indigo seedling care pledge graham keegan
indigo persecaria tinctoria graham keegan

Indigo pigment grows naturally in the leaves of a large number of plant species from around the world. This plant, Persecaria Tinctoria, also know as Polygonum Tinctorum, has been a staple source of blue in East Asia for millennia. It is known for being relatively easy to grow. It thrives in full sun, rich soil and moderate water.

Exercise your thumbs, green or otherwise, by adopting and caring for some of these plants yourself!

The pigment can be extracted from the mature leaves and used to dye all types of natural fibers. There are photos, videos and instructions for this process at

This round of seedlings will be available for pick up only. I will not be able to ship to distant places.

Remember, this is an experiment! Take notes, share your findings at!

Please grow along!


Indigo Seed Packet


This packet contains at least 100 seeds of natural indigo. Among its many names are Persecaria Tinctoria, Polygonum Tinctorum, Japanese Indigo, Dyers Knotweed, etc.

I've found that the most efficient way to grow these seeds is to bulk germinate by planting in troughs of soil in an open flat, then transplanting the small seedlings into their own cells as their first true leaves appear. Finally, when the seedlings are at least 4 inches tall and have a few sets of leaves, transplant into the ground in full sun. Be sure to transplant after all threat of frost has passed as this plant is NOT frost hearty and will be decimated by below freezing temperatures.

For information about the cultivation and use of this plant visit our sister-site

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Indigo From Seed to Dye by Dorothy Miller
29.00 35.00

A self-published gem! This 60 page paperback journal cum manual covers one woman's experience with natural indigo. This is the fifth edition, published in 1999 and contains lots of useful information on the cultivation and use of Japanese indigo aka dyers knotweed aka persicaria tinctoria aka polygonum tinctorum.

I was lucky to pick up a block of these books and to be able to offer them for sale. They are becoming more and more rare and costly! Grab one while they're still out there!

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