People with landscape certification in another state in New England may receive reciprocity through the following procedure:

  1. Fill out the Application for Landscape Certification Reciprocity and mail it to your current certification committee.
  2. Read and sign the Code of Ethics.
  3. Mail the Code of Ethics from and a check for $50.00 made payable to NHLA, to:
    NHLA Certification Committee
    c/o Pam Moreau
    13 Rancourt Street
    Nashua, NH 03064

Please note that NHLA requires yearly recertification (see below).

Certification Renewals

Certification is renewed once each year. The recertification deadline is January 15th. In order to renew, 5 recertification credits must be earned.  The manual and recertification form provide more information on ways to obtain recertification credits. A Certificate of Attendance or other evidence must be supplied for non-NHLA activities. To renew, complete the recertification form and mail it along with a check for $50.00 made out to NHLA.

Certification Resources

View Manual Review Course Information

The Manual Review Course is for NHCLP Exam preparation, covering material from the Certification Manual. The 2024 course discusses topics like Botany, Plant Identification, Turf, and Landscape Design.

Plant Identification Summer Course

The Plant Identification Summer Course teaches plant identification basics, including all listed plants. Designed for newcomers and those with limited plant knowledge, it covers methods, families, and common landscape materials.

Sample Exam Questions

Dive into our Sample Exam Questions page for a hands-on grasp of landscaping concepts. Test your knowledge on plant names, leaf issues, fertilizers, pruning, safety, and more and solidify your understanding of essential landscape topics.

Download Our Plant List

Discover our comprehensive Plant List for a wealth of botanical knowledge. With species details, scientific and common names, native indications, and invasive classifications, this resource is your gateway to understanding various plants.

Certification Via Reciprocity

Certification via reciprocity lets certified individuals in another New England State obtain equivalent certification in New Hampshire. Complete the Application for Landscape Certification Reciprocity, adhere to the Code of Ethics, and submit to NHLA.