Dulse | Species guide | Horizon Seaweed

Harvested to: Aug
Harvested from: - Nov

A deep ruby red seaweed, growing from a tiny holdfast attached to rocks and other seaweeds.

It is a small seaweed that only grows in abundance when the conditions are just right. Picked on strong spring tides during autumn.

Typical uses: Intense flavour and vibrant red colour help it pack a punch. Makes an exquisite seasoning for lamb or fish. Great for buttery sauces, adding a smoky, umami flavour.

Food & drink Human health Biocompounds Research

Dulse thumbnail — Months of wild harvest dulse production
Samples available to you from our archive

We have developed a detailed knowledge of harvest seasons. Specifically, it may be possible to pick small quantities of a variety early in a season, but we delay first harvest until the rates reach commercial scale. Indicative seasons for our key species are given below. Please contact us if you would like to learn more about production months.

Species	January	February	March	April	May	June	July	August	September	October	November	December
Dulse Palmaria palmata	Is currently not available during January	Is currently not available during February	Is currently not available during March	Is currently not available during April	Is currently not available during May	Is currently not available during June	Is currently not available during July	Is available during August	Is available during September	Is available during October	Is available during November	Is currently not available during December

We enjoy working with Peter and Hugh and are grateful to have a professional and reliable supply partner of fresh organic seaweed. Working with harvested raw biomass is vital for our work at SeaDyes. We have managed to overcome logistical challenges due to our location in Argyll, and the last batch of seaweed arrived in great condition, fresh and smelling like the sea. It was the most beautiful dulse I’ve ever seen. We look forward to working with Horizon Seaweed for many years to come and supporting the growth of Scotland's blue economy.

Jessica Giannotti, CEO, SeaDyes Ltd.

We have had a bespoke seaweed blend specifically tailored for a daily dose of iodine created for us by Horizon Seaweed. Their expertise and knowledge has been invaluable to us in our product development and we look forward to working with Horizon going forward. The team is also extremely helpful and supportive at all times and highly professional.

Dr Pieris Nicola, Managing Director, Rosita

PlantSea’s vision to turn the tide on plastic pollution has been supported by Horizon Seaweed. As we develop and scale our biotechnology, the team have helped us understand wholesale seaweed supply and formats. They have always made every effort to work with us to explore our options and ensure they can meet our requirements. Not to mention, every order is always on time and in spec!

Alex Newnes, Co-founder, PlantSea

We have used Horizon Seaweed for several years now and are always struck by the quality and range they supply. The seaweeds always looks bright and rich in colour and have that wonderful fresh sea smell.

Abby Render, Sourcing Manager, Indigo Herbs

It is important to Exale Brewing that we source interesting ingredients of the highest quality. Horizon Seaweed provided different varieties to trial so we could ensure the flavour in our award-winning Deep Dark Imperial Stout was just right.

Mark Hislop, Owner, Exale Brewing

We’ve found the knowledge and support of Horizon Seaweed to be first class. The products have been used successfully in our gins, with the first Coastal Edition winning gin of the year with the Craft Gin Club members in 2020.

Martin Murray, Founder, Dunnet Bay Distillery

I was keen on the idea of using seaweed for a plant-based foodservice product. There are lots of different types and the knowledgeable team at Horizon Seaweed were extremely helpful in guiding me towards the best solutions for my particular application.

Richard Fox, Plant-based chef, richardfox.tv

We have a long baking heritage and creating products of the highest quality is the key requirement for keeping our loyal customers happy. To that end, we have been delighted with everything we have sourced from Horizon Seaweed and use their ingredients in several of our products. The Horizon Seaweed team have been an absolute pleasure to deal with and we look forward to working with them in the years to come. We strongly recommend them and their fantastic range of products.

Donald Scott, Purchasing Manager, Stag Bakeries