Today I started my onion seeds, and I wanted to show the Rooted Crew exactly what I did in case anyone else wants to try growing onions from seed this year.
First, I mixed up a batch of seed-starting soil using the soil calculator. Itās that simple peat-based seed mix that stays light and drains well.
Once the soil was ready, hereās the process I followed.
My Onion Seed Starting Method
1ļøā£ I filled a 1-gallon nursery pot with the seed starting mix.
2ļøā£ I watered the soil first so the mix was evenly moist before planting.
3ļøā£ I sprinkled the onion seeds across the surface of the soil.
I didnāt try to space them perfectly. Onions actually do well when they start out a little crowded like this.
4ļøā£ Then I added a very light dusting of soil over the seeds.Just enough to barely cover them.
5ļøā£ I gently watered again to settle everything in.
6ļøā£ Finally, I placed the pot in a sunny window so they can start germinating.
Now we wait for the little green onion threads to start popping up. š±
Why I Started Them in a Bigger Pot
A lot of people start onions in trays, but I like using a larger pot sometimes because it lets the seedlings grow together for a while.
Later on you can simply separate the seedlings into little bunches and transplant them into the garden.
Itās simple and it works.
Quick Onion Tip: Long-Day vs Short-Day Onions
This part confuses a lot of gardeners, so hereās the quick explanation.
Onions form their bulbs based on day length, not just age.
Long-day onions
⢠Start forming bulbs when daylight reaches about 14ā16 hours⢠Best for northern areas like Wisconsin, Michigan, Minnesota, etc.
Short-day onions
⢠Start forming bulbs when days reach 10ā12 hours⢠Best for southern climates like Texas, Florida, and Georgia.
Since we live farther north, long-day onions are the right choice.
If you plant the wrong type, the plant might grow leaves but never form a proper bulb.
Why Growing Onions From Seed is Worth It
Most people buy onion sets, but starting from seed has some advantages:
š± Much bigger variety selection
š± Often produces larger bulbs
š± Usually cheaper if you grow a lot of onions
Plus thereās something satisfying about watching those tiny little grass-like seedlings turn into full onions later in the season.
Curious What Everyone Else is Starting
If youāre starting seeds right now, drop a comment.
What are you planting this week?
Tomatoes?
Peppers?
Onions?
Letās see what the Rooted Crew is growing. š±