I’ve run into some issues growing my onions this year. First year growing them and I’m definitely learning a LOT. Saying I love onions is an understatement. I remember hating fresh onions all my life until I was probably 16. I’m not really sure how it happened, somehow one sneaked into a sandwich and when I bit into it, it was like I never had an onion before! So for all you onion haters out there, just give your old potent, spicy, smelly friend a try one more time. Or maybe 15 times, I’ve heard it takes 15 or so times before your tastebuds get retrained to like something.
First lets talk about what onions love. Then we’ll dive into the many things I did wrong.
1) Make sure the soil is always moist for the first two weeks. This’ll make the difference between good and great onions.
2) Keep the weeds at bay. Onions grow so close to the surface and their roots are very shallow.
3) Sandy soil is the best for these guys. Keep it fertile and loose. 😉
4) Onions from seed take a long time to grow, so give them a head start. 8-10 weeks indoors before last frost date.
5) Like number 1, even after the first two weeks they need consistent water, if the top inch is dry give it a good water.
6) Spacing for onion plants. If you want bigger onions you need to space them 4-5 inches apart. If you want a higher yield with average size onions, 2 inches apart, and if you want scallions, 1 inch apart.
7) Spacing for onion sets: Remember, if you are buying sets of onions, smaller is better! They are already a year old and are ready to set out flowers, which isn’t what you want, so to prevent that from happening find the smallest bulbs and plant as soon as possible. If you are planting in rows, space them 6-8 inches apart.
Okay, now onto my experience this year with onions. The good, the bad, and the ugly.
I started out growing from seed in February, but between my wonderful dog, and my baby girl they didn’t really make it. So I went down to our local gardening store and picked up some onion sets.
1) My first problem was I thought I should buy the biggest set of bulbs so I could produce the biggest onions. Wrong. Smaller is better. They are less likely to bolt, so look for bulbs about the size of a dime.
Everything was growing great and strong and the leaves had started falling over so I thought it was time to harvest. When I went to pull them I noticed that most of them were fairly small. I was expecting baseball size onions and instead got golfball sized onions. Major disappointment.
2) To much nitrogen. I’m not sure if this was the reason for the smaller size, but I’ve heard that to much nitrogen can produce lots of leaves with small bulbs. Next season I will test my soil just to make sure that levels are normal.
3) Spacing. I believe I was spacing for onion seeds not for sets. So instead of giving them 6-8 inches of space, I gave them 3-4. (I’m feeling a little embarrassed.)
4) Know where your plants are from. I’ve heard a rumor that sets are known to grow smaller onions anyways but also, I have no idea where my onions came from! It is best to buy plants locally, but if that is not possible find varieties that are known to grow great in your climate.