Meet The Team

Ann-Marie Powell

Ann-Marie Powell founded her practice in 1999 after travelling the world admiring landscapes, then gaining a distinction in NCH Garden Design & Hard Landscape Studies. Since then she has become one of the UK’s most innovative garden designers, creating ground-breaking and uplifting gardens backed by experience. 

Alongside heading her successful studio, she has authored three books on garden design and writes regularly for National magazines and newspapers including The Telegraph, Gardens Illustrated and The English Garden.

 Ann-Marie has also presented over 20 different garden design, garden history and pure garden programmes, including 2016’s coverage of RHS Chelsea for the BBC and prime time BBC2 series ‘The Great Garden Challenge’ which aired in 2015.

 An experienced Chelsea exhibitor, described by the Editor of The Garden Design Journal, as “a TV and flower show veteran in experience, not years”, her work was awarded a Silver Flora medal in 2011 and Gold in 2010. She is also an RHS Hampton Court Gold Medallist (2015) and was selected by the Royal Horticultural Society to design their own garden at RHS Chelsea in 2016.

 Ann-Marie’s high public profile sees her regularly hosting events, and giving talks and lectures for a range of clients. She revels in social media with regular blog posts via her website and lively twitter, Facebook and Instagram feeds.

 Ann-Marie is also extremely proud, honoured and delighted to have been asked in 2016 to become a patron of Greenfingers, a charity dedicated to supporting the children who use hospices around the UK, along with their families, by creating beautiful, well-designed outdoor spaces for children to enjoy with family, friends and siblings.

 When she’s not working, you’ll find her in her own garden…. or at a festival, theatre, gallery or concert. After all, life is for living.


Constantly inspired by nature, Katarina trained as a garden designer at the prestigious KLC School of Design based at Hampton Court Palace. A top student, she graduated with Distinction, and two Industry Awards - The Gardens Illustrated Planting Award and The College Award for Creativity. She has also trained at Longwood Gardens in Philadelphia, USA, and created gardens in Arizona and her home country of Sweden.

Katarina is a true techie, and is a master of Vectorworks, the Design software most often used by the Landscape Design Industry. She utilises its full capabilities to develop even the studio’s most complex garden design projects.

Before her passion for garden design grew, she graduated Umea University (Sweden) with an Economics degree. Katarina then spent twenty years travelling the world as a leading professional Skydiver. With a passion for technical projects, Da Vinci’s parachute had been waiting for her keen eye for over 400 years.  Katarina built and tested his original design - and it worked! The adventure was filmed as an IMAX documentary, and is still enjoyed worldwide. 

She visits her rambling garden by Lake Vattern back in Sweden as often as she can. Outside studio time, she takes any chance to have a really spicy Mexican meal, accompanied, of course, by tequila.


Mary trained at the prestigious KLC School of Design at Hampton Court Palace, graduating in 2016 with a distinction and winning two awards, for Residential Garden Design and the London Stone Award for Construction. Before that, Mary studied at Ryton Organic Gardens (the home of Garden Organic, one of the UK's leading organic growing charities) and under their expert tutelage, obtained the RHS Certificate in Practical Horticulture (Level 2).

Growing up on a farm in Hampshire, Mary has always loved getting her hands dirty in the garden. Life then went in a different direction; a degree in Biochemistry from Oxford University, followed by a law conversion. But after 10 years practicing as a solicitor specialising in intellectual property, she realised it was her clients who were having all the creative fun, and she knew it was time for a change. In 2015 she joined Le Cure de France, cycling one and a half times the height of Everest in four days, to raise money for the Royal Marsden’s Cancer Research charity. Two weeks later Mary had handed in her notice and enrolled with KLC, the rest is history! (She has not ridden her bike since.)


We are lucky enough to have had Lorna managing our office for the last ten years. She left London for leafy Hampshire, leaving her career as Office Manager at London based Japanese Advertising Agency, Hakuhodo. With a head for numbers, and a way with clients, we couldn’t run our business without her. She is in charge of accounts, administration and the day to day smooth running of the practice. Although Lorna isn’t a trained garden designer, she has her own large garden at the foot of the South Downs, and delights in entertaining in it and, of course making the most of tips from the studio staff.