Soilless Mixes

Soilless products listed below are stocked in the PSL storage room and are ready for pick-up during normal working hours (Monday-Friday 8am-4pm).  You must accurately fill out the paper soil request form in the storeroom. If you don’t see something you need, ask PCF staff. See also our listing of custom soil mixes.


Soilless Products & Mixes Cost
Coarse Vermiculite
Used for seed germination, rooting cuttings, seed cover, or as a soil mix component.

4 cu ft bag

Medium Vermiculite 
Used as a seed germination medium, seed cover, or soil mix component.
Note: Bags are labeled “Medium”.

4 cu ft bag

Berger BM2 Germination Mix
Plug-Grade Canadian sphagnum peat moss, vermiculite, and dolomitic limestone. Best used for propagation and seed-starting needs.

2.8 cu ft bag

Berger BM7 45%*
Composted pine bark, coarse peat moss, parboiled rice hulls, dolomitic and calcitic limeston
Formulated to provide extra drainage for perennials, shrubs, and trees.  Substitute for Metro Mix 510.

2.8 cu ft bag

Berger BM6 
Peat, perlite
Comment: General purpose soilless mix, also used as a rooting medium. Substitute for LC1.

2.8 cu ft bag

Fine Silica Sand, Quartz

50 lb. bag

Coarse Silica Sand, Quartz (Best Sand)


0.5 cu. ft. (50 lb. bag)

Perlite, Coarse+ 
Comment: Used in media for growing and for plant propagation from seeds and cuttings. It contains no nutrients for plants.

4 cu ft bag

Torpedo Sand+
Comment: Construction grade sand; combination of fine to coarse sand particles.
1 cu ft
Sphagnum Peat Moss+ 
Comment: 4 cu ft bale of peat moss that will expand to 8 cu ft upon fluffing.

1 bale

Turface MVP
Comment: Calcined clay soil conditioner with coarse construct which is good for promoting drainage and offering an excellent CEC.
1.4 cu ft bag

* Preformulated mixes are adjusted for pH and include a wetting agent.
+ Available upon request. Not stocked in PSL store room.

Please note: If you use soil or soilless mixes outside the PCF (in your lab, field sites, etc.) you will receive a separate bill each quarter for the products you use. (Updated Nov. 2021)