1.75 mm GrowLay filament for hydroponics, Brown

Lay Filaments

Print 3D objects and let biological cultures grow! Add seeds or spores to them and they will grow. GrowLay can be used as a basis for a variety of organic substances. It has more tensile strength and rigidity than the white version.

Buy - Prices VAT included
Sample (4 meters) €4,50
10 meters €9,50
15 meters €15,80
Coil 250 g €30,95

GrowLay is available in two different variants:

GrowLay white: it is an experimental filament, 100% compostable.
GrowLay brown: this version has wood particles, not compostable. It is recommended where greater long term stability is required. GrowLay brown contains not only pores but also built-in "food" in the form of cell material which is needed for growth.

Experimental filament.

GrowLay Brown
GrowLay works like a breeding ground for:

  • grass, moss
  • fungus, mildew
  • lichen
  • mycelium
  • pharma-cultures, mother cells


Special filament with wood particles in brown color.


  • Porous and absorptive
  • With open capillaries
  • With organic nutrients (wood particles)
  • Higher tensile strength than white version
  • More rigid than white version
  • Increased temperature stability than white version
  • Compatible on most common desktop 3d-printers

Tech specifications

Nominal diameter 1.75 mm
Warp low
Flexibility low
Break resistance n.a.
Printing temperature 170-250 °C
Temperature resistance n.a.


The filament can be printed just as easily as Lay-wood.
GrowLay is microcapillary. Its cavities absorb and store water, dissolved liquid nutrients or fertilizer. Promoted because of the capillary action throughout the printed object.

GrowLay can be sterilized (for food use and research), it is suggested either a liquid or gas method, thermal sterilization is not possible.

GrowLay can be very brittle in the filament form. Handle with care.

Hydroponics, Biological cultures, 3D-gardening, Pharma cultures.

Kind of cultures:

  • Mold grows through the open-cell capillaries and forms a mycelium.
  • Seeds of grasses can get caught and grow in GrowLay.
  • Spores find room to germinate in small cavities.
  • Roots cling to the structures of the object filling.
  • Even lichens grow on GrowLay.


Due to all the different types of hot-end it's extremely difficult to give a temperature advice. Please consider our tips as a starting point to find the temperatures that work well in your setup. You may have to adjust the temperature settings slightly based on your type of printer.