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Buckwheat Microgreens

Fagopyrum esculentum

Buckwheat is widely grown as a grain crop, bee pasture, soil improving cover crop and as wildlife cover. It is a warm season grain which grows rapidly during the summer and several crops per year may be had with proper management. This rapid and dense growth chokes out weeds and is used in crop-free fields in rotation with vegetables. Buckwheat is often grown to attract beneficial insects and as pasture for honey bees. Sow in late May through July and till in about a month later, when flowering has begun. For grain harvest, sow 3 months before fall frost. Harvest after killing frost.

Harvest

8-12d

Days to harvest

📅

Sun

Full sun to partial shade

☀️

Zones

6–12

USDA hardiness

🗺️

Height

2 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 Buckwheat Microgreens in USDA Zone 7

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Zone Map

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Buckwheat Microgreens · Zones 6–12

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

SpacingDense sowing, 1.5-2 ounces per 10x20 tray

SoilWell-draining potting mix or coconut coir

pH6.0-7.0

WaterHigh — consistent moisture needed

SeasonWarm season annual

FlavorFresh, slightly tart and lemony with crisp texture

ColorBright green leaves with pink-red stems

SizeLarge leaves, 2-3 inches tall

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

Buckwheat microgreens are one of the easier crops to succession-sow because the turnaround is so short — 8 to 12 days from sow to cut. Start a fresh 10x20 tray every 5 to 7 days and you'll have a continuous harvest without any single tray going leggy or bitter. Since these grow indoors year-round, there's no frost date or heat threshold to plan around; the real limiting factor is rack space and how much you actually eat in a week.

One timing note: buckwheat turns slightly bitter and the stems get stringy if you let it run past day 12-13. Harvest when the cotyledons are still the dominant structure and the first true leaves are just barely emerging — that's the window, and it closes faster than you'd expect.

Complete Growing Guide

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). Soil pH: Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage, Moist, Occasionally Wet. Spacing: Less than 12 inches. Growth rate: Rapid. Propagation: Seed.

Harvesting

Winged achene with 3 sides. The wings of this achene form a heart-like shape with smooth edges. The achenes can be blown about by the wind because of their sizable wings.

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

Garden value: Edible

Harvest time: Fall

Edibility: Cooked seeds can be eaten as a cereal grain.

Storage & Preservation

Fresh buckwheat microgreens store exceptionally well compared to more delicate varieties. After harvesting, gently rinse in cool water and spin dry in a salad spinner or pat dry with paper towels. Store in airtight containers lined with paper towels in your refrigerator at 35-40°F.

Properly stored buckwheat microgreens maintain their crisp texture and tart flavor for 7-10 days – significantly longer than most microgreens. Change the paper towel liner if it becomes damp to prevent moisture buildup.

For preservation, dehydrating works beautifully with these substantial leaves. 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 for soups and salads. You can also freeze them in ice cube trays with a little water for smoothie additions, though they'll lose their crisp texture when thawed. Avoid traditional canning methods as the delicate cellular structure breaks down under high heat processing.

History & Origin

Origin: Eastern Tibet to China

Advantages

+Attracts: Bees, Pollinators, Songbirds
+Edible: Cooked seeds can be eaten as a cereal grain.
+Fast-growing

Considerations

-Toxic (Fruits): Low severity
-Causes contact dermatitis

Companion Plants

Buckwheat microgreens are grown indoors in trays, so traditional field companions don't apply the same way — but tray neighbors matter more than people think. Radish microgreens and arugula microgreens are practical tray-mates: both germinate in 2-3 days, prefer similar moisture levels, and don't cast the kind of lateral shade that smothers buckwheat's broad cotyledons. Pea shoots work well on the same rack because they tolerate slightly lower light without pulling humidity in a direction that stresses the buckwheat. Lettuce and spinach microgreens share the same 6.0-7.0 pH sweet spot and won't complicate your watering schedule.

Mint is worth keeping out of the rotation entirely — its volatile oils can bleed into the flavor profile of delicate greens sharing an enclosed grow space, and its aggressive root behavior makes it a poor container neighbor regardless. Fennel produces anethole, a compound documented to suppress germination in a range of species, and with a harvest window of only 8-12 days you can't afford a slow start.

