Is there something wrong with my lemon tree?
This is common with, both, iron and nitrogen deficiencies. It can also present itself when pH is far out of range, usually, too alkaline.
Be sure to test your soils and feed with fertilizers that are designed for citrus. This will, typically, be a little on the acidic side.
https://www.gardeningknowhow.com/edible/fruits/lemons/learn-about-fertilizer-for-a-lemon-tree.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/growing-citrus-trees-indoors.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
I have a lemon tree in a pot. I had planned to plant it in the yard this winter whilr it was dormant. It is now in full bloom. Is it too late to plant it in the yard?
You can plant it after the danger of frost has passed.
https://www.gardeningknowhow.com/edible/fruits/lemons/how-to-grow-a-lemon-tree.htm
I have had my Lemon tree 6 or 7 years. It lives in my conservatory. This year lots of blossom and lots of tiny lemons, there is new growth of young leaves. But it is loosing quite a lot of big leaves and some still on the tree are going curly. Does it want repotting?
It looks like it needs to be pruned, and if it has never been repotted, that will help, if only to refresh the soil. Also, the different sized leaves could mean you are getting suckers from the rootstalk that need to be removed These articles should help:
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/repotting-lemon-trees.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-pruning.htm
My lemon tree is three years old and FINALLY having blossoms; I am so excited! Should I pick off the blossoms this first year? Or just let them mature and fruit?
If it is 3 years old, I would let it bloom away. Usually removing the initial blooms is to allow the roots to establish, but yours should be established by now.
https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-not-fruiting.htm
I’ve tried reducing its watering and adding some more acidity but not sure it worked. Thank you for any advice/thoughts!
While there are a number of possibilities, drooping, falling leaves are often a sign of overwatering. Let the soil dry out a bit and snip away any dead leaves. It may be trying to recover, but if it keeps getting too much water, the roots will die, as will the tree. If the plant already has root rot, you may want to unpot it to trim away any roots that look like they've died and repot it. The soil should not get completely dry, but the roots don't take well to sitting in too much water.
This article outlines several other problems that could be occurring:
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
This one should also be helpful: https://www.gardeningknowhow.com/edible/fruits/lemons/lemon-tree-leaf-drop.htm
Is there a way that I can hasten my lemon tree which I planted from seed to bear fruit? It is 6 years old.
Unfortunately, a lemon tree grown from seed may never fruit, and if it does, it will likely be disappointing. Your best bet if you want fruit is to buy a grafted lemon tree. They fruit in about 2 years.
https://www.gardeningknowhow.com/edible/fruits/lemons/propagating-lemon-seeds.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/how-to-grow-a-lemon-tree.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-meyer-lemons.htm
Dear, lemons were planted from the seed in the seventh month of last year. Two months ago, I transplanted them into larger pots because their roots were sticking out of the pot. I wonder why they grow so slowly? They barely have 10 cm. I guess the problem is in the size of the bowl. And if you can advice for natural fertilization of such small lemons. Thank you
Try giving them more light. Lemon trees need 6 to 8 hours of full sun every day. Have you fertilized? That may help, too. Use a slow release fertilizer.
https://www.gardeningknowhow.com/edible/fruits/lemons/propagating-lemon-seeds.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/growing-lemon-trees-containers.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/learn-about-fertilizer-for-a-lemon-tree.htm
https://www.gardeningknowhow.com/edible/fruits/lemons/how-to-grow-a-lemon-tree.htm