About

Based in Cumbria, Curve 21 offers garden and landscape management expertise that will provide its clients with concise evaluation, design, and sustainable management planning.

With 28 years of experience developing private gardens and parklands in Cheshire, Oxfordshire and Yorkshire, Curve 21 is grounded in practical experience, that is backed by professional and academic achievements.

Curve 21 was created and founded in Cumbria by Jonathan Cansdale in 2025. Jonathan is a Chartered Horticulturist, holds the Technician grade membership with The Arboricultural Association, he is an RHS Master of Horticulture and is a member of the Professional Garden Consultants Association and the Cumbria Chamber of Commerce.

Why did I start Curve 21 Landscape Consultancy

To create and work within a garden is an amazing opportunity, and through each role as a Head Gardener I developed my knowledge, skills and application of contemporary garden and classic landscape design, planting plans, landscape recovery and management planning. Having experienced some beautiful parts of the UK, when the opportunity arose for us to settle in Cumbria and be part of a wider community we decided the time was right to set up Curve 21 and build a creative design and management practice with horticulture at its heart.

The research behind every part of my practice has continued to develop through study, conference attendance and international travel. As a Chartered Horticulturist I have followed my experience to study and practice social and therapeutic horticulture, connectivity of green infrastructure, management planning and to expand my knowledge in the protection of ancient and veteran trees.

About Jonathan Cansdale

Academic and Professional Progression