Questions tagged [citrus]

For questions about citrus trees.

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19
votes
2answers
1k views

How should I prune lemon trees?

I have a lemon tree that is 8 years old. I didn't water it enough during its first years, and as a result it's only 2 meters (6 feet) high. How and when should I prune my lemon tree to stimulate its ...
19
votes
1answer
12k views

What is my citrus deficiency, based on leaf appearance? And how to treat?

In the images of my citrus below, you can see the leaves are paling towards the edges. What is the deficiency and how can I fix it? The soil is clay-dominated with some sand and coloured red, ...
15
votes
2answers
8k views

Will my lime tree recover from cold shock?

This is my first attempt to grow something and it hasn't started off well. During the last winter, my Persian lime tree wasn't protected well enough from a cold front. All the leaves fell off, and the ...
14
votes
1answer
913 views

Do I need to correct the pH of my newly re-potted citrus tree?

I tried my hand at making my own soil for my citrus tree re potting. See below for the long story reasoning. I mixed EKO store bought (I live in an apartment) organic compost with coco coir and ...
13
votes
2answers
23k views

Why isn't my lemon tree growing?

We planted a lemon tree five and a half years ago. Today it's about the exact same size as ever. I've tried using citrus fertilizer, but to no avail. We've had dry summers and wet summers, but ...
12
votes
4answers
6k views

Why is my Orange tree not bearing fruit

I have an orange tree for about 4 years. It bears flowers but they fall off. I have seen only 2 fruits from this tree. What may I be doing wrong. See pictures. Some leaves have holes. Not sure if ...
12
votes
1answer
2k views

What insect/disease causes lemons to look like a Cthulhu and how can this be prevented?

Earlier today, pictures of weirdly shaped lemons were shared on reddit. The top comment there says it is a case of citrus bud mites, which actually seems to make sense. My questions are: Is this ...
11
votes
2answers
337 views

Lemons? Limes? Oranges? These trees are wierd!

I inherited 3 trees when I bought my house and all three have thorns on the branches with two trees having what appear to be lemons with orange highlights. When opened they have a very thick skin, ...
11
votes
1answer
3k views

Why does my lemon tree have black scabs on the lemons and yellow spots on the leaves?

We've recently moved to a new house which has a lemon tree in the backyard in dire need of some TLC -- but we're not quite sure what exactly is wrong with it. Two primary problems, which may or may ...
10
votes
2answers
2k views

Can anyone identify this abnormality that is on my dwarf citrus?

I recently noticed what looks like small beetles on our dwarf citrus tree. Can anyone identify this abnormality? Click image for full size Is this something harmful that I should attempt to treat?
10
votes
2answers
358 views

Is there such a thing as a specifically indoor only orange/citrus tree?

I obtained an orange tree a few months ago and it always seems to have a lot of problems. Curling leaves, yellow leaves and dying leaves. I am not looking for suggestions as to why I have problems ...
10
votes
2answers
2k views

Will a lemon tree grow back after being cut down low?

My lemon tree was cut down very low by the person cutting my yard. The tree was about two years old. It was cut with a weed eater.
10
votes
1answer
10k views

Why are these white dots appearing on my citrus and avocado trees and the leaves getting pale?

My Orange and small avocado trees are becomming yellowish and have many dots on them, is this a deficiency of something or something else? I checked the bottom of the leaves for any sort of plague ...
10
votes
1answer
1k views

Why are my limes taking a long time to ripen?

I have an indoor lime tree and it grew blooms and fruit for the first time (in seven years) this spring. I'm very excited. Now, it has 4 or 5 fruits on it and they've been on there since April or so. ...
10
votes
1answer
4k views

Is my lemon tree dying?

I'm on my 2nd lemon tree. I live in Melbourne, Australia and lemon trees are the norm around here. I suspect my first one died as it outgrew its pot, which was half the size of this one. I'm ...
9
votes
2answers
235 views

How big a lemon tree can I grow indoors?

I recently (yesterday) received a lemon tree as a gift. It's a little more than two meters tall, and comes with a giant pot, maybe around 50 cm in diameter and height. I'm planning on growing it ...
9
votes
1answer
2k views

what care should I give my lemon and orange tree after 8 months neglect?

