About us

Harrell Ltd. was founded by the landscape gardener Alex Oliver.

After completing formal training at The Royal Botanical Gardens in Kew and the National Trust, Alex gained further qualifications with the Royal Horticultural Society. In 2010, he set up a specialist garden maintenance company in rural Hertfordshire. Acting as Head Gardener to a 15-acre estate with his personally-selected team behind him, he continued to grow the business to encompass domestic and commercial grounds maintenance, design and landscaping.

Today, Harrell Ltd directly employs experienced landscapers, gardeners, civil engineers and tree specialists to provide their clients with specialist teams to take care of every requirement. They also sponsor apprentices in a variety of disciplines within their industry.

Alex takes pride in Harrell’s work, and personally oversees each contract. He and his teams are dedicated to providing a professional service of quality, from the initial design stage, through to planting, construction and maintenance.

Director of Operations and assistant


Harrell Ltd are committed to creating and maintaining beautiful landscapes to the highest of environmental standards.

Our core values are formed from the trust placed in us by our clients; we strive to produce work that is pleasing to the eye, fulfils a practical purpose, and that is built to last. Our ultimate aim is for our clients to experience joy every time they look at the landscape we created for them for years to come.

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Historical garden maintenance