DIY Weed Calendar: Mapping Your Seasonal Weed Control

11 Nov '25

Lush green grass in Phoenix lawn.

No matter the season, weeds show up uninvited. They creep between pavers and mulch and compete with plants for sunlight and nutrients.

If you feel like you need help, a DIY weed calendar is a helpful tool. Map out what to do each season and plan ahead for a healthy Phoenix lawn. 

Why You Need a Weed Calendar

Timing is essential in weed control. Many homeowners only take action when weeds have invaded most of their yard. But the most effective strategy is prevention. 

A calendar helps you determine weed cycles and spreads the tasks you need the whole year. Think of it as a seasonal rhythm for your yard: pull, mulch, watch, and repeat. Let’s break down what that looks like each season.

Spring: Pull and Preempt

This is the most crucial time to get ahead of weeds. When the soil warms, dormant seeds wake up and begin to germinate.

Start by looking at your garden beds and lawn for early growth like dandelions, chickweed, and crabgrass. Pull these young weeds before they flower — their roots are weaker and easier to remove. 

After clearing, apply a pre-emergent herbicide to stop new seeds from sprouting.

Top up your mulch layer to 2 or 3 inches to block sunlight from reaching any hidden seeds. 

Remember to water carefully — overwatering can encourage more weed growth.

Summer: Maintain and Mulch

By summer, the goal is maintenance. With higher temperatures, some weeds can grow almost overnight, so consistency matters.

Keep your mulch fresh and thick enough to shade the soil, especially around flower beds and trees. Mulching not only controls weeds but also helps retain moisture — a big advantage during hot months.

If you notice isolated weeds pushing through, pull them promptly before they drop seeds. For stubborn patches along driveways or fences, a natural vinegar-based spray can help. Just be cautious around desirable plants, as vinegar affects all greenery it touches.

Fall: Clear and Condition

Fall is the season for cleanup and prevention. Removing weeds before they go to seed ensures fewer problems next spring.

Use this time to aerate your soil and overseed your lawn to strengthen grass coverage — a dense lawn leaves less room for weeds to invade. 

Applying a fall pre-emergent herbicide can also help stop winter weeds like henbit and chickweed from germinating.

Before temperatures drop, spread a fresh layer of mulch in your garden beds. It protects plant roots and prevents weed seeds from settling into bare soil.

Weeds growing in Phoenix lawn.

Winter: Rest and Watch

Winter brings slower growth, but that doesn’t mean your work stops entirely. Keep an eye out for cool-season weeds such as annual bluegrass that may sprout during mild spells.

Check your mulch coverage and replenish any areas that have thinned out. This not only helps prevent weeds but also protects soil from erosion. 

Winter is also a great time to take notes on what worked and what didn’t, so you can fine-tune your calendar for the next year.

When DIY Isn’t Enough

Even the most dedicated DIY gardener will encounter weeds that refuse to quit. Deep-rooted species, aggressive spreaders, and herbicide-resistant weeds often need professional attention. 

That’s where Custom Weeds & Pest Control comes in. Our experts use targeted treatments and proven strategies to stop weeds at the root without harming your lawn or garden. 

We design control plans that fit your property’s unique conditions, giving you lasting results and peace of mind.

Because at the end of the day, while a DIY weed calendar keeps your yard in check, professional weed control is what keeps it weed-free for good.

 

What our Clients say

I'm busy, detail oriented, cost conscious and highly selective as to whom works in and/or around my home. This is a service based company that actually provides superior service. Don't waste anymore time... call them. ~ a satisfied customer for three years.

Client Charles M., Mesa

I'm so very happy with Custom Weed & Pest Control. I had extremely tenacious weeds, and while they had to come out multiple times to get rid of them, it was covered under my warranty. Now they're gone, and I couldn't be happier.

Client Janice L., Chandler

Your service was phenomenal, and I would recommend you to all my friends.

Client Mike M., Glendale

They did a great job and all my weeds are dying as promised. My backyard no longer looks like a jungle. Thanks

Client Marty G., Cave Creek

Very happy with services. I would like to schedule for both houses this time around.

Client Mike M., Glendale

I was very happy with the service and I would like to setup another appointment.

Client James H., Phoenix

Great people, great results equals great company!

Client Daniel C., Arizona


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