ACER Integration
Thursday, October 1 - Monday, November 1, 2027
6:00 PM local time
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About
Psychedelic Integration for Lasting Connection
ACER Integration is a guided 13-month online program supporting psychedelic integration through practices that deepen connection to self, others, and the natural world.
Standard ACER fee- £1,440 or you can choose to split the yearly fee into three monthly payments of £520
Exclusive offer from The Psychedelic Society
Join this training with 20% off using code PSYSOC20
Why ACER?
Many of the challenges we face personally and collectively are rooted in disconnection, from ourselves, from one another, and from the living world.
Research by ACER founder Dr Rosalind Watts found that psychedelics can increase connectedness to self, others, and the wider world. ACER was created to help people sustain and deepen that connectedness over time through practices grounded in psychological theory and nature’s wisdom.
While the model grew out of psychedelic research, its lessons are widely relevant for anyone seeking greater resilience, meaning, and belonging.
What ACER Does
ACER takes place within a closed global online community over a year-long cycle, with an initial onboarding month. Each month explores a new theme inspired by a tree archetype, for example, Oak (accepting all parts of ourselves) or Elder (connecting with ancestors).
Through reflection, breathwork, and community-based practice, participants develop sustainable ways to integrate insight and support ongoing change.
The A.C.E.R. model helps you:
Accept emotions
Connect to meaning
Embody insights
Restore balance with nature’s rhythms
ACER is non-prescriptive. You engage with the practices in ways that feel aligned, and you remain in control of your own journey.
Who ACER Is For
Most people join ACER for one or both of these reasons:
to integrate their own psychedelic experiences more deeply
to strengthen their work as therapists, facilitators, or spaceholders
Many also join because they are looking for a community of purpose and a more sustainable way to navigate change without isolation or burnout.
Practitioners come to ACER to be supported through times of transformation, expand their skills, and connect with a wider network of care. Integrators join to develop more resourced ways of being, reduce isolation, and continue integrating psychedelic experiences within a nature-based community.
How It Works
ACER is built around a year-long cycle based on Dr Rosalind Watts’ ACE therapeutic framework, Accept, Connect, Embody , with a fourth element added, Restore.
The cycle unfolds in real time within a closed community, offering a more collective approach to healing than is often found in Western models of care.
Benefits for You
Community members report positive changes such as:
reduced stress and anxiety through self-regulation and present-moment awareness
movement away from old patterns through insight and reflection
feeling encouraged, supported, and held by community
creating a more sustainable rhythm for life and change
increased creativity and inspiration
greater connectedness locally and globally
a clearer sense of purpose and direction
Core Practices
Tree Journeys
Each month is guided by a different tree. Using meditations, written materials, and reflective practices, Tree Journeys help participants connect with nature, self, and others. Dr Watts introduces each new tree with a short video, and each journey is accompanied by bespoke music.
Sharing Circles
Small-group sharing circles help participants process each month’s teachings by speaking from lived experience and witnessing others. Circles are held by trained ACER facilitators who have completed the cycle themselves and are skilled in creating warm, respectful spaces.
After completing the year-long cycle, participants are eligible to apply to become sharing circle facilitators within the ACER community.
Q&A Sessions
Each month, Dr Watts speaks live with an inspiring guest on topics relevant to the community. Sessions can be attended live or watched later on catch-up.
Breathwork
Breathwork is offered as both an integration tool after psychedelics and an embodiment practice. ACER includes monthly drop-in sessions as well as deeper Breathwork Journeys aligned with the Eightfold wheel of the Celtic calendar. These longer sessions are designed to induce altered states of consciousness and are led privately by trained professionals within the ACER community.
Music Meditations
ACER’s music meditations, featuring artists such as Jon Hopkins , range from 5 to 25 minutes and are designed to fit into everyday life. They support the ongoing process of Accepting, Connecting, Embodying, and Restoring.
Orison Tree Circles
Dr Watts created the Orison Tree journey as a standalone practice for processing grief and clarifying what we need help with. Participants can access the recording and also join facilitated group sessions within ACER to listen and process together.

“The disconnectedness of modern culture has left many of us feeling empty, lost and alone. Many of us didn’t grow up with a sense of feeling at home in ourselves, connected to who we are and why we are here, the land that we live on, close-knit community, and the ancestors who came before. This is why I started ACER..”
— Dr Rosalind Watts
Community
Being part of the community is central to the ACER experience. It offers the chance to be known deeply, supported by others, and connected through a shared purpose. ACER draws on modern online connection to revive an older sense of Anam Cara , soul friendship.
Alongside the deeper work, the community includes spaces for lightness and play, such as:
Tree Dance with Leonie
Wood Whittling gatherings
monthly drop-in chat spaces
Your Orchard
Each participant is placed in an Orchard , a small group of 6 to 12 people moving through the 12-month cycle together. Orchards provide a more intimate space for reflection and processing, and many continue meeting after the formal cycle ends. Groups are arranged by location and timezone where possible.
Connect Locally and Globally
Although ACER is online, strong relationships form quickly across countries and timezones. Participants who live near one another often meet in person for nature walks and social connection.
Beyond Your First Cycle
When ACER’s first cohort completed the cycle, many chose to stay for another year. This led to the creation of the Elders’ Orchard , where returning participants continue deepening their relationship with the Twelve Tree cycle.
Some Elders repeat the cycle for further growth, while others contribute to community life by hosting sessions such as Book Club , including discussions of Terry Real’s US.

