The Seattle Times reported that Hartlage uses a custom Specialty Soils potting mix.
Custom Potting Mix Used by Richard Hartlage
Specialty Soils produces a custom potting mix used by Seattle landscape designer Richard Hartlage. In a feature about Hartlage’s garden, The Seattle Times reported that he uses a custom Specialty Soils potting mix, and Hartlage told readers they could ask us for the mix he orders.
If that’s the mix you’re looking for, you’re in the right place.

A custom mix identified by the customer who orders it.
Richard Hartlage uses a custom potting mix produced by Specialty Soils for container plantings. We reference his name here only to help readers identify the mix discussed in the Seattle Times feature.
We are not publishing or guessing at the formulation. Tell us you are looking for the custom mix Richard Hartlage orders, and our team will know which request you mean.
You can ask for the mix Richard Hartlage orders.— Richard Hartlage, quoted in The Seattle Times
Clear information, without invented specifications.
The published garden feature connects the custom mix with his container plantings.
Use the request form and ask for the custom mix Richard Hartlage orders.
About the mix mentioned in the article
What potting mix does Richard Hartlage use?
Richard Hartlage told The Seattle Times that he uses a custom potting mix produced by Specialty Soils for his container plantings.
Can I order the custom mix Richard Hartlage uses?
Contact Specialty Soils and ask for the custom potting mix Richard Hartlage orders. Use the request form on this page and we’ll know which mix you mean.
Is this a Richard Hartlage-branded product?
No. It is a custom Specialty Soils blend that Richard Hartlage is publicly reported to use. His name is used here only to help customers identify the mix discussed in The Seattle Times.
Tell us this is the custom mix you’re looking for.
The request form will be prefilled so our team can identify the correct custom-mix inquiry without turning it into a public SKU.
