Logwood EXTRACT from the Mexican region of Yucatan.
This non-oxidized logwood extract yields deep purples at 1-5% WOF.
1-2% WOF will create a medium shade of purple, blue or gray. 5% will be the most saturated of deep purple, night blue or black.
Logwood in all its forms (extract, chips or powder)is one of the most favorite natural dyes we know. Fast to make, easy to use, create purples, blues, greys, and blacks with different mordants.  Fantastic for use in colored blankets with botanical prints for purple, black or blue backgrounds.
 
Our logwood natural dye extract comes from the heartwood of the logwood tree, Haematoxylon Campechianum. It is also called Campeche by some dyers. The tree grows in South America but has become hard to come by lately due to the political instability in the region.
 
 A range of possible colors can be produced by the "Bloodwood tree" (also known as spiny tree and logwood) including blue, purple, dusty purple and reddish purple. Haematoxylum campechianum is also known as "Uitzquauitl" in Nahuatl Aztec and "Huitzcuahuitl" in Nahuatl Aztec.
 
For logwood purples; mordant fabrics with alum, and make sure the bath is slightly alkaline. For deep night logwood blues; skip the alum, and add 1% Copper Sulphate to the bath. Adding acid will shift the bath to coppery browns. With iron a lovely gray-black can be achieved.
 
In this article you can find specific recipes for different shades of logwood made with natural logwood powder.
Prune de monsieur logwood recipe here.
Logwood black here.