Our Offering
The ACER 12 Tree Cycle includes a 13-month membership in the ACER community and access to:
Sharing Circles
Guided Meditations
Breathwork Sessions
Q&As with industry pioneers
Woodland Walks with thought leaders in conversation with Dr Rosalind Watts
the community forum
resources and session replays
How to Join
ACER opens twice per year , once in April and once in October.
To join, complete the application form. Once accepted, your first month includes onboarding to the platform, meeting your Orchard, and joining introductory live events before your 12 Tree cycle begins the following month.
Exclusive offer from The Psychedelic Society
Join this training with 20% off using code PSYSOC20
Meet the Team

Dr Ros Watts
FOUNDER
Dr Ros Watts created ACER after working at Imperial College London as the clinical lead of the psilocybin for depression trial. She has been named as one of the 50 Most Influential People in Psychedelics. Ros’s favourite Tree Teacher is the Rowan (or Mountain Ash). Rowan teaches that Grief and Love are two sides of the same coin and that our deepest suffering can be the place where our most important offering can spring from, if we are connected to enough support and care to nurture this alchemy.

Lee Mendeloff
OPERATIONS MANAGER
Lee is a therapist, yoga teacher, breathwork guide. Her favourite tree is the Redwood. As ACER’s resident embodiment enthusiast and somatic practitioner, Lee loves how the Redwood teaches self-soothing. The Redwood reminds us that, no matter how strong we appear externally, our inner child—the sapling within—still needs care and nurturing. Tending to this part of ourselves builds emotional resilience and fosters nourishing relationships with both ourselves and others.

Philip Carr-Gomm
FACILITATOR AND CONTRIBUTOR
Philip is a psychotherapist, and previous sharing circle facilitator on the first ever ACER cycle. Philip studied Druidry as a spiritual path with Ross Nichols, the founder of The Order of Bards Ovates and Druids, and in 1988 was asked to lead The Order of Bards Ovates and Druids himself. “There is something about a birch tree lit up by the sun against a deep azure sky that just makes my heart soar. In the Druid tradition it represents new beginnings - the paper-like quality of the bark evoking the excitement of the blank page inviting new creation!”

Ona Praderas
SHARING CIRCLE FACILITATOR
Ona Praderas is an embodiment wellness coach, with over 8 years of experience blending modalities such as movement, breath, creativity and Gestalt therapy to foster deep personal growth. Her favourite tree is the Oak, it reminds her that this shall pass and balance will return no matter what. It helps her make peace with those parts of her that need pampering and love.

Caroline
SHARING CIRCLE FACILITATOR
Caroline is a clinical psychologist and psychedelic-assisted psychotherapist who lives in the beautiful Blue Mountains of Australia, raising children and mugwort and trying to mindfully embody a bridge between the sacred and clinical worlds. Her favourite tree is the Apple, reminding us of the way life feeds back into itself, where past experience and the skins we shed become compost and nourishment for the next chapter, and the next, both internally and in relationship.

Nii
SHARING CIRCLE FACILITATOR
Nii is a mental health, technology and psychedelics advocate and has spent the last 22 years working in mental health. He believes that strengthening our connection to nature and our authentic selves offer us the best chance of living fulfilled and aligned lives. The redwood reminds him to find stillness in challenging times, to look after himself by engaging in activities that regulate the nervous system and to find strength through an inner pillar of core values.

Ruth
SHARING CIRCLE FACILITATOR
Ruth works in the creative sector but has always had an interest in psychology and mental health. She believes in an holistic and embodied approach to healing - one that includes every aspect of our humanity whether it be storytelling, art, movement, music, talking, thinking and connection to nature all have their part to play and are amplified when worked out within a supportive community.

Leonie
SHARING CIRCLE FACILITATOR
Leonie is a mental health and psychedelics advocate, passionate about connecting authentically, building and supporting communities. Following her participation in two clinical trials using Psilocybin and DMT for depression, Leonie took part in the ACER pilot which offered her a deeply felt experience of connection, belonging and purpose. She has since co-founded the Psychedelic Participants Advocacy Network (PsyPAN) and is also the Community Manager for Alalaho Psychedelic Retreats.

Ian
SHARING CIRCLE FACILITATOR
Ian has been working in journalism, charity communications and advocacy work for many years, all with the unifying aim of connecting people. Ian’s ongoing personal journey has included being a participant in two psychedelic clinical trials to treat his depression, which inspired him to co-found the Psychedelic Participant Advocacy Network (PsyPAN). His favourite tree is the Yew as it reminds us all to slow down, and to take the time to breathe and live more in harmony with our natural rhythms.

Claudia
SHARING CIRCLE FACILITATOR
Claudia stands at the crossroads of shamanic energy healing, Jungian dreamwork, psychic development, and psychedelic integration, and is the author of a newsletter called Many-Worlds Vision. Her favorite tree is the Rowan, which has taught her that the wind's assaults can be a gift, helping us root deeper into this Earth, and deeper into the depths of our own hearts.
Exclusive offer from The Psychedelic Society
Join this training with 20% off using code PSYSOC20
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