Contractor Header
Original Contractors License KIT
C-27 Landscaping
Contractors License and Performance Bonds

C27 – Landscaping Contractor

A landscape contractor constructs, maintains, repairs, installs, or subcontracts the development of landscape systems and facilities for public and private gardens and other areas which are designed to aesthetically, architecturally, horticulturally, or functionally improve the grounds within or surrounding a structure or a tract or plot of land. In connection therewith, a landscape contractor prepares and grades plots and areas of land for the installation of any architectural, horticultural and decorative treatment or arrangement.

Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)

Content of the Examination

The Landscaping (C-27) examination is divided into seven major sections. These sections are:

1. Landscape Design (15%)

  • Hardscape design
  • Drainage design
  • Irrigation system
  • Plant selection
  • Mulch selection

2. Job Estimation (23%)

  • Scope of work
  • Time estimation and labor cost
  • Equipment and tool selection
  • Drainage and irrigation materials
  • Softscape materials
  • Hardscape materials

3. Site Preparation (13%)

  • Drainage control
  • Erosion control
  • Underground piping installation
  • Soil amendment

4. Hardscape Installation (9%)

  • Concrete and masonry
  • Retaining walls
  • Landscaping edgings
  • Fences, gates, screens, and steps
  • Water features
  • Electrical connections
  • Lighting

5. Irrigation System Installation (18%)

  • Controllers
  • Main lines
  • Lateral lines
  • Drip system components

6. Plant Material Installation and Landscaping Maintenance (13%)

  • Planting methods
  • Water management
  • Plant maintenance
  • Turfgrass management

7. Job Site Safety (9%)

  • Hazard Identification
  • Personal protection
  • Environmental protection

*Percentages are approximate*

Test Site Policy
This is a closed-book examination. No reference materials may be used during the examination. All materials brought to the examination site must be left in an unmonitored area at your own risk.

Test Strategy
This is a multiple choice examination with four choices per question. Some questions require mathematical computation. Examination questions are written to provide only one BEST answer and are NOT written as trick questions.

All correct answers have equal value and there are no score reductions for wrong answers. Therefore, all examination questions should be answered.

Ample time is provided to answer all examination questions, so be sure to read each question and its four choices completely and carefully before selecting the BEST possible answer to the question.

Sample Questions

The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.

1. When is the best time to remove thatch build up in a cool season lawn?

  1. Mid to late winter
  2. Mid to late summer
  3. Mid to late spring
  4. Mid to late fall

2. What effect does lime have when added to soil?

  1. It increases the pH.
  2. It decreases the pH.
  3. It increases the potassium.
  4. It decreases the potassium.

3. If the gpm changes from 8 gpm to 12 gpm, how would velocity be affected?

  1. Velocity will increase.
  2. Velocity will remain the same.
  3. Velocity will decrease by two.
  4. Velocity will decrease by four.

*All questions are written and reviewed by licensed contractors who are actively working in the field*

Sunset Western Garden Book. Sunset Publishing Corporation.
Menlo Park, CA 94025.

University of California, Division of Agriculture and Natural Resources.
6701 San Pablo Ave.,
Oakland, CA 94608.
(800) 994-8849
FAX: (800) 487-8488.

Landscaping Construction.
David Sauter, Delmar/Thompson Learning.
(800) 347-7707
FAX: (800) 487-8488.

California Landscape Standards.
California Landscape Contractors Association.
(916) 830-2780
FAX: (916) 830-2788.

Trouble Shooting Irrigation Control Systems.
Derryberry Irrigation Consulting.
5818 East Oak Street,
Scottsdale, AZ 85257
(480) 423-0542
FAX: (480) 423-1322.

American National Standard for Tree Care Operations - Pruning, Trimming, Repairing, Maintaining, and Removing Tree, and Cutting Brush - Safety Requirements.
ANSI/Global Engineering Documents,
15 Inverness Way East,
Englewood, CO 80112.
(800) 854-7179
FAX: (303) 397-2740.

*Publisher information is current as of 2/05*

Industry Schools Footer Navigation

Call us TODAY... 800-456-2150

Copyright © 2011