• 10 Best Seed Starter Kits in 2022 (Master Gardener-Reviewed) 1
  • 10 Best Seed Starter Kits in 2022 (Master Gardener-Reviewed) 2
  • 10 Best Seed Starter Kits in 2022 (Master Gardener-Reviewed) 3
  • 10 Best Seed Starter Kits in 2022 (Master Gardener-Reviewed) 4
  • 10 Best Seed Starter Kits in 2022 (Master Gardener-Reviewed) 5

10 Best Seed Starter Kits in 2022 (Master Gardener-Reviewed)

Planning to grow some herbs, vegetables or flowers but not sure of your success rate if done outdoors? A seed starter kit can greatly help boost your success in growing seeds even if the weather does not permit any planting. To prepare you for this growing season, we've done the research for you to find the best ones.


We've considered numerous kits available and came up with a 10 best list of the best seed starters. Gardzen's 5-Set Garden Propagator Set takes first place because it makes things easy to grow numerous seeds and eventually transfer them to a more permanent spot. Along with nine other great choices, we've also included a buying guide reviewed by a master gardener and homestead blogger to help you get started on this gardening tool that many cannot live without. 

Featured in this article

Amy Jeanroy
mybest US Editors
  • Last updated: 09-06-2022
Table of Contents

How to Choose a Seed Starter Kit - Buying Guide

The buying guide below will explain these propagation systems and point out certain aspects that cater to your gardening requirements. After reading our guide, you will be able to buy a seed starter kit confidently! 

Pick the Right Size for Your Crop

Pick the Right Size for Your Crop

The size of the starter kit should match the seed type. For example, if you're planning to grow large vegetables, like tomatoes, cucumbers, zucchini, or squash, the seedlings may quickly outgrow small one- or two-inch chambers. You will need to transfer them to a bigger pot when this happens, but this transfer could risk damaging the sensitive shoots.

 
The chambers or cells (where the soil and seeds go) need to be large enough for your seedlings, but you also need to consider if the dome height will accommodate fast-growing and tall plants. You don't want them to get crowded or bent while they grow!

Check That the Plant Transfer Process is Stress-Free

Check That the Plant Transfer Process is Stress-Free

Given that you won’t be keeping your seedlings in the starter kit, the transfer to their permanent spot in a garden or larger pot should be considered. 


Some kits include tools, like a seedling dibber and widger, to make it easier to transplant the seedlings. A dibber is a long-pointed stick to create holes or loosen soil, while a widger is a forked spatula that can lift out seedlings with minimal damage to the delicate roots.

 
You also need to consider the type of plants you’re working with. For example, perennial herbs and flowers, parsley, and peppers are among the slowest to germinate, meaning you will wait a while before they can be transferred

Check That the Plant Transfer Process is Stress-Free

Some plants can’t tolerate having their roots disturbed, so the entire ball of soil surrounding the roots should be transferred. Tools like dibbers and widgers come into play to help move your seedlings delicately.


We recommend flexible plastic or silicone trays with a pop-up feature or completely biodegradable trays that go straight into the ground to easily transfer extra-sensitive plants. Also, check the reviews to see if the parts fit snugly so you can carry the entire thing easily from one location to another.

Look for Key Features Like a Water Tray and Plastic Dome

Look for Key Features Like a Water Tray and Plastic Dome

When choosing a seed starter kit, ensure that it has a tray underneath for water overflow. This tray catches water so that the soil around your seedlings remains moist but not too wet. This also keeps the surroundings of your kit tidy and mess-free.

 
Seed starter kits should also include a cover so that you can trap warmth and humidity to speed up germination. This cover usually is a plastic dome, and the dome height is vital in ensuring that your plant type has enough room to grow while inside an optimal environment.

Consider Adjustable Vents and Reusability

Consider Adjustable Vents and Reusability

There are other features in seed starter kits that make them more worthwhile. Being dishwasher-safe makes them easy to clean, sterilize, and prep for a new batch.


Air vents in the dome help maintain proper airflow and interior temperature. These also prevent your plants from getting too damp and getting a fungal disease.

Grab a Complete Set if Preferred

Grab a Complete Set if Preferred

A complete starter kit with all the necessities is a perfect fuss-free option. Some kits include seeds, tools, and a growing medium like coco fiber, peat pellets, and perlite (although you may prefer to mix your own). Some even come with plant markers or labels that are especially convenient when working with a wide variety of seeds.

 
If your space gets chilly or has access to minimal sunlight, you can also check for a warming mat placed under the tray to control the temperature. A grow light can also really help with the process!

Grab a Complete Set if Preferred

Are you looking for a kit with an eco-friendly twist? You can go for pot makers that function as molds for you to create your pots. You wrap some newspaper around the pot maker, and you get a chamber perfect for starting seeds.


It’s a simple, inexpensive, and straightforward process. From there, you can transfer your seedlings directly into the ground since newspaper is biodegradable. Or, you can keep them on a tray during germination. 

10 Best Seed Starter Kits

Here is a list of the best seed starter kits readily available online. Some trays can fit larger plants, while others are best for herbs and small vegetables. There are also nifty features to choose from, such as an adjustable valve for humidity control or a built-in grow light. 


*Please note that these products were chosen after extensive research by mybest writers. The choices are not necessarily affiliated with or recommended by Amy Jeanroy.

Image
1
Gardzen 5-Set Garden Propagator Set 1

Gardzen

2
Mixc Seed Trays Seedling Starter Tray 1

Mixc

3
Burpee Seed Starting Greenhouse Kit 1

Burpee

4
EarlyGrow  Medium Seed and Herb Domed Propagator  1

EarlyGrow

5
Jiffy Professional Greenhouse 1

Jiffy

6
Super Sprouter Deluxe Propagation Kit  1

Super Sprouter

7
Jump Start Germination Station With Heat Mat Tray 1

Jump Start

8
Window Garden Seed Starting Kit 1

Window Garden

9
Garden Republic Bonsai Tree Seed Starter Kit 1

Garden Republic

10
Burpee Seed Starting Pot Maker 1

Burpee

Name

5-Set Garden Propagator Set

Seed Trays Seedling Starter Tray

Seed Starting Greenhouse Kit

Medium Seed and Herb Domed Propagator

Professional Greenhouse

Deluxe Propagation Kit

Germination Station With Heat Mat Tray

Seed Starting Kit

Bonsai Tree Seed Starter Kit

Seed Starting Pot Maker

Features

Get Lots of Seeds Started and Transferred With This Kit

User-Friendly Trays With Adjustable Vents

A Kit That Promotes Healthy Root Growth

A Versatile Tray With a Customizable Dome Height

Beginner-Friendly Greenhouse With a Tray

Propagation Kit With a Built-In Grow Light

Heat-Conducive Kit That Promotes Growth

Complete and Compact Seed Starter Kit for Windowsills

Grow Your Own Bonsai Trees

DIY Eco-Friendly Seed Starting Kit

Price$19.99$18.99$19.99$32.39$22.43$46.40$31.72$18.99$34.95$19.95
Cell dimensions1.4 x 1.4 in. 1.5 x 1.5 in. 1.5 x 1.5 x 2 in.N/ANot specifiedN/ANot specified Not specifiedNot specified N/A
Number of cells40 per tray12 per tray36 per trayN/A50N/A72 10 per tray4 potsN/A
Dome heightApprox. 2 in.Approx. 2.25 in.Approx. 2 in. 10.5 in.Approx. 3 in. 7 in.2 in. Not specified NoneN/A
MaterialPlasticPlasticPlasticHard plasticPlasticPlasticPlasticPlasticWood, burlap Maple wood
Items includedDibber, widger, 5 trays, 5 domes, 5 base trays10 plant markers, 10 trays, 10 domes, 10 base trays6 plant markers, pellets, 2 trays, 2 domes, 2 base traysTray, side extensions, domePlant markers, vitamins, dome, base trayInstruction booklet, grow light, dome, base trayHeat mat, tray, base tray, dome3 domes, 3 base trays, 30 seed starters4 plant markers, 4 seed packets, 4 soil discs, 4 burlap pots, wooden box, instruction manualWooden mold, stand
Link
1

Gardzen5-Set Garden Propagator Set

5 trays

$19.99

Cell dimensions1.4 x 1.4 in.
Number of cells40 per tray
Dome heightApprox. 2 in.
MaterialPlastic
Items includedDibber, widger, 5 trays, 5 domes, 5 base trays
2

MixcSeed Trays Seedling Starter Tray

10 trays

$18.99

Cell dimensions1.5 x 1.5 in.
Number of cells12 per tray
Dome heightApprox. 2.25 in.
MaterialPlastic
Items included10 plant markers, 10 trays, 10 domes, 10 base trays
3

BurpeeSeed Starting Greenhouse Kit

2 trays

$19.99

Cell dimensions1.5 x 1.5 x 2 in.
Number of cells36 per tray
Dome heightApprox. 2 in.
MaterialPlastic
Items included6 plant markers, pellets, 2 trays, 2 domes, 2 base trays
4

EarlyGrow Medium Seed and Herb Domed Propagator

$32.39

Cell dimensionsN/A
Number of cellsN/A
Dome height10.5 in.
MaterialHard plastic
Items includedTray, side extensions, dome
5

JiffyProfessional Greenhouse

J450ST-20

$22.43

Cell dimensionsNot specified
Number of cells50
Dome heightApprox. 3 in.
MaterialPlastic
Items includedPlant markers, vitamins, dome, base tray
6

Super SprouterDeluxe Propagation Kit

HGC726403

$46.40

Cell dimensionsN/A
Number of cellsN/A
Dome height7 in.
MaterialPlastic
Items includedInstruction booklet, grow light, dome, base tray
7

Jump StartGermination Station With Heat Mat Tray

$31.72

Cell dimensionsNot specified
Number of cells72
Dome height2 in.
MaterialPlastic
Items includedHeat mat, tray, base tray, dome
8

Window GardenSeed Starting Kit

3 trays

$18.99

Cell dimensionsNot specified
Number of cells10 per tray
Dome heightNot specified
MaterialPlastic
Items included3 domes, 3 base trays, 30 seed starters
9

Garden RepublicBonsai Tree Seed Starter Kit

$34.95

Cell dimensionsNot specified
Number of cells4 pots
Dome heightNone
MaterialWood, burlap
Items included4 plant markers, 4 seed packets, 4 soil discs, 4 burlap pots, wooden box, instruction manual
10

BurpeeSeed Starting Pot Maker

$19.95

Cell dimensionsN/A
Number of cellsN/A
Dome heightN/A
MaterialMaple wood
Items includedWooden mold, stand

Try Out These Gardening Essentials

Looking for more ways to enjoy gardening? We have a few suggestions to get you started!

Buying Guide Reviewed by Master Gardener and Homestead Blogger Amy Jeanroy

Amy Jeanroy
Master Gardener, Homestead Blogger
Amy Jeanroy

This expert reviewed the contents of the buying guide for accuracy and provided factual corrections when necessary. They did not participate in the product selection process, nor are they affiliated with any of our choices unless explicitly stated so.

Author: Hana Otsuka


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