In July I moved into a new house with an established lemon tree (about 4-5 m high) and orange tree (3-4 m high). Apart from collecting the last crop we have left them alone. The previous tenants grew ...
8
votes
4answers
701 views

Why do the leaves of my (very young) Eureka lemon tree look folded?

(Edited to add more detail and an update at the end) I have a small Eureka lemon tree that is few months old, and is currently showing signs of weakness that are worrying me. In more detail, some ...
8
votes
3answers
134 views

Why do fertilizers for the same plant type have significantly different ratios?

We have a beautiful, large citrus tree that hubby grew from a seed 25 years ago. It lives in a pot due to cold winters here, but spends as much time as possible outside - better for the tree and us. ...
8
votes
2answers
126 views

Can I save any of this orange harvest? (probably under-watered tree)

The house I'm renting has a number of fruit trees. I'm in San Jose, CA and with the drought, it has been a challenge to give them the right amount of water while still conserving. It seems the mature ...
7
votes
7answers
28k views

What to do about grubs in vegetable garden and potted tree?

This Spring there seem to be grubs all over my garden, in just about any handful of dirt you flip over. There are lots of articles about how to handle grubs in your lawn, but I don't have a lawn, just ...
7
votes
2answers
429 views

Does my very young Eureka lemon tree have leaf disease?

I have had a small sprout of lemon tree (Eureka lemon, if I trust the label) for a few months, and for the past two it has been looking weak and sick. In particular, it's not making new leaves (...
7
votes
1answer
785 views

Trimming back a Meyer Lemon tree

I have a Meyer Lemon tree that I brought inside for the winter and am now ready to bring outside. The problem is that there's no good place inside where it would get 100% sunlight, instead only part ...
7
votes
1answer
2k views

Ants and white fluff on my citrus tree leaves

I've noticed this weird thing on the underside of some of my citrus tree's leaves. It looks like a number of ants stuck in a bunch of white fluff. This is only on some of the leaves, and it's mostly ...
7
votes
2answers
423 views

Red streaks in Louisiana sweet oranges

We have orange trees that have always produced "orange flesh" oranges. This year a few of the oranges have red streaks in them. Is is possible that this year the flowers were crossed with a blood ...
7
votes
1answer
6k views

Why have my lemon seedlings stopped growing and turned yellow?

I planted some lemon pips in November last year, and they grew to about 4cm tall, and it seems as if they aren't growing anymore. They have been the same size since December, and they have now turned ...
7
votes
1answer
929 views

Are my orange tree's yellowing leaves a sign of underwatering?

I have a mature orange tree in my back yard and I've noticed that the lower leaves at the extremity of have started to to yellow over the last couple of months. Is this a sign of overwatering? ...
7
votes
1answer
88 views

Citrus plant with strong growth but yellowish/lime-green leaves

I know that (generally speaking) yellowish to lime-green leaves combined with slow/weak growth in a plant are an indication of inadequate nitrogen, and one must fertilize accordingly. However, does ...
7
votes
1answer
10k views

What is causing curled leaves on different varieties of citrus?

Is anyone able to identify this disease / pest? We have this on several citrus of different types including an orange, grapefruit, lime, and a mandarin orange. My first thought was that it could be ...
7
votes
1answer
90 views

How late in the spring can I plant a citrus tree in Phoenix, Arizona?

Due to circumstances beyond my control I will only have the option of planting citrus trees at the beginning of June this year. The temperatures in Phoenix, Arizona will average highs above 100°F (38°...
7
votes
1answer
785 views

Can I plant bulbs (e.g. tulips) under a lemon tree?

I've just been given some tulip bulbs, and pondering where to put them. I have space near a lemon tree that I have just planted. I have read that lemons have shallow roots, so you shouldn't plant ...
7
votes
1answer
1k views

Why do the leaves on my Meyer lemon have blotchy yellow areas?

I have a Meyer lemon that I purchased a few months ago. I potted it into a self watering container with some potting mix mixed with some peat. It's flowering and small fruit are forming but the leaves ...
6
votes
3answers
2k views

Can citrus tree health affect the seed count in the fruit?

