For questions about citrus trees.

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16
votes
2answers
975 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 ...
15
votes
1answer
7k 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, ...
12
votes
2answers
3k 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 ...
12
votes
1answer
574 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 ...
10
votes
1answer
1k 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 ...
9
votes
2answers
890 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 ...
9
votes
1answer
6k 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 ...
9
votes
1answer
64 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. ...
8
votes
2answers
282 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 ...
8
votes
2answers
45 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 ...
8
votes
2answers
621 views

How do I care for grapefruit seedlings?

I got two tiny grapefruit seedlings for free and I don't know how to care for them. They are in very small pots and all the care they are getting is watering. They are 2" tall. I don't live in the ...
8
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
1answer
2k 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 ...
7
votes
1answer
723 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
3k 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 ...
6
votes
6answers
4k 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 ...
6
votes
4answers
818 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
5k 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 ...
5
votes
4answers
182 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
2k 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 ...
5
votes
1answer
143 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 ...
5
votes
1answer
380 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 ...
5
votes
1answer
203 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 ...
5
votes
1answer
1k 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 ...
5
votes
1answer
251 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 ...
5
votes
1answer
45 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.
5
votes
1answer
53 views

What is this disease on my lime plant? [duplicate]

What is this disease on my lime plant? And how to fix it?
5
votes
1answer
61 views

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

Due to circumstances beyond my control I will only have the option of planing citrus trees at the beginning of June this year. The temperatures in Phoenix, AZ will average highs above 100 throughout ...
5
votes
1answer
136 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 ...
5
votes
1answer
194 views

What are some recommendations for a potted orange tree?

My wife and I would like to have a potted orange tree. We live in the San Diego area so the climate for citrus trees is near perfect, but we don't know what kind of tree we should buy. Also, how large ...
5
votes
1answer
445 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 ...
5
votes
1answer
66 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 ...
4
votes
3answers
101 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 ...
4
votes
2answers
129 views

Are citrus trees better grown using containers or in the ground?

I would really like to get a couple citrus trees (lemon and/or lime). The problem is I live in an apartment. I hope to move at some point such that I will have some land that I can put these in. My ...
4
votes
2answers
786 views

Buying citrus trees online in Arizona [duplicate]

Possible Duplicate: Can you bring citrus trees into quarantined states? I'm trying to buy a Washington Navel Orange Tree in Arizona. When I search online these are priced between $30 and ...
4
votes
1answer
90 views

Why is my indoor lime tree growing fruit without pollination?

I'm growing a lime tree indoors. It's about 7 or 8 years old now and finally producing some flowers and also fruit. I just read a home guide from SFGate that manual pollination is required to grow ...
4
votes
1answer
34 views

Why won't my citrus trees fruit?

I have 6 citrus plants bought from the nursery and it has been in ground for 5 years in full sun and still no flowers nor fruit. How can I get it to fruit
4
votes
2answers
131 views

Should I prune or remove fruit before transplanting a citrus tree?

I have inherited a beautiful Mandarin tree that has spent quite some time in a pot. It has a lot of fruit on it that is ripening right now that will be ready for picking very soon. The tree has been ...
4
votes
1answer
133 views

How do I take care of my very small Kaffir lime tree?

What is the general care of Kaffir lime (Citrus hystrix) trees? I have a very small tree that I'm growing as a houseplant. How do I care for it? Does it need a bigger pot?
4
votes
1answer
51 views

Getting a grapefruit tree to bear fruit in Phoenix, AZ?

We planted a grapefruit tree in our yard about 3 years ago. It was probably about 2 feet at the time. It is now about 6 feet and looks healthy, gets plenty of water and hubby has fertilized it some, ...
4
votes
1answer
811 views

Orange tree has pest or blight [duplicate]

A few leaves on my orange tree have this. What is this? What can I do about it?
3
votes
1answer
1k views

What was this large yellow-green fruit I ate in Ethiopia?

This summer I was eating a strange type of fruit in Ethiopia and I'm still curious to know what it actually was. The taste is similar to citrus fruits (little bit acid like a lemon and bitter like a ...
3
votes
1answer
36 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 ...
3
votes
2answers
199 views

Do ants eat scale on lime trees?

Location: Pietermaritzburg, South Africa When: Feb 2015 (summer in Southern Hemisphere) A couple of questions. First: Is this Scale in the first photo? If so, what type? If not what is it? Second: ...
3
votes
2answers
245 views

How to prevent fungus on soil in self watering pots?

Below is a picture of one of my lemon trees, where the soil is covered with some sort of fungus. When I remove it, it comes back in 2-3 days. I am suspecting the problem is, that lemon trees can't be ...
3
votes
1answer
57 views

Flesh of Kishu is dry

I planted a seedless kishu mandarin at the beginning of the year and it's produced around 20 mandarins. I've just tried a couple and the flesh inside is very dry: desiccated. The skin still hasn't ...
3
votes
1answer
289 views

What is this white substance growing on a kumquat tree?

I've had a kumquat tree on two different balconies for about three years. It's put out a few kumquats over the years, and lately started to again. Recently I noticed this white substance growing on ...
3
votes
2answers
77 views

Should young citrus (kumquat) seedlings be kept under direct sunlight or indirect sunlight?

After the seeds have sprouted, should the initial stem and cotyledons be kept under direct sunlight or indirect sunlight, assuming watering once a day? At what stage should they be moved to direct ...
3
votes
1answer
4k views

Are lemon tree roots unusually damaging to nearby concrete?

A colleague told me that in a region where all tree removal required consent he had processed many consents for removing lemon trees and concluded they (and limes) are particularly bad at damaging ...
3
votes
1answer
25 views

How to cure sticky citrus leaves?

In the pic you can see big sticky drops on my indoor citrus tree. I have the citrus tree right next to window. I have there also another 3 small citrus trees like this, but only this one has sticky ...