Vegetable SeedsHSC-MIC-084-1OZ
Brassica juncea
10 - 15Days to maturity

A seed worth growing

Mustard, Red Katana Organic Microgreen Seed

Item #HSC-MIC-084-1OZ

About this variety

Deep red leaves on light green stems.

Red Katana has dark red, slightly lobed true leaves with matching seed leaves on light green stems, making it one of the most richly colored organic brassicas for micros. The flavor is mild, much like Miz America.

For a first planting, try about 9.5 g of seed per 10" × 20" tray, which is roughly 3 trays per ounce. Plan on cutting once the first true leaves show, around 14–15 days after sowing. Open-pollinated, certified organic seed.

Specs

  • Average 361,700 seeds per lb.

In stock — 1 Ounce

Current price $11.30

Know before you sow

Quick Facts

Seed size & germination
Seed size (10 mm scale) and germination soil temperature chart for mustard greens

Growing times vary with weather, soil and local conditions.

Growing guide

From seed to harvest

Sow

Scatter seed densely and evenly over moist mix in shallow trays, press it in and cover lightly or use a humidity dome.

Water and warmth

Water from below or mist. Keep the mix near 75°F until sprouting, then about 60°F; never let it dry out.

Light and airflow

Give strong light once sprouted and keep air moving to prevent damping-off.

Harvest

Cut at 1/2–2" tall, when the seed leaves are open or the first true leaves appear. Chill and use within 5–10 days; wash before serving.

Growing Information

Growing space

Grow under cover, in a greenhouse or on an indoor rack. Each crop has its own germination needs, but the method used for brassica microgreens works for most: fill shallow trays or open flats with potting mix or a soilless medium, scatter the seed densely and evenly (about 1/8–1/4" apart) and press it firmly onto the surface. Cover very lightly with mix or vermiculite, or just use a humidity dome. Seed can be germinated on heat mats, in germination chambers, or on greenhouse benches or floors.

Watering

Water from below or with a fine mist so the mix does not splash onto the seedlings. Keep the medium evenly damp and never let it dry out.

Temperature

Hold the medium at about 75°F (24°C) until the seeds sprout, then drop to around 60°F (16°C). Air temperatures of 65–75°F (18–24°C) suit most crops; above 75°F, disease pressure rises and germination can suffer.

Light

Add grow lights wherever daylight is weak, for example in a greenhouse during the short days of winter.

Feeding

Potting mix with some built-in fertility usually needs only plain water. Use a dilute fertilizer for media with no nutrients of their own, or for slow crops that can use up the available fertility before harvest. Mix fertilizer into the medium before sowing, or feed liquid fertilizer from below so no residue lands on the leaves.

Days to maturity

Depends on the crop, the growing conditions and the size you want. Fast crops are usually ready in 10–15 days and slower ones in 16–25 days.

Disease

Because they are sown so thickly, microgreens are prone to damping-off and other problems linked to still air and waterlogged media. Keep air moving with horizontal fans, use clean media and water, and do not over-sow.

Harvest

Cut when the seed leaves are fully open, or as the first true leaves begin to show, depending on what your buyers want; most microgreens are cut at 1/2–2" tall. Use scissors or a sharp knife and handle the greens as little as possible.

Storage

Properly chilled, microgreens keep about 5–10 days. Wash before serving.

Seeds per lb.

About 361,700 on average.

Satisfaction Guarantee

We want every packet you buy from Hensley’s Seed Co. to grow well for you.

If anything you order from us doesn’t meet your expectations, just let us know and we’ll replace it or refund what you paid.

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