I have a Clementine Orange which used to produce pleasant fruit that was lightly seeded. In the last few years, the number of seeds in each orange has increased dramatically. The tree has fallen to ...
6
votes
1answer
325 views

Need help identifying this disease for my lemon tree

Some of the branches on my lemon tree don't look particularly healthy. Taking a closer look at the leaves indicates that it may be related to some disease. Please help me identify the issue and cure. ...
6
votes
3answers
4k views

Can I graft a branch of a sweet orange onto a sour orange tree to get sweet fruit?

I have two old citrus trees, one bears sweet navel-type oranges and the other has hundreds of impossibly sour, tiny oranges. Would it be possible to chop off a branch from the sweet tree and attach ...
6
votes
1answer
3k views

Can I graft a Navel or Valencia orange tree onto an established citrus tree?

I have a mystery citrus tree that bears sour and almost inedible small oranges. This tree is about 10 years old. I'd like to cut-off its branches and graft on branches from a Navel or Valencia orange ...
6
votes
1answer
246 views

What kind of disease does my orange tree have?

Within the span of a few days, my Citrus sinensis started to display what looks like dandruff on the back of the leaves. As of now, many leaves have dried up and some have fallen on the ground. What ...
6
votes
1answer
490 views

Can I graft an orange tree to a hardier northern root stock?

I know you can graft like trees to like trees, but my question is: Can I graft an orange tree to a northern hardy root stock like a peach tree, and have it still grow and maybe produce an orange or ...
6
votes
1answer
434 views

Do Orange and Lemon Trees need annual pruning?

I have a lemon and orange tree in my backyard. I have apple and pear trees as well which I prune on an annual basis. I was wondering if the lemon and orange trees need pruning as well and if so, how ...
6
votes
1answer
69 views

Problem with my Meyer's lemon tree

I have a Meyer's lemon tree that is several years old and this year it has flowered, I pollinated because we don't have many bees, the fruit has set but I am finding that quite a few of the baby ...
6
votes
1answer
94 views

Fertilizing multi-variety fruit trees

I have a few fruit trees (apple, pears, oranges, grapes) and need to fertilize them. What is the best way to fertilize them? I am planning to use a mix of chicken manure and horse manure. Do I need ...
6
votes
1answer
477 views

Why has my orange tree turned yellow and stopped bearing fruit?

I live in Spain, and this year my orange tree has turned yellow all over, with no flowers or fruit. What could it be? I have taken a picture.
6
votes
1answer
312 views

Is my dwarf orange tree too young to bear fruit?

I planted a dwarf orange this winter. It came from the nursery with oranges already on it. They are still green, and one split through the skin so I cut it off. Should I leave the rest on? Or ...
6
votes
1answer
95 views

Whitening of some leaves of a potted key lime tree

I have a potted one-year-old-or so lime tree, which has looked quite healthy for the past two months or so (after recovering from a winter where it lost a lot of leaves due to overwatering). Since ...
6
votes
1answer
983 views

Should I kill off one of the plants from a polyembryonic citrus seed to let the other grow?

I am growing some indoor citrus trees from seeds and found the seeds to mostly all sprout two plants. They are all about 1.5 inches tall right now and for each pair of plants one is clearly larger and ...
6
votes
1answer
681 views

Why would my citrus tree have dying twigs, burrowing insects and black scale?

My citrus tree is not healthy. The leaves are falling off, and the twigs are becoming brown and dying: In the middle trunk, where a large branch was pruned years ago, there seems to be some burrowing ...
5
votes
4answers
2k views

How can I support oranges as they grow?

I have an orange tree growing in my backyard. I am not sure of the exact species. It has 4 oranges growing on it right now. Three of them appear to be very healthy. The other one is very small and ...
5
votes
1answer
321 views

Practical identification of suckers on a cumquat tree

I have a small cumquat tree, and sometimes it grows new, low branches, which I suspect are suckers. But how can I be sure, how can I decide whether to prune them or not? Here is a picture of the ...
5
votes
2answers
647 views

Is this a sucker? Can they grow above the graft line?

I have a citrus tree of the Washington Navel variety, which is around 4 years old (and has been here for 2 of those). Naturally this means it's a scion grafted onto rootstock of which I don't know the ...
5
votes
2answers
112 views

Key lime tree: white mush/mold (?) on the roots, and curling whitening leaves

This is a followup to this question, from a couple months ago. I tried yesterday to edit that question to include the followup, but it was not very well-received -- I assume it was not the right thing ...