Plant Together

Lettuce

Similar growing conditions and harvest timing, good space utilization

Radish Microgreens

Compatible growth rates and can be grown in succession plantings

Pea Shoots

Nitrogen fixation improves soil for buckwheat growth

Cilantro

Attracts beneficial insects and has similar water requirements

Arugula Microgreens

Compatible growing conditions and harvest schedules

Chives

Natural pest deterrent that protects delicate microgreens

Spinach Microgreens

Similar light and moisture requirements, efficient space usage

Marigolds

Natural pest control and attracts pollinators for nearby plants

Keep Apart

Mint

Aggressive spreading nature can overwhelm delicate microgreen trays

Fennel

Allelopathic compounds inhibit germination and growth of most plants

Black Walnut

Juglone toxicity severely stunts growth and causes wilting

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

Very disease resistant, hardy variety

Common Pests

Fungus gnats (indoor growing)

Diseases

Damping-off if soil is too wet

Troubleshooting Buckwheat Microgreens

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

Seedlings collapsing at the soil line, stems pinching off, mass die-off around day 3-5

Likely Causes

Damping-off (Pythium or Rhizoctonia spp.) — fungal pathogens that thrive when the growing medium stays waterlogged
Overwatering combined with poor air circulation in an enclosed indoor space

What to Do

1.Bottom-water only — set the tray in a shallow pan for 10-15 minutes instead of misting from above
2.Run a small fan on low nearby to keep air moving across the tray surface
3.If the whole tray is lost, sanitize with a 10% bleach solution before reusing the tray

Tiny flies hovering around trays, seedlings growing slowly or stalling out before day 8

Likely Causes

Fungus gnats (Bradysia spp.) — larvae feed on roots and organic matter in the growing medium
Consistently wet surface layer of soil or coco coir, which is where adults lay eggs

What to Do

1.Let the top 1/4 inch of medium dry out between waterings — fungus gnat eggs need surface moisture to hatch
2.Place yellow sticky traps flat on the tray surface to catch adults before they multiply
3.For persistent infestations, drench the medium once with a diluted Bacillus thuringiensis var. israelensis (Bti) solution

Frequently Asked Questions

How long do buckwheat microgreens take to grow?▼

Buckwheat microgreens typically take 8-12 days from seeding to harvest. You'll see initial germination within 24-48 hours, making them one of the fastest-sprouting microgreen varieties. The exact timing depends on temperature and growing conditions, with warmer conditions (70-75°F) speeding up the process.

Are buckwheat microgreens good for beginners?▼

Yes, buckwheat microgreens are excellent for beginners due to their forgiving nature and reliable germination rates. They're naturally disease-resistant, tolerate minor watering mistakes better than delicate varieties, and their large seeds are easy to handle. The substantial leaves also make harvesting straightforward compared to tiny, fragile microgreens.

Can you grow buckwheat microgreens without soil?▼

Absolutely! Buckwheat microgreens grow excellently on coconut coir, hemp mats, or even paper towels. Many commercial growers prefer soilless mediums because they're cleaner, reduce contamination risk, and make harvesting easier. Just ensure whatever medium you choose retains moisture while providing good drainage.

What do buckwheat microgreens taste like?▼

Buckwheat microgreens have a fresh, slightly tart flavor reminiscent of lemon or rhubarb with a crisp, substantial texture. They're much more robust than typical microgreens, offering a pleasant tang without bitterness. The flavor intensifies slightly as they mature, making timing important for your preferred taste profile.

Do buckwheat microgreens contain gluten?▼

No, buckwheat microgreens are completely gluten-free despite the confusing name. Buckwheat isn't related to wheat at all – it's actually a pseudocereal related to rhubarb. This makes buckwheat microgreens safe for people with celiac disease or gluten sensitivity.

How much do buckwheat microgreens yield per tray?▼

A standard 10x20 inch tray typically yields 12-16 ounces of fresh buckwheat microgreens, significantly more than most microgreen varieties due to their large, substantial leaves. Using 1.5-2 ounces of seeds per tray usually provides optimal density for maximum yields without overcrowding.