This is the end of onion growing season in Phx. It is in their nature for the tops to turn brown and fall over in June, that is the plant's signal to you to harvest. Replant outdoors as andy mentions, in the fall, Sep - Oct time frame for use as chives and bulb harvest through winter/spring. Good luck.

Thank you both for the advice! It's hard to throw them out right now since it's my first time but I'll take them outside time to time to see what happens. I'm sure they'll die soon. Lol

Do either of you have any advice on what is the best herb to grow indoor currently? Also have either of you planted mint before?

xiong, they will definately die, their season has past. Pull the onions and place in a paper lunch sack in the fridge. Plant them in the fall.

No experience with mint, basil does well in summer. But anything you put in that window will struggle as not enough light gets to the plant, as andy said. Grab an organic sweet potato, cut it in half and use toothpicks to suspend each half in a glass of water. It will quickly sprout and will do well in that window. But it's ornamental only, unless you want to snip and plant the sprouts. That's what I'm doing now.

Plant mint in the fall. It'll do great but kind of melts in the summer heat. I have sweet mint that is doing OK in a pot in the shade, peppermint isn't doing well at all and stevia planted in the ground in the shade seems to be holding its own.

P.S. I have really good luck planting the white parts of scallions outside. Poke a hole in the dirt with your finger and just pop them in there. Within a day, you should see growth. When I need them for cooking, I just pull them up and "give them a haircut." I'm still working off one set I bought from the grocery store last fall. They grow pretty well in light shade.

Hah! Good to know.

Mary is right. I have the same multiplying onions I've grown for probably 35 years, maybe longer that I got a start of from someone at the old Valley of the Sun Men's Garden Club. They are in the ground. Doesn't take a lot of room. They are dying down now, but I was surprised today to see some green coming back already. That doesn't usually happen until August or so. They might be confused with this unusual weather we've had this Spring. If you pull up a bunch, separate and plant each one fairly deep, you'll get a decent small green onion before it starts to bunch again, but we use these mainly for cutting the tops for chives.

I buy a bag of onion sets in the fall when they come out and stick a few in the ground every 10 or 14 days for really nice green onions thru out the winter. I don't have enough room to grow the brown cooking onions, altho they do very well here in the Valley. We used to go to the onion fields when they were harvesting and buy a 50# bag for almost nothing. Don't know if they still do that or not. The dry onions we grow here are generally not a good long term keeper. Brown onions are generally pretty cheap in the stores here, and whoever has the best price when we need some, we can just price match at WM so don't need or want 50# at a time anymore.