Plant and Mineral Color Explorations on Paper


In this class we will focus on hands on experimentation with plant inks and mineral pigments on paper. Carolyn Sweeney of Strata Ink will guide you through the process of making botanical inks with plants gathered directly from the fields of Long Ridge Farm. We will also work with raw minerals foraged near Carolyn’s home in Oregon. Experiments will include using the minerals in their raw states and more refined “artist grade” versions. Carolyn will dig into the unique chemistry of natural color with clay pigment floccing, pH changes, metal salt modifiers, and Maya blue. We will use a variety of natural binders like gum arabic, soy wax, and eggs tempera to facilitate layering pigments on the paper. Students will leave with a swatch library of techniques and a collection of botanical inks. Most importantly students will have the knowledge to make and use artist materials from the abundance of natural color around them.

Date: August 8-10, 2024 3 days

Time: 9:00am – 4:00pm

Place: Long Ridge Farm, 116 Paine Road, Westmoreland, NH

Carolyn Sweeney is an artist who teaches classes on foraging for mineral pigments, making watercolors from scratch, botanical inks, and natural pigment crayons. She runs a business in Portland, Oregon called Strata Ink where she sells handmade natural pigment inks and crayons. She has a BA in Fine Art from Whitman College but believes her most valued knowledge has come from time spent out on the land and tending to her multitude of natural color experiments in the studio.

Instagram @strataink

Pinterest @Strata_ink

Don’t like using a credit card? You can pay by check. Mail to Long Ridge Farm, 116 Paine Rd, Westmoreland, NH 03467 and include your contact info with payment.


The workshop setting at Long Ridge Farm takes place on a New England farm in the Southwest corner of New Hampshire, within 2 hours of Boston, MA; 1.5 hours of Hartford, CT; and 20 minutes from I-91, Keene, NH; Brattleboro, VT; and Walpole, NH. The workspace is set in a great hall within a chestnut post and beam barn with an open environment yet protected from the elements. Foraging is at our fingertips! A portable toilet and washing area are within a few steps of the workspace. The space is spectacular and welcoming.  Although we do not have onsite lodging there are plenty of options within 15-20 minutes of the farm.

Workshop Cancellation Policy

Late cancellations are really difficult on planning, preparation and travel costs for instructors.

All cancellations 60 days or more, prior to the start of a workshop, can receive a full refund (course fee) less a $25 cancellation fee, per workshop.

Cancellations within 60 days from the start of a workshop are non-refundable.

If Long Ridge Natural Dyes cancels a class for any reason, registered students are refunded fully (course fee) less $25 cancellation fee. Once a class begins, there are no refunds or credits for early departure, late arrival, or missed class for any reason.

No pets are allowed and only the enrolled student is allowed to attend.

Thank you for understanding our policy.

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