requirements, good companion for microgreen trays

Spinach

Compatible moisture and temperature needs, can be grown in adjacent trays

Parsley

Both are umbellifers with similar growing requirements and pest resistance

Cabbage

Celery repels cabbage worms and flea beetles that attack brassicas

Marigolds

Natural pest deterrent that protects against aphids and whiteflies

Dill

Attracts beneficial insects and has similar growing conditions

Keep Apart

Carrots

Both are susceptible to carrot fly and sharing space increases pest pressure

Corn

Creates too much shade and competes heavily for nutrients

Fennel

Inhibits growth of most plants including celery through allelopathic compounds

Nutrition Facts

Calories

69kcal(3%)

Protein

1.5g(3%)

Fiber

5.3g(19%)

Carbs

17.6g(6%)

Fat

0.1g(0%)

Vitamin C

54.1mg(60%)

Vitamin A

5mcg(1%)

Iron

1.61mg(9%)

Calcium

8mg(1%)

Potassium

304mg(6%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #167782)

Pests & Disease Resistance

Resistance

Moderate resistance, can be sensitive to fungal issues in high humidity

Common Pests

Aphids, spider mites in dry conditions

Diseases

Damping off, leaf blight, septoria leaf spot in humid conditions

Frequently Asked Questions

How long do celery microgreens take to grow?▼

Celery microgreens typically take 14-21 days from sowing to harvest. Germination occurs within 3-5 days in temperatures of 65-75°F, and the microgreens are ready when they reach 1-2 inches tall with their first true serrated leaves visible.

Are celery microgreens good for beginners?▼

Celery microgreens are considered moderate difficulty and not ideal for complete beginners. They require precise moisture management, are sensitive to overwatering, and the tiny seeds can be challenging to sow evenly. Start with easier varieties like radish or sunflower microgreens first.

Can you grow celery microgreens without soil?▼

Yes, celery microgreens grow excellently in soilless mediums like coconut coir, vermiculite, or hydroponic mats. Many commercial growers prefer soilless methods as they reduce disease risk and make harvesting cleaner. Ensure whatever medium you use drains well while retaining moisture.

What do celery microgreens taste like?▼

Celery microgreens have an intensely concentrated celery flavor with fresh herbal notes and a slight bitter finish. They provide all the aromatic compounds of mature celery without the fibrous texture, making them perfect for garnishing and flavoring dishes where you want pure celery essence.

Why are my celery microgreens falling over and dying?▼

This is typically damping-off disease caused by overwatering and poor air circulation. Ensure you're bottom-watering rather than misting, maintain good airflow with a small fan, and avoid covering the trays once germination begins. Reduce watering frequency and check that your growing medium drains properly.

Can celery microgreens be regrown after cutting?▼

No, celery microgreens cannot regrow after cutting like some larger greens. They're harvested at the cotyledon to first true leaf stage, and cutting at this point removes the growing tip. For continuous harvests, practice succession planting by starting new trays every 7-10 days.