I’m not sure why all the pictures didn’t upload together here it the rest.

Thank u Vladimir, no I did not spray anything. I will definitely put it in a light colored clay pot. I now am thinking when it was in the scorching heat the black plastic container burned the roots a little, hopefully still ok.

Try your question on our AZ fruit tree group on Facebook -

https://www.facebook.com/groups/2328852860722036/

Unless you bought a dwarf, and the tag doesn't say dwarf, you either need a HUGE pot (25 inches across) or you need to put it in the ground. Lisbons are big lemon trees, so first choice is in the ground. Plus, no plant likes hot roots, and in the ground is going to be cooler, even in the 100s. You should wait until Oct/Nov before replanting though, so absolutely water it every day until then and keep it on the north side and keep the roots in shade too. My dad had a citrus ranch, and overwatering is not an issue in summer in the desert for baby plants in pots--you are probably getting advice written for northerners trying to grow citrus indoors, who can easily overwater their little pet citrus trees.
Carla in Sac

I tend to agree, if you are in a climate that supports it, you are far better off growing citrus in ground, for Lisbon that would be USDA zone 9a higher (if sheltered on the south side of a heat retaining wall), preferably 9b or higher.

Elizabeth lane I will check that out thanks!!

Sautesmom/Ike Stewart...thank u both for the advice...I will water every day or when ever it gets dry...this scorching heat is insane here...

If your potted lemon survived the summer, or if you are willing to try anew, here is my experience with Lisbon Lemon. It is a tropical plant (think humid air) that lives in the wild in thin well-drained soil. The one I grew in the ground did very well in spite of our alkaline soil, probably because it drained so well. It was destroyed in two consecutive week-long deep freezes about ten years ago.

So I switched to a potted tree. Several potted citrus, in fact, that I placed on rollers to bring onto the porch and drape on freezing nights. These have been more challenging, but I've learned a thing or two, viz.:

In summer, keeping potted citrus sufficiently hydrated can lead to root rot if the soil is too heavy and the pot is plastic or glazed or dark colored. So, my recommendation is to get a large terra-cotta pot that will breathe. Make sure the interior is not painted. Make sure that you check for pot-bound roots, and gently loosen and spread them if you see this.

Plant potted citrus in bagged cactus/palm soil rather than the richer soil usually recommended for citrus. I've come to think that a breathable pot and light soil are key to success with potted citrus in our climate.

Most citrus sold in Arizona nurseries is imported from the more humid climate of California where haze provides unnoticed but important protection. Or it is grown in a greenhouse in Arizona, where, again, the air is humid and the light filtered. Once outdoors, in the dry air, it has little protection from our severe sun. So, place it where it will get morning sun but shade from mid-day onward, and rotate it for even growth.

If you can't provide this condition, try draping it in cheesecloth raised on bamboo stakes in summer to give it a filtered shade. Not the prettiest sight in the garden, but you will have happier plants.

In our climate, any plant in a pot is living a harsh life. The watering washes away nutrients, and there is no alternate source, such as naturally decaying vegetable matter from adjacent plants. So, while feeding three times per season suffices for in-ground citrus (Valentines Day, Memorial Day, Labor Day), I find that potted citrus need a little more. I give them half-strength fertilizer (or weaker) alternate weeks during growing season.

With Lisbon lemon, it is hard to find a shrubby tree in local nursuries, but keep looking. These can be pinched at the tips to keep it a managable size. The more tree-shaped single-trunked standard form will want to grow into a tree, and make itself hard to manage in a pot. The single-trunk form is better for in-ground planting.

Good luck with your citrus, present or future!