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Top-Rated Landscapers in Washington - Updated Nov 2026

Avatar for Adam Exterior Design
Adam Exterior Design
New to Angi
Designer - LandscapeLandscape - Soil, Sand, Mulch and Rock DeliveryLandscape Curbing - Install+1 more

Serving Washington, IA and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

Adam Exterior Design is here to make your home and yard look it's best with curb appeal. From landscaping design to decorating your garden to bringing the spark back out of your home. We have you covered. We work efficiently with your plans in mind to ensure your happiness with the result every time. We also love putting our input in to open up options. We look forward to hearing from you. Give us a call today!

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Landscaping FAQs, answered by experts

Yes, it is possible to add too little mulch. Anything less than 1 inch will likely result in too little coverage around your plants, allowing weeds to grow through and minimizing the positive effects that a deeper bed of mulch would have, like maintaining proper soil moisture and insulating the ground.

Late August, September, and mid-October are the ideal months for planting a young tree. However, the best time to plant a tree ultimately depends on when the weather transitions to fall-like conditions and eventually winter frost. As long as the hottest days of summer have passed and the ground hasn’t frozen yet, you can still successfully plant trees.

DIY landscaping is possible, but professional services offer expertise in selecting appropriate plants and designing functional spaces that complement the natural environment and adhere to local regulations.

It depends. Smaller, younger trees take longer to mature, but they're more resilient, their roots don't get as damaged during transplanting, and they recover faster. Plus, they're much more affordable to plant, and it's possible to DIY the planting. 

On the other hand, mature trees produce fruit faster and provide more shade and privacy immediately. Ideally, a small or medium tree is the better choice if you can wait a few years for it to mature. But if you need immediate maturity, a larger tree is the only option.

Moss attaches to the ground but doesn’t have roots, so it can take four to six weeks for establishment to begin. It takes between 12 and 18 months for full coverage, and maximum thickness takes about two years. Keep your moss moist and debris-free to ensure it establishes itself well.

The Washington, IA homeowners’ guide to landscaping services

From average costs to expert advice, get all the answers you need to get your job done.