Sprouting Mix

Mixed spp.

Wikimedia Commons

Various shades of green leaves and pink and white stems with a crisp, mildly spicy flavor. Mix includes: broccoli, radish, alfalfa, and kale. One tablespoon of seed yields approx. 1 cup of sprouts. All of Johnny's high-germination sprouting seeds have tested negative for the presence of E. coli 0157 and Salmonella.

Harvest

4-6d

Days to harvest

📅

Sun

Indoor

☀️

Zones

1–11

USDA hardiness

🗺️

Height

1-2 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 Sprouting Mix in USDA Zone 7

All Zone 7 microgreen →

Zone Map

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Sprouting Mix · Zones 1–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

WaterTwice-daily rinsing with complete drainage between rinsing cycles

SeasonWarm season annual

FlavorCrisp, mildly spicy flavor combining broccoli notes, peppery radish bite, and mild alfalfa-kale sweetness

ColorGreen leaves with pink and white stems

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
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
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

Succession Planting

Sprouts finish in 4–6 days, so succession is easy to fold into a weekly routine. Start a new jar or tray every 2–3 days — two or three staggered batches means you're harvesting something every other day without any single jar sitting past its peak. No season to track; this rotation runs twelve months straight on a kitchen counter.

Complete Growing Guide

Growing Sprouting Mix (Mixed spp.) microgreen. Light: Indoor. Hardy in USDA zones 1 to 11. Days to maturity: 4-6. Difficulty: Easy.

Harvesting

Ready for harvest in 4-6 days from sowing or transplant. Harvest at peak ripeness for best flavor and storage life. Pick regularly to encourage continued production where applicable.

Storage & Preservation

Freshly harvested sprouting mix keeps best at 32–40°F in a breathable container lined with paper towels to absorb excess moisture; plastic bags trap humidity and promote rot. Expect 5–7 days of usable freshness when stored this way. Freezing works reasonably well for cooked applications—blanch briefly, cool in ice water, then pack into freezer bags—though raw texture suffers noticeably. Drying is less practical since microgreens are mostly water and lose their appeal when desiccated. For longer preservation, consider fermenting small batches in brine (3% salt solution), which develops tangy flavor and extends life to several weeks in the refrigerator. Because sprouting mix contains tender, delicate stems, handle gently during storage to minimize bruising. Store away from ethylene-producing fruits like apples to prevent premature wilting.

History & Origin

Sprouting Mix (Mixed spp.) is a cultivar grown commercially. See category-level varieties for general species history and origin information.

Advantages

+Organic-certified seed
+Easy to grow — beginner-friendly
+Quick harvest — ready in about 4-6 days
+Wide hardiness — grows in USDA zones 1-11

Companion Plants

Sprouting mixes are grown in jars or trays indoors, so field-style companion planting doesn't apply. The beneficials listed — basil, chives, dill, parsley, nasturtium — are plate companions, not bed companions; chives and dill in particular cut through the mild bitterness of brassica and radish-forward mixes. Black walnut's juglone and fennel's allelopathic compounds are genuine outdoor problems for other crops, but in a sprouting context they're irrelevant — your actual limiting factors are drainage, seed density, and keeping temps in the 65–72°F range.

Plant Together

Basil

Repels aphids and other pests that commonly attack young seedlings

Marigold

Deters whiteflies and aphids while attracting beneficial insects

Chives

Natural fungicide properties help prevent damping-off disease in seedlings

Nasturtium

Acts as trap crop for aphids and flea beetles, protecting delicate microgreens

Parsley

Attracts beneficial insects and doesn't compete for space with shallow-rooted microgreens

Mint

Repels ants and rodents that might disturb microgreen trays

Catnip

Strong pest deterrent, especially effective against aphids and flea beetles

Dill

Attracts beneficial predatory insects while repelling spider mites

Keep Apart

Black Walnut

Produces juglone toxin that inhibits germination and stunts growth of most plants

Fennel

Allelopathic compounds inhibit seed germination and early plant development

Eucalyptus

Essential oils and leaf compounds suppress seed germination and seedling growth

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

Common Pests

None—indoor sprouting environment excludes pests

Diseases

Mold (Aspergillus, Rhizopus, Mucor species) if moisture control or air circulation is inadequate

Troubleshooting Sprouting Mix

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

White or gray fuzzy growth on seeds or roots by day 2–3

Likely Causes

Mold (Rhizopus or Mucor species) — caused by standing water between rinse cycles
Overcrowded seeds trapping moisture and blocking airflow

What to Do

1.Tip the jar or tray at a 45-degree angle after each rinse so water drains completely — no pooling
2.Reduce seed density; a single layer of seeds (pre-soak) across the bottom of a quart jar is enough
3.Move the sprouts to a spot with better air circulation — a fan on low nearby helps more than most people expect

Sprouts smell sour or fermented by day 3–4, even without visible mold

Likely Causes

Aspergillus species or bacterial contamination from rinsing only once daily in warm conditions above 75°F
Residue from soaking water left on seeds — not rinsing thoroughly enough after the initial soak

What to Do

1.Rinse at least twice daily — morning and evening — with cool water, draining for a full 10–15 minutes each time
2.Bring ambient temperature down if possible; bacterial growth accelerates sharply above 75°F
3.Discard the batch, sanitize the jar with a dilute bleach solution (1 tablespoon per gallon of water), and start fresh with new seed

Frequently Asked Questions

How long does Sprouting Mix take to grow?▼

Sprouting Mix reaches harvest maturity in 4-6 days from soak to table. You'll see germination within 24-48 hours as the seed coat splits and roots emerge. True leaves develop by day 3-4, and the crisp texture fully develops by day 5-6. Harvest once stems reach 1-2 inches tall and first true leaves are vibrant green. Don't exceed day 6, as longer sprouting increases bitterness and mold risk.

Is Sprouting Mix good for beginners?▼

Yes—it's one of the easiest microgreens for beginners. You need only a mason jar, water, and twice-daily rinsing. No soil, no grow lights, no fertilizer, no pest management. The main skill is thorough draining after each rinse to prevent mold. If you're new to sprouting, start with one jar, master the rinsing rhythm, then expand. Success rate is very high with consistent care.

What does Sprouting Mix taste like?▼

Sprouting Mix delivers layered flavor: broccoli notes with a peppery, spicy radish bite balanced by mild, grassy alfalfa and kale sweetness. The texture is crisp and tender throughout, without the tough seed coat of older sprouts. The flavor is fresher and less sulfurous than eating broccoli microgreens alone, making it versatile for salads, sandwiches, and grain bowls where single-seed varieties might overwhelm.

Can you grow Sprouting Mix in containers or only jars?▼

Mason jars are standard, but any container with drainage holes and air circulation works: sprouting trays, fine-mesh strainers, or specialized sprouting vessels. The key is avoiding water pooling (which causes mold) and allowing air to reach all seeds. Jars are cheapest and easiest because cheesecloth lids are simple to manage. If using trays, mist instead of submerging, and tilt to drain excess moisture daily.

How do you prevent mold when sprouting?▼

Mold thrives in moisture without air circulation. Rinse twice daily (morning and evening) with cool water, then drain completely by tilting your jar at 45 degrees for 2-3 minutes. Don't let water pool in the jar overnight. Keep the sprouting area at 65-75°F—above 75°F encourages mold. If you notice a fermented smell or visible mold by day 2, discard the batch and sanitize your jar with hot water and vinegar before starting over.