Citrus fertilizing time – