Subscribe for discounts, free growing tips + more recipes. Read all Posts »

Double Cup Seed Starting

Double Cup Seed Starting is a super easy way to start pepper seeds and vegetable seeds! These red Dixie cups are large and nice and deep, allowing for deep root growth. Of course seedling trays work well too, with the 4" pots, but sometimes you gotta work with what you've got! You can grow nice healthy seedlings in these cups under supplemental lights  (a very sunny window that gets sun all day could work, too!)



Use well-draining seedling starter mix for the growing medium. Don't forget to label your cups so you know what's what! Many pepper plants and tomato plants look the same, so you may not know until you see the pods and taste them if you don't label them. You can also reuse the cups and plastic baggies each year (clean after using  and store out of the sun.)

This double cup seed planting method works great for all sorts of vegetable seeds, including pepper seeds such as Hatch Chile seeds, plus tomato seeds, herb seeds, and so many other veggies.

Pepper Seed Germination - the Secret
Do you know the secret to pepper seed germination?

Make sure to keep pepper seeds warm while germinating, peppers like 80-90˚ F temperatures for fastest and most successful sprouting. We use a seedling heat mat to keep them toasty until they germinate. Then, you can stop using the heat map if the room they're growing in is around 65-70˚ F, they'll be perfectly content. However, note that if kept warmer at 75-80˚ F they could grow a little faster!

Top 12 tips for Growing Peppers from Seed


Want more tips for successfully
growing peppers? Find our
Top 12 Tips for Growing Peppers from Seed »

 

Happy growing!

Back to blog
  • Container Size for Peppers

    Container Size for Peppers

    We often get asked from our seed customers: What is the Best Container Size For Peppers?  Our recommendation is to plant peppers in containers that are at least 5 gallons in...

    Container Size for Peppers

    We often get asked from our seed customers: What is the Best Container Size For Peppers?  Our recommendation is to plant peppers in containers that are at least 5 gallons in...

  • List of Peppers by Heat

    List of Peppers by Heat

    Here is our 2026 list of all of our peppers from around the world based on their heat level, from sweet to super hot! Find the perfect pepper with the just the...

    List of Peppers by Heat

    Here is our 2026 list of all of our peppers from around the world based on their heat level, from sweet to super hot! Find the perfect pepper with the just the...

  • Tomato Leaves Rolling: This tomato plant looked fine a couple weeks ago, but it's been over 95˚ F for the last couple weeks, and it's suffering from the heat. 

    Why Are My Tomato Leaves Rolling?

    Why Are My Tomato Leaves Rolling? It could be heat stress, not disease! This tomato plant (above) looked fine a couple weeks ago, but this Denver garden has had highs...

    Why Are My Tomato Leaves Rolling?

    Why Are My Tomato Leaves Rolling? It could be heat stress, not disease! This tomato plant (above) looked fine a couple weeks ago, but this Denver garden has had highs...

1 of 3
Fastest Growing Peppers - Shishitos grow super fast and are very productive!

Fastest Growing Peppers

These are the fastest growing peppers that you can grow from seeds... 

Discount Seeds: 50% Off Seeds + Free Shipping on US Orders over $30

50% OFF SEEDS

Check out our 50% off Seed Discount deals below. Signup for our... 

Best Peppers for Containers - Easter Peppers are gorgeous!

Best Peppers for Containers

If you want to grow peppers in containers, below are our top...