Tree Care · Property Services

Deep Root Fertilization

Trees in yards often grow in compacted, nutrient-poor soil, and they show it with thin leaves, slow growth and dieback. Deep root fertilization places nutrients where roots can use them. NorTech connects you with vetted tree care pros who set their own price and base treatments on what your trees actually need.

Pricing set by local pros

30-day warranty

Before & after photos

Background checked

Book Deep Root Fertilization

Tell us about the job

Up-front — no surprises

Your pro backs the work for at least 30 days

Background-checked pros

Before & after photos

Backed by The Blue Promise

Need more hands? Pick a company that sends crews and choose how many technicians. Want a second pro for a different job? Add one right after you book.

Book several services with one pro. Pros set their own bundle discounts.

Compare Bids

Bigger or unusual job? Local pros bid on it and you pick who does the work.

Why trees need feeding in landscapes

In forests, falling leaves recycle nutrients back into the soil. In a yard, leaves are raked away and soil is compacted by foot traffic and construction, so trees may lack nitrogen, iron or other nutrients. Signs of deficiency include pale or yellowing leaves, small foliage, slow growth and early fall color. A soil test and visual inspection guide the plan, since too much fertilizer can harm trees, and some symptoms are caused by drought, disease or poor planting rather than hunger.

How deep root injection works

A probe injects a slow-release fertilizer mix into the soil at root depth, usually in a pattern around the drip line where the feeder roots are active. This delivers nutrients without waste and without feeding the lawn. The treatment may include micronutrients, soil conditioners and mycorrhizae that help roots take up water. Timing is usually in spring or fall. Water afterward to help distribute the nutrients. Ask the pro to record the products and rates used, and note the date, so a future arborist can build on the program instead of repeating it.

Combine feeding with good care

Fertilizer does not fix root damage, poor planting or drought. Pair it with mulch, deep watering and proper pruning for best results. Avoid over-fertilizing lawns around trees, since the extra nitrogen can harm them. An arborist can monitor tree health over time and adjust the program, or advise when a tree has problems beyond nutrition. Keep a record of treatments and photos of the canopy. Walk the yard with the pro and point out any trees that look stressed, since a single treatment is not a cure for pests, disease or poor drainage.

When to book deep root fertilization

Leaves are pale, small or sparse.

Your trees need a nutrient boost to stay healthy.

The tree is stressed by construction or drought.

You want to boost young trees.

Your soil is compacted or poor.

You want a preventive care program.

30-Day Warranty

Backed by your provider’s warranty. If covered work fails, your provider makes it right — free.

Frequently asked

Deep Root Fertilization — common questions

Often once a year or every few years, depending on tree health and soil. A soil test helps set the schedule. Ask your provider to confirm the details in writing before work starts.

Yes. Too much fertilizer can burn roots, cause weak growth and pollute waterways. Follow the pro’s plan. If you are unsure, describe your situation when you book and ask for advice.

The best windows are usually early spring, before leaves flush, or fall, once the heat has passed, because roots are actively growing then. Avoid fertilizing during drought or heat, when trees are stressed and nutrients can burn roots.

It helps many trees, but the cause of decline matters. Fertilizer will not cure disease, root rot or poor drainage. A short written scope keeps expectations clear for both sides.

Most trees take under an hour, depending on size. The probe leaves small holes that close naturally. If you are unsure, describe your situation when you book and ask for advice.

The pro guarantees the application for 30 days. Tree response varies and is not guaranteed. Raise any questions at the estimate stage so there are no surprises later.

Didn’t find your answer? Nova, our AI assistant, is in the chat bubble in the bottom-right corner and can help anytime.

What homeowners say

Deep Root Fertilization reviews

Verified reviews from every city where NorTech connects customers with providers will appear here.

Be the first deep root fertilization review

Your pro backs the work with a workmanship warranty — if covered work is not right, your pro makes it right, free. Book with confidence and tell the Bay Area how your pro did.

Book Deep Root Fertilization

Check your coverage

Is Deep Root Fertilization available near you?

NorTech connects you with vetted local providers for deep root fertilization. Enter your ZIP to check coverage and see your price.

Are there pros in your area?

Enter your ZIP code and we’ll point you to your local hub.

or search your city

Atherton Portola Valley Woodside Los Altos Hills Hillsborough Belvedere Tiburon Ross San Francisco Palo Alto

Browse the full coverage area →

Explore more

Related home services

Homeowners who book deep root fertilization often need a hand elsewhere too. Browse related NorTech services — pricing set by local pros, vetted local providers, and a guarantee or warranty suited to each service.

Storm-Damage Tree Removal & Emergency Cleanup

Emergency removal of storm-damaged trees and limbs, cleanup of debris and securing of hazards by…

Learn more

Palm Tree Trimming & Skinning

Palm tree trimming and skinning by a skilled climber: removing dead fronds, seed pods and old bo…

Learn more

Tree Planting & Transplanting

Tree planting and transplanting by a licensed landscape contractor: root-ball digging, moving, r…

Learn more

Wood Chipping & Firewood Processing

Wood chipping and firewood processing by a tree service: chipping brush on site, splitting logs,…

Learn more

Crane-Assisted Tree Removal

Crane-assisted removal of large, hazardous or hard-to-reach trees by a qualified tree service, l…

Learn more

Root Barrier Installation & Root Pruning

Root barrier installation and root pruning by an arborist or landscape pro: protecting sidewalks…

Learn more

General Handyman

Your whole to-do list handled in one visit — repairs, mounting, and odd jobs done right.

Learn more

Drywall Repair, Installation & Patching

Nail holes to full water-damaged sections patched and texture-matched, or a whole new wall or ce…

Learn more

Carpentry & Woodwork

Custom shelving, cabinet repair, crown molding, and finish carpentry that fits like it was alway…

Learn more

Book in minutes

Ready to book deep root fertilization?

Choose a background-checked local provider, see your price the moment you enter your ZIP, and lock in a time that works — backed by your pro’s 30-day workmanship warranty.

Book Deep Root Fertilization Compare Bids

Prefer to compare bids yourself?Get quotes from independent local contractors — you pick who does the work.Compare →