About Gardens of the Wine Country

In 1974, Alan Kostelnik founded Pacific Environments, a commercial landscape company. Over the next 25 years, Alan managed and developed Pacific Environments into one of the largest, most successful and diverse landscape companies in the San Francisco North Bay.

Alan Kostelnik, Owner

Alan Kostelnik, Owner

In 1999, Alan sold Pacific Environments to a large national landscape service provider, TRUGREEN LandCare (a subsidiary of the ServiceMaster Corporation on the NYSE). 

Since selling my previous company, I have become more sensitive to what attracted me to this business in the first place. First and foremost is the love of being outdoors in nature, helping things grow while realizing an artistic vision.

I have also become sensitive to many people’s frustration when dealing with many of the landscape contractors out there. Too often I hear things like, “They never communicate with me…”, “They come and go so quickly I can’t get them to do things that need doing…”, “The job just seems to drag on forever…”, “They don’t see half of what really needs doing.”

In 2001, I started Gardens of the Wine Country to fill a niche in the marketplace where people are sensitive to their outdoor environment, appreciate personal service and the attention to detail. I love living in the wine country and feel blessed that we are all in a special place with special people who consider their surroundings and space an important part of themselves.

Gardens of the Wine Country- Diamond Certified Video Profile

In this video, founder Alan Kostelnik discusses his philosophies and very personal approach to serving his clients in the residential landscape industry. After over 40 years of commercial and residential expertise in all aspects of the the business, Alan Kostelnik is proud to be a Diamond Certified Expert Contributor.

Awards & Associations

The founder of Gardens of the Wine Country has more than 40 years of experience in the landscape industry. He is the recipient of over 35 local, state and national awards, including awards from the following organizations:

  • American Landscape Contractors Association
  • California Landscape Contractors Association
  • American Nursery Association
  • Sonoma County Board of Supervisors
  • North Coast Builders Exchange
  • City of Rohnert Park
  • City of Sebastopol
  • City of St. Helena
  • City of Santa Rosa
  • Sonoma Business Magazine

Diamond Certified

As of November 2003, Gardens of the Wine Country earned the prestigious Diamond Certified™ award. The Diamond Certified award is presented only to landscape contractors and other local service companies that rate ‘highest in quality’ in a detailed customer satisfaction study of their customers served during the previous four-year period. Each qualifying company must also pass a license, insurance, complaint status, legal and credit rating (for contractors). To maintain Diamond Certification, on-going American Ratings Corporation customer surveys must be passed on a quarterly basis.

As a Diamond Certified company, Gardens of the Wine Country is proud to be recognized for exceptional customer satisfaction and professionalism. View our Diamond Certified Capabilities Profile at www.diamondcertified.org


  • California State Contractors License #315413
  • State Pesticide License Q.A.L 37705
  • Bonded and Insured

Professional Associations and Leadership Positions

  • North Coast Builders Exchange (ncbe.santarosa.com)
    President – 1 year
    Executive Committee – 3 years
    Board Member – 7 years
  • California Landscape Contractors Association
  • American Landscape Contractors Association