SKU: 42447591000
indigo plant seeds

indigo plant seeds JAPANESE INDIGO - SEEDS

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Description

indigo plant seeds JAPANESE INDIGO - SEEDSThese Japanese Indigo (Persicaria tinctoria) seeds were grown and harvested in Pinole, California in 2024 Each package contains 2 grams of unhulled seed or approximately 75 150 seeds and were grown and harvested in Zone 9b. Our germination tests yield an 80 82% germination rate. Sow these seeds fresh, as indigo seed viability decreases after the first year. Growing Japanese Indigo Persicaria Tinctoria Life Cycle Annual Zone Half hardy annual Sunlight

These Japanese Indigo (Persicaria tinctoria) seeds were grown and harvested in Pinole, California in 2024

Each package contains 2 grams of unhulled seed or approximately 75-150 seeds and were grown and harvested in Zone 9b.  

Our germination tests yield an 80-82% germination rate. 

Sow these seeds fresh, as indigo seed viability decreases after the first year.

 

 

Growing Japanese Indigo Persicaria Tinctoria

 

Life Cycle

 Annual

 Zone

 Half-hardy annual

 Sunlight

 Full Sun

 Height

 2' - 3'

 Spacing

 12" apart

 Soil

 Rich, fertile, well-drained; 
 pH neutral

 

 

When planning your space, on average each plant will yield enough pigment to dye one ounce of fiber.  I recommend planting 5-10 plants for a small garden.

 

Sowing

Seed indigo indoors in trays or cells. Maintain a damp not sopping moisture level

Potting On

Potting on gives indigo time to establish good root formation. (Three weeks after potting or before planting in the ground, pinch out preliminary center leaves to encourage plants to bush.)

First harvest should be 6-8 weeks after planting in the ground.  Plant outside after threat of frost, in a sunny location.

Indigo prefers warm sunny environments and lots of regular water, especially as it matures.

Soil Preparation

Indigo loves nitrogen rich soil (ph 7). Apply compost prior to planting to encourage good microbes.

Planting and Feeding

Indigo thrives in full to partial sun. Shelter from wind. Plant in 12 inch intervals between each plant. Water consistently, daily if necessary.

Feed every 6-12 weeks, before and after each harvest.

 

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SKU: 42447591000

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