Spring Kickstart Kit
$50 $72
(2) 42.3 oz liquid lawn fertilizers, (1) 5 oz weed control concentrate
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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.
Wondering what your lawn really needs?
Let's create a custom plan for you.
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Expert-approved essentials
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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.

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.
Read articleCustomer reviews
4.0
Based on 12 reviews
Popular topics
Dandelion Doom didnt work for me
I purchased the Spring Starter kit, which included Dandelion Doom. I used it as my first product (and only at this point) and followed directions to a t. It literally did absolutely nothing to my lawn weeds. I also sprayed it along my fence line and those weeds are still happy as can be, too. I don’t want to waste my money to purchase more since it didn’t work the first time. I’m really disappointed and am not sure if I’ll even use the rest of their products I bought. The good thing is I didn’t buy their re-curing plan of products.
Sunday
Thanks for sharing your feedback regarding Dandelion Doom! This is a selective herbicide, which means that it is designed to target broadleaf weeds like dandelions, and not certain other weeds. We encourage you to reach our to our expert Yard Advisor team to get more information on the weeds that Dandelion Doom is effective on. You can reach them at [email protected].
Was this review helpful?Kick start definitely kick started our lawn
Our back yard was pretty much bare and muddy with dormant Bermuda grass. With 2 large active dogs overseeing was out of the question. In desperation I applied Kick Start and within a week the Bermuda grass is coming back. I see new grass coming up all over. Very happy home owner here...
Was this review helpful?I just love Mosquito Deleto
Easy to apply and it smells pleasant. I had used several other natural products before but the smell was pretty much unbearable, plus the sprayers usually drenched me. Mosquito Deleto is easy to apply without any back spray and it smells nice. Like it so much I just ordered 2 more bottles.
Was this review helpful?Awful
Review by Anonymous User This whole thing is a scam. We have more weeds than we have ever had in our yard. We have way more success using what our local hardware store has
Sunday
Sunday nutrients will improve soil health, encouraging thicker and fuller grass growth. However, our fertilizer pouches/bags do not contain any herbicides, so they alone will not directly treat existing patches of weeds. For assistance with our weed control products and to make the most of your Custom Lawn Plan, you can always reach out to your Yard Advisor! You can reach them at [email protected] or by calling 415-903-6932.
Was this review helpful?Just right for me.
This kit is easy to use and comes with everything you need to get started. The results are good but not dramatic. It’s not advertised as a dramatic improvement, but rather a process that depends on the time and resources you dedicate to it. i live in a neighborhood in the north, and the house is on the north face of a hill so we have shade loving plants, mosses and ferns. I have some neighbors who have spent thousands ripping out their lawns and bringing in soil and new grass seed. Others have their lawn spray painted green by the chem lawn companies. I prefer a softer more gradual approach.
Was this review helpful?Great start to the growing season
The spring starter kit worked great. My lawn came in vibrant and healthy to start the year. The kit was delivered quickly.
Was this review helpful?Easy
Love this spring kickstart package. Everything I needed without having to go to the store and find all the right products. My lawn looked great this year.Thanks Sunday Team
Was this review helpful?Just ok.
First time using Sunday. Anticipated a thicker green yard. The weed control was not affective against clover in the grass. I did not see the results I expected. This may not be related, but I have had extensive mole damage this year for the first time. I did like the Nix Ticks product and Deleto Mosquito.
Was this review helpful?Got things going!
We felt safe using these products around our kids and dogs. It really greened up the grass but the weed killer probably needs a few coats to really make it count. So far we will be buying again!
Was this review helpful?Great product with great results
We have 4 Basset Hounds, so we wanted something pet friendly. The kickstarter kit worked great and really brought our lawn back to being green and full. We had weeds and dead patches in our lawn before using the kickstart kit and it really got it going in the right direction. Our lawn is thick and green and we are loving the products from Sunday!
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Questions & answers
11 questions
Question: I purchased the starter kit do I apply the iron boost first and then wait 7 days and apply the powerhouse?
Sunday
Start with Iron Boost, then wait 4–6 weeks and apply Grass Powerhouse. Continue alternating the two every 4–6 weeks throughout the growing season. That spacing gives your lawn time to fully absorb each nutrient application and keeps growth steady without overdoing it
Question: Hello...I have applied the Kickstart to my St.Augustine, how much time must I wait to apply the Powerhouse?
Jeff McConathy
We recommend waiting at least 7 days between liquid nutrient applications!
Question: Can this be used in a side by sprayer to be applied to the yard?
Jeff McConathy
We cannot make specific recommendations for any application method besides the sprayer included with your Sunday order. However, we can share with you that our pouches are dispersed at a rate of about 75:1, which equal about 1.5 ounces (3 tablespoons) of product per 1 gallon of water. If using a pull behind trailer/tank combo, you'll need about 25 gallons of water to properly disperse one full nutrient pouch.
Question: How do I use the sprayer? I hooked it up to the water hose and nothing happens. It says bend the tab but there is no tab. Is it broken what do I need to do?
Louisa D.
Apologies for the confusion! The sprayers come from the manufacturer with a small tab that we remove for you, to make the application process easier. While we're not able to remove the wording on the sprayer head at this time, rest assured the tab removal is a conscious decision on our part!
Question: If this is my first purchase, does it come with everything I need or do I need to purchase any additional accessories?
Louisa D.
This kit contains the following equipment to get started: Replacement Lawn Sprayer, Motorized Weed Wand Sprayer, Sunday Reusable Herbicide Pouch

