Heirloom

Carrot

Daucus carota var. sativus

Wikimedia Commons

Carrot microgreens are delicate, tender shoots harvested at 16-25 days with mild, naturally sweet carrot flavor minus earthiness. These heirloom varieties feature crisp texture and fresh taste in a compact form ideal for garnishes and salads. Fast-growing and easy to cultivate, carrot microgreens offer concentrated nutrition and distinctive flavor in just 2-3 weeks, making them perfect for home growers seeking quick harvests.

Harvest

16-25d

Days to harvest

📅

Sun

Full sun to partial shade

☀️

Zones

4–11

USDA hardiness

🗺️

Height

2-3 inches

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Start Indoors

Harvest

Start Indoors

Harvest

Showing dates for Carrot in USDA Zone 7

All Zone 7 microgreen →

Zone Map

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Carrot · Zones 4–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

WaterConsistent moisture, not waterlogged

SeasonWarm season annual

FlavorMild, delicately sweet carrot flavor without earthiness; crisp and fresh with tender texture.

ColorGreen with subtle orange undertones in stems

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
Zone 1	January – December	—	—	January – December
Zone 2	January – December	—	—	January – December
Zone 11	January – December	—	—	January – December
Zone 12	January – December	—	—	January – December
Zone 13	January – December	—	—	January – December

Succession Planting

Carrot microgreens are one of the easier crops to run on a rolling schedule because the whole cycle is 16–25 days and you can sow indoors any month of the year. Start a new tray every 7–10 days if you want a continuous supply — that spacing gives you overlapping harvests without a gap. One tray at a time works fine for a household; bump to two or three staggered trays if you're supplying a CSA share or selling at market.

There's no bolting threshold to worry about the way there is with outdoor carrots. Keep your growing space between 60–75°F and germination will stay consistent year-round. If your space runs warmer than 80°F in summer, germination can stall or go patchy — either move the tray somewhere cooler for the first 7–10 days, or time your sows to avoid the hottest stretch indoors.

Complete Growing Guide

Mild carrot flavor. Sprinkle over a dish to create an interesting, delicate effect. According to Johnny's Selected Seeds, Carrot is 16 - 25 days to maturity, annual, open pollinated. Notable features: Hydroponic Performer.

Light: Full sun (6 or more hours of direct sunlight a day), Partial Shade (Direct sunlight only part of the day, 2-6 hours). Soil: Clay, High Organic Matter, Loam (Silt), Sand, Shallow Rocky. Soil pH: Acid (<6.0), Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage, Moist, Occasionally Dry. Growth rate: Rapid. Maintenance: High. Propagation: Seed.

Harvesting

Carrot reaches harvest at 16 - 25 days from sowing per Johnny's Selected Seeds. As an annual, harvest continues until frost ends the season.

Small, dry, and ribbed with bristly hairs. The compound umbel of fruits folds inward to form a roundish shape that can be blown by the wind and roll across the ground dropping seeds.

Color: Brown/Copper. Type: Achene. Length: < 1 inch. Width: < 1 inch.

Edibility: Leaves, roots, flowers, and seeds are edible. The young fleshy roots can be cooked or eaten raw, the flower clusters can be french-fried to produce a carrot-flavored dish, the aromatic seed is used as a flavoring in stews, etc. The dried roasted roots are ground into a powder and are used for making coffee.

Storage & Preservation

Harvest carrot microgreens at 16 days and store immediately in a breathable container lined with paper towel to wick away excess moisture. Keep them in the refrigerator at 35–40°F with 85–95% humidity; they'll stay crisp for 5–7 days. For longer preservation, freezing works well: blanch briefly (2–3 minutes) to preserve color and nutrients, then pack in airtight containers or freezer bags. Dried carrot microgreens retain their sweet, earthy flavor and can be ground into powder for soups and smoothies; dehydrate at 110–125°F for 6–8 hours. Fermentation is another option—pack them loosely with salt brine (2% salt by weight) in a jar for 3–5 days at room temperature to develop tangy complexity. Carrot microgreens are prone to bolting if exposed to warmth, so prioritize cold storage immediately after harvest to extend their window before decline becomes noticeable.

History & Origin

Carrot is open-pollinated, meaning seed saved from healthy plants will produce true-to-type offspring. Listed in the Johnny's Selected Seeds catalog.

Origin: Europe, Eastern Asia and northern Africa

Advantages

+Mild flavor complements dishes without overpowering delicate cuisine
+Long growing window of 16-25 days allows flexible scheduling
+Easy difficulty level makes carrot microgreens beginner-friendly
+Visually striking delicate effect when sprinkled as garnish
+Natural sweetness develops as carrot microgreens mature

Considerations

-Slow germination requires careful moisture monitoring to prevent rot
-Seeds have low germination rates compared to other microgreens
-Thin, fragile stems prone to tangling and difficult harvesting
-Requires consistent 16-25 day cycle with minimal room for error

Companion Plants

The companion list for carrot microgreens is really a carryover from full-season carrot growing — so take it with some salt. You're not planting these in a field bed. That said, if you're running multiple trays, there are practical reasons to think about what's on the same shelf. Chives and onions are listed as beneficial because their sulfur compounds confuse carrot fly (Psila rosae) in outdoor beds; indoors, that pest isn't a concern, but chive microgreens share nearly identical moisture and light requirements, so they're sensible tray neighbors. Radish microgreens are worth pairing for a different reason entirely: they're ready in 4–6 days versus 7–14 for carrot, which lets you pull staggered harvests off the same shelf without reshuffling your whole operation.

Dill, anise, and coriander are flagged harmful because of allelopathy — these plants release volatile compounds that suppress carrot germination and early root development in shared soil. Cross-contamination between separate indoor trays is unlikely to matter much, but if you're growing coriander microgreens at the same time, keeping them on a different shelf costs you nothing and builds a habit that genuinely matters once you move full carrots outside. Parsley shares the Apiaceae family with carrot and, in an outdoor setting, draws parasitic wasps and hoverflies that knock back aphid pressure — not relevant to a tray on your counter, but worth filing away if you ever transition this crop to a garden bed.

Plant Together

Chives

Repels carrot fly and aphids while improving soil health

Lettuce

Provides ground cover and shares similar growing conditions without competition

Radish

Breaks up soil for better carrot root development and deters carrot fly

Onions

Strong scent masks carrot odor from carrot fly and other pests

Parsley

Attracts beneficial insects and shares similar nutrient requirements

Leeks

Repels carrot fly through scent masking and vertical growth saves space

Marigold

Deters nematodes and other soil pests while attracting pollinators

Sage

Repels carrot fly and cabbage moths with aromatic compounds

Keep Apart

Dill

Can stunt carrot growth and attracts carrot fly when mature

Anise

Inhibits carrot germination and early growth through allelopathic effects

Coriander

May compete for nutrients and can inhibit carrot seed germination

Nutrition Facts

Calories

41kcal(2%)

Protein

0.93g(2%)

Fiber

2.8g(10%)

Carbs

9.58g(3%)

Fat

0.24g(0%)

Vitamin C

5.9mg(7%)

Vitamin A

835mcg(93%)

Vitamin K

13.2mcg(11%)

Iron

0.3mg(2%)

Calcium

33mg(3%)

Potassium

320mg(7%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #170393)

Troubleshooting Carrot

What you'll see, why it happens, and what to do about it.

Seeds germinate unevenly or barely at all by day 14 — sparse, patchy tray

Likely Causes

Carrot seeds dried out during germination; they need consistent moisture for the full 7–14 days
Seed buried too deep — carrot microgreen seed should sit at or just under the soil surface, not 1/4 inch down
Old seed stock with low viability (carrot seed degrades faster than most, especially after 2 years)

What to Do

1.Cover the tray with a humidity dome or damp burlap until sprouts emerge, and check moisture twice a day
2.Resow with fresh seed pressed lightly onto the surface, then mist — don't drench
3.Do a quick jar germination test on suspect seed before committing a full tray to it

Seedlings are pale yellow or white rather than green, even after uncovering the tray

Likely Causes

Tray kept in the dark too long after germination — carrot microgreens need light within a day or two of sprouting
Insufficient light intensity; a north-facing windowsill in winter won't cut it

What to Do

1.Move the tray to a spot with 4–6 hours of direct sun or place it 2–3 inches under a grow light for 12–14 hours a day
2.Give yellowed seedlings 48 hours under good light before writing them off — they green up fast once light hits them

Fuzzy white coating on the base of stems or growing medium surface around day 7–10

Likely Causes

Root hairs on carrot seedlings — often mistaken for mold, but root hairs are white, uniform, and attached directly to the stem base
True mold (commonly Pythium or Botrytis) — appears gray or blue-green, smells musty, and spreads across the soil surface

What to Do

1.Mist the tray lightly and check again in 12 hours; root hairs will look the same, true mold will spread
2.If it's actual mold, improve airflow immediately — a small fan on low for a few hours a day makes a real difference
3.Reduce watering frequency and make sure the tray isn't sitting in pooled water

Microgreens are leggy and flopping over before reaching harvest height of 2–3 inches

Likely Causes

Too little light — carrot microgreens stretch toward any available source and lose structural integrity
Sown too densely, causing seedlings to compete and lean against each other for support

What to Do

1.Reposition the tray within 2 inches of a grow light, or move it to the sunniest window available
2.Next sow, spread seed more evenly — aim for a single layer with seeds touching but not piling up
3.Harvest at 16–18 days rather than waiting for 25; flopped greens don't recover their posture

Frequently Asked Questions

How long does it take to grow carrot microgreens?▼

Carrot microgreens are ready to harvest in 16-25 days from sowing, making them one of the faster crops. Germination alone takes 7-14 days depending on seed soaking—soak seeds for 2-4 hours before planting to speed this up to just 7-10 days. Once shoots emerge, they grow to harvestable height (2-3 inches) in another 7-10 days under proper light and moisture conditions.

Can you grow carrot microgreens indoors without sunlight?▼

Yes. Carrot microgreens thrive under grow lights alone—12-16 hours of fluorescent or LED light daily is sufficient. A sunny window with 4-6+ hours of direct south-facing light also works perfectly. Indoor growing is actually ideal for microgreens since you can harvest year-round regardless of season or climate. Just ensure lights are positioned 2-3 inches above the seedlings to prevent stretching.

What do carrot microgreens taste like?▼

Carrot microgreens have a mild, delicately sweet carrot flavor without the earthiness of mature roots. They're much more subtle than radish or mustard microgreens, making them versatile for both savory dishes and garnishes. The flavor is crisp and fresh, with a tender mouthfeel. They work beautifully as a finishing garnish on soups, salads, and plated dishes where you want visual elegance without bold flavor.

Is growing carrot microgreens good for beginners?▼

Carrot microgreens are one of the best beginner-friendly microgreens, though they do require careful attention to watering. The main challenge is avoiding overwatering and mold—water from below using a tray-soaking method, and ensure air circulation around your seedlings. If you can manage consistent moisture (not soggy, not dry), carrot microgreens are nearly guaranteed to succeed. They're cheaper, faster, and easier than most vegetable gardening.

Can you regrow carrot microgreens after harvesting?▼

No. Unlike larger cut-and-come-again greens, microgreens are harvested just once when the first true leaves appear. The entire crop is cut at soil level and will not regrow. To have continuous carrot microgreens, start new trays every 7-10 days in a staggered sequence. This approach gives you fresh harvests weekly without managing regrowth.

How much light do carrot microgreens need?▼

Carrot microgreens need 4-6+ hours of direct sunlight daily or 12-16 hours under grow lights. During the first 3-4 days after sowing, keep seeds in darkness to promote germination. Once shoots emerge, move them immediately to bright light to prevent pale, weak growth. A south-facing windowsill or LED grow lights positioned 2-3 inches above seedlings work equally well indoors.