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JHLA is a landscape architecture firm offering creative and green design solutions. Examples of our current projects and built work are shown here, as well as more information about the staff.

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Jennifer Horn is a Washington DC landscape architect and horticulturist specializing in the design and implementation of high end residential and commercial gardens throughout Virginia, Maryland, Washington DC, Delaware, and New York state.

Our specialties include: patios, hardscapes, walkways, masonry walls, terraces, pergolas, herb gardens, potagers, outdoor kitchens and bars, sports courts, fire pits, custom swimming pools and water features, landscape lighting, native plants, community parks, and school courtyard design.

We invite you to view our landscape architecture portfolio of work. We have designed landscapes for new homes and renovated spaces for clients in Bethesda MD, Chevy Chase MD, Potomac MD, Arlington VA, McLean VA, Washington DC, and beyond.