Checklist · 11 picks · 4 categories
Links to Amazon are affiliate links. I earn a commission if you buy, at no cost to you, and it never decides a pick. How I make money
Affiliate link.
Starting seeds inside gets your tomatoes and peppers going weeks before it's warm enough to plant outside.
You need three things: a tray with a dome to hold in moisture, a seed-starting mix (Bob Vila says it should be lightweight, hold moisture and still drain well), and light. A heat mat is optional but helps warm-weather seeds sprout; Bob Vila's testers ran theirs for a month and its thermostat pick sprouted tomatoes and two kinds of peppers. The trays and mats come from Bob Vila's published tests, the mixes from its seed-starting mix guide, and the grow lights from Bob Vila and NBC Select. Each card shows the drawback the outlet found.
Who this is not for. Skip this if you want herbs on the counter with zero setup; the Indoor Herb Garden list has smart gardens that do the work for you.
Tell me what you can spend. I pick a tier for every item, essentials first, and show what is left. The first amount covers everything you need at the cheapest tier.
Pick a budget to see your plan.
Your plan lives in this link. Copy it or email it to yourself so Safari doesn't forget it.
Estimates based on typical prices, checked Oct 30, 2026. Prices change; see the store for today's price.
0 of 3 on your list · tap one to see your options
| Pick | Tier | Price | Best for | Evidence |
|---|---|---|---|---|
| Jiffy 36 Peat Pellet Seed-Starting Greenhouse Kit | budget | $15-25 | a first try at seed starting | 1 outlet |
| Park Seed Bio Dome Seed-Starting System | mid | $25-50 | starting a lot of seeds without the mess | 1 outlet |
| Vego Seed Starting Mixed Bundle Tray | splurge | $50-100 | committed growers who'll reuse it every spring | 1 outlet |
Best seed traybudget pick · 36 pellets
Best for a first try at seed starting
Bob Vila's best bang for the buck seed starting tray: an inexpensive, beginner-friendly kit with plantable peat pellets and starter fertilizer.
Heads up. Flimsy plastic, and the dome has no vents
1 outlet. Bob Vila best Bang for the Buck seed starting tray.
$15-25
Shop on AmazonAffiliate link. I may earn a commission at no cost to you.
mid pick · 80 cells
Best for starting a lot of seeds without the mess
Bob Vila's best kit seed starting tray: a complete, ventilated, low-mess system with sponges instead of loose soil.
Heads up. Very bulky, and replacement sponges cost extra
1 outlet. Bob Vila best Kit seed starting tray.
$25-50
Shop on AmazonAffiliate link.
splurge pick · 40 cells
Best for committed growers who'll reuse it every spring
Bob Vila's best overall seed starting tray: durable trays where every cell tray gets its own dome with a drip chamber for gentle watering.
Heads up. Expensive upfront
1 outlet. Bob Vila best Overall seed starting tray.
$50-100
Shop on AmazonAffiliate link.
| Pick | Tier | Price | Best for | Evidence |
|---|---|---|---|---|
| Vivosun Seedling Heat Mat and Digital Thermostat | mid | $25-50 | one mat for every kind of seed | 1 outlet |
| Vivohome VH074 Waterproof Seedling Heat Mat | budget | $15-25 | lettuce, green onions and other easy sprouters | 1 outlet |
| Bn-Link Seedling Heat Mat With Digital Thermostat | mid | $25-50 | fussy seeds like peppers | 1 outlet |
Best heat matmid pick · 10 x 20.75 in
Best for one mat for every kind of seed
Bob Vila's best overall seedling heat mat: durable and versatile, it works with or without its thermostat and germinated most seeds in reviews.
Heads up. Struggles to reach the top of its temperature range
1 outlet. Bob Vila best Overall seedling heat mat.
$25-50
Shop on AmazonAffiliate link.
budget pick · 10 x 20.75 in
Best for lettuce, green onions and other easy sprouters
Bob Vila's best bang for the buck seedling heat mat: an affordable, simple mat for easygoing seeds like lettuce and green onions.
Heads up. Limited temperature range
1 outlet. Bob Vila best Bang for the Buck seedling heat mat.
$15-25
Shop on AmazonAffiliate link.
mid pick · 10 x 20.75 in
Best for fussy seeds like peppers
Bob Vila's best seedling heat mat with thermostat: precise control that sprouted tomatoes, bell peppers and chili peppers in its test.
Heads up. The thermostat unit is bulky
1 outlet. Bob Vila best with Thermostat seedling heat mat.
$25-50
Shop on AmazonAffiliate link.
| Pick | Tier | Price | Best for | Evidence |
|---|---|---|---|---|
| Burpee Organic Coconut Coir Seed Starting Mix | budget | under $15 | small spaces with no room for a soil bag | 1 outlet |
| Miracle-Gro Seed Starting Potting Mix | budget | under $15 | seedlings that need a little food from day one | 1 outlet |
| Hoffman Seed Starter Potting and Planting Soil | mid | $15-25 | seeds now, cuttings and transplants later | 1 outlet |
Best seed-starting mixbudget pick · 8 qt
Best for small spaces with no room for a soil bag
Bob Vila's best coconut coir seed starting mix: a compressed organic coir brick that expands into seed-starting mix when you add water.
Heads up. Dries out faster than other mixes
1 outlet. Bob Vila best Coconut Coir seed starting mix.
under $15
Shop on AmazonAffiliate link.
budget pick · 8 qt
Best for seedlings that need a little food from day one
Bob Vila's best bang for the buck seed starting mix: a peat-based mix with plant food mixed in to help roots get going.
Heads up. Meant for container use only
1 outlet. Bob Vila best Bang for the Buck seed starting mix.
under $15
Shop on AmazonAffiliate link.
mid pick · 4 qt
Best for seeds now, cuttings and transplants later
Bob Vila's runner-up seed starting mix: a light, fertile soilless mix made for germination that also works for cuttings and transplanting.
Heads up. Some seeds take a while to fully germinate
1 outlet. Bob Vila runner-up seed starting mix.
$15-25
Shop on AmazonAffiliate link.
Best grow lightbudget pick · Standard bulb
Best for turning a lamp you already own into a grow light
Bob Vila's best bang for the buck grow light: an affordable bulb for a standard lamp that was strong enough to sprout herb seeds.
Heads up. Needs a lamp and a timer, and the glare is harsh if you look at it
1 outlet. Bob Vila best bang for the buck grow light.
$15-25
Shop on AmazonAffiliate link.
budget pick · Compact
Best for plants on a dim shelf or desk
NBC Select's best grow light in its 2026 gardening guide. It clips onto a table or shelf and has a timer, and a gardening expert there says grow lights keep indoor plants healthy.
1 outlet. NBC Select best grow light.
$15-25
Shop on AmazonAffiliate link.
means three independent outlets recommend a pick, means one, and limited evidence means none has yet. I research these picks. I have not tested them myself. How I pick · Broken link, wrong price range or an outdated pick? Tell me
A seed tray with a humidity dome, a seed-starting mix and a light source are the essentials. A heat mat is a nice extra for warm-weather crops like peppers.
Not for every seed. Bob Vila says its budget mat suits easygoing seeds like lettuce and green onions, while its thermostat pick, the Bn-Link, is the one for temperamental seeds like peppers.
Bob Vila's guide says a seed-starting mix should be lightweight, hold moisture yet drain well, and be free of harmful contaminants, which is why the picks here are fine, peat- or coir-based mixes.