please post pictures.

You being in AZ with low humidity it is doubtful it is a fungus. One of two
things I can think of, too much heat or too much fertilizer. I only fertilize
June bearing after harvest. Once a year. They are not heavy eaters. With
everbearing you fertilize anytime, I have found after first harvest the best. It
looks like fertilizer burn to me. Hard to tell a number of leaf issues with
strawberries, they develop all kinds of leaf problems. Mostly fungal. I use
fungicides on mine before flowers in the spring. that has worked for me. Captan
mostly. Again though that is not a typical looking fungal problem. Looks like
burn. I guess it could be too much water too, or not enough.

You might try a variety that does better in high heat.

EarthBoxes are engineered systems, you can't "wing it", cut corners or apply other gardening techniques to them. I would ignore any advice from someone that hasn't grown anything in an EarthBox before. Are you using an approved soil mix? Did you mound the mix properly (it should look like a loaf of bread)? What fertilizer did you put in the strip? Is the box wicking correctly? Answers to these questions and a full photo of your box would be helpful.

I have 16 of them myself. You should try them mrclit!

I used the approved potting mix (not soil) and I used their (Earthbox's) planting kit so it had their approved fertilizer and everything. And the 'mound' in the center is good sized. And the box is wicking fine. I have spinach, tomatoes, lettuce and zucchini in other boxes and they are all doing fine. I placed the boxes where they get early morning sun and have afternoon shade and it hasn't been very hot here yet. And I used the white side up of the cover to reflect the sun as instructed.

Totally confused.

Sounds like you're doing everything right. Remove the damaged leaves. Maybe just some time and they will come around. Many times leaf damage is due to root damage. If it continues, dig one up and look at the roots. Some of the possible problems already mentioned.

I just read where strawberries sort of go dormant during winter months and turn brown, then new green leaves come out during spring. Maybe mine are having a hard time waking up...lol. I guess it all depends on what nursery they originally come from too. I will cut the brown leaves off and see what happens. Thanks.

I live in Michigan and bury mine in straw, they stay green all winter. I do lose some to exposure, and some leaves do turn brown and die. Mine are growing right now. Zone 5.
It may just be some transplant shock and effects due to a cold winter for them. So yeah they hopefully will come around. But just to let you know turning brown is not a good thing, not in winter, not anytime. I grow them in raised beds and in window box type planters. Mine are uncovered now and growing, have been for a couple weeks,. Here are some from today. Notice none are brown, and the low last night was 39F. When I uncovered them they were green.

I still though think yours should be fine, if they can turn around soon. I have had ones like yours grow new leaves. They were not covered good enough.

I use these boxes mostly for cloning plants. The runners hang over and I can grow them in pots to be moved to raised beds. Like this one.

Thanks for the chat. I cut off all the brown leaves this morning and made sure the soil under the cover was moist enough and it was so that tells me the earthbox is working properly. I will keep babying them and see what happens. If they snap out of this sulk and bear some fruit, I will post some pics.

Thanks again, Margie

Hi Margie - I just came across your post as I'm having the same

issue with my earth box strawberries now. Did it work out for you?