Spring Kickstart Kit

Name: Spring Kickstart Kit
Brand: Sunday
SKU: SBA2031
Price: 64.80 USD
Availability: InStock
Rating: 4 (12 reviews)

$64.80 $72

(2) 42.3 oz liquid lawn fertilizers, (1) 5 oz weed control concentrate

12 reviews

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Spring Kickstart Kit includes Iron Boost and Grass Machine fertilizers and Dandelion Doom weed killer

Herbicide concentrate pouch + wand sprayer

Your lawn's annual whole spring game plan, in one box.

Fertilizer for growth and deep green, weed control that works fast, and the tools to make it easy. Everything your lawn needs annually to bounce back from winter.

Free shipping! Ships in 1-2 business days

Wondering what your lawn really needs?

Let's create a custom plan for you.

We're committed to making sure Sunday works for you and your home. Need a replacement? Or help troubleshooting an issue? Our experts are here for you. Learn more

Expert-approved essentials

Sunday Soil Test Kit & Analysis
$24.00
Fescue Rescue Grass Seed (2-pack)
$49.60

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The post-winter comeback your lawn needs

Grass Machine delivers nitrogen, iron, and seaweed to get things growing again. Iron Boost brings our highest iron concentration for color so deep your neighbors will notice (and pretend not to). Dandelion Doom handles broadleaf weeds without bothering a single blade of grass.

One box. One season. Your lawn handled.

The good stuff inside

Growth + resilience Grass Machine (15-0-3) fuels thick, healthy turf
Deep greening Iron Boost (20-0-1) for lawns that need extra color
Lawn-safe weed control
Precision tools Wand sprayer and pouch for easy, targeted spot treatment
Easy application Attach, spray and you’re done

How to use

Apply early morning or evening, between 50–85°F, to a hydrated lawn.

Mix Dandelion Doom in the herbicide pouch, fill to the 1-gallon line, shake gently.
Attach wand sprayer, target weeds directly. Let dry. Repeat in 3–4 weeks if needed.
Attach hose-end sprayer to Iron Boost fertilizer pouch, spray your lawn evenly.
Reapply fertilizer every 4–6 weeks, alternating Grass Machine and Iron Boost.

Automatically renewals annually.

Want to test your soil? Sign up for a Custom Lawn Plan instead.

FAQ

What's the best lawn fertilizer for spring?

Liquid fertilizer with nitrogen and iron absorbs fast and gets grass growing after winter. Grass Machine (15-0-3) combines nitrogen, iron, and seaweed for growth and resilience. For deeper greening, alternate with Iron Boost (20-0-1) every 4–6 weeks.

How do I get rid of dandelions without killing my grass?

Use an iron-based herbicide like Dandelion Doom or Weed & Green. The iron (FeHEDTA) in both formulas targets broadleaf weeds while leaving grass alone. Spray directly on leaves until covered and repeat in 3–4 weeks.

Is this safe for pets and kids?

Yep. Once everything's dry (usually a few hours) you're good to go. No synthetic herbicides, no waiting days to use your yard.

Can I apply weed killer and fertilizer the same day?

You can. Weed killer first, let it dry (2–3 hours), then fertilize. Each product needs time to absorb and dry before the next goes down.

Documents

Sunday Lawn Nutrient Pouch Instructions

Sunday Dandelion Doom Concentrate Instructions

Dandelion Doom Concentrate Label

Dandelion Doom Concentrate Safety Sheet

Spring Kickstart Kit Instructions

This kit provides iron-powered weed control alongside nitrogen- and seaweed-boosted fertilizer for lawns up to 5,000 sq. ft. Learn how to apply your kit in the correct order to get a greener lawn this spring.

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