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

This seed starter kit is perfect for small plants and herbs. You get five trays with 40 cells each, giving you 200 seedling chambers in total. Each chamber has a hole in the bottom for proper watering and easy transfer. The package includes a dibber and a widger to help you relocate. The lid shuts tight over the tray, too. 

A few reviewers commented that the material is too flimsy and warps in hot weather or intense direct sunlight. Meanwhile, many others liked the size of the trays and cells, saying they're easy to work with. They added that the tools are well-made and perform well. 

These trays are more compact for convenient setup in tight spaces. The dome lids have an adjustable valve so that you can properly control the humidity and moisture for optimal germination. You also get nifty plant markers to keep track of the different seedlings. 

According to a few reviewers, the quality of the trays might not be durable enough for repeated use. Some also found the drainage holes to be poorly made. Meanwhile, many others said that their size and setup were perfect for their plants to grow. They also liked that this kit is easy to use and germinated their plants quickly. 

This seed starter kit includes two trays with 36 cells each. You also get growing pellets that transform into growth-inducive soil for seeds. After four weeks of growth, you can also add Burpee's organic starter plant food to promote strong roots. 

A few reviewers noted that excess moisture might be an issue. Some also had difficulty expanding the pellets. Still, many others reported that it successfully grows seedlings if you follow the instructions. They also liked that this kit is easy to use. 

If you're working with taller or larger plants and require a different-sized cell, this propagator will address your needs. The tray doesn't come with chambers, allowing you to customize it. Furthermore, this one has one of the tallest dome heights available on the market, and the height can be extended using detachable side panels.

A few reviewers said that the dome and extenders don't hold humidity well because there isn't a tight seal. On a positive note, many others said this is a solidly-built kit that can be reused. They added that the size of the tray holds a good amount of seedling pots.

This portable greenhouse lets you start seeds in a fool-proof way. The kit comes with pellets in each cell that expand with water. You also get plant markers, a watertight tray, and vitamins for the seedlings. The cells are lifted slightly for better water intake, too.

A few reviewers experienced issues with mold. However, others noted that you have to follow the instructions properly. Overall, many reviewers said this was one of the best propagation systems on the market, especially with the vitamins and pellets. They liked that it's very easy to use and helps seedlings grow well.

This propagation kit is equipped with a fluorescent grow light to boost seedling growth. The tray is also compatible with a heat mat to increase the growth rate. The base tray also fits most standard seedling pots and plug trays. All you need are your seeds and soil, and you're good to go! 

A few reviewers complained that the plastic is too thin and flimsy, while some had issues with the light flickering after continued use. Still, most reviewers said this is a reliable propagation system with a high success rate. They liked that the dome has a good seal for humidity control. 

This propagation kit comes with a waterproof heating mat to boost the germination process of your seeds. It has 72 cells that are perfect for smaller plants and herbs. The dome is two inches tall and comes with an adjustable valve that lets you control the humidity.

A few users complained that the dome doesn't fit tightly onto the base tray, causing moisture to drip out. Meanwhile, most reviewers said that it successfully grows seeds at a fast rate. Some reviewers said they were concerned about the pad's heat, but they said it actually sprouts all of their seeds very well! 

These growing trays are only ten by four inches, making them perfect for windowsills and small areas. You get everything you need to start growing, including seed starters, domes and trays. By keeping your seedlings by the window, you give them access to direct sunlight, which boosts germination. 

A few reviewers said that the peat soil starters make it difficult to transfer the seedlings to their permanent spot, noting that the soil breaks off. Meanwhile, many reviewers had no issues growing different plants and vegetables by their windows. They noted that the kit was easy to use and gave them great results.

This kit allows you to grow bonsai trees indoors or outdoors. It comes with everything you need, including shears for tending. It comes with Brazilian Rosewood, Flame Tree, Black Spruce, and Colorado Blue Spruce seeds. If you're new to bonsai growing, it comes with an instruction booklet for guidance. 

A few reviewers noted that the material is mold conducive. Meanwhile, many others shared that the trees take time and patience, but they do grow. They added that the seeds grow in different climates which affects the success rate. Others also loved the gift-friendly packaging. 

Newspaper is biodegradable, making it a great eco-friendly option for starting seeds. Simply wrap a piece around the wooden mold to make a pot. Burpee's soil pellets also fit the pots perfectly. Once your seeds have started, you can transfer them directly to the ground. There's no need for delicate transplanting!

Users said that this pot maker works well, saying the included instructions help them form the pots perfectly. They shared that you can use any paper material to make pots. Plus, they said that this wooden mold lasts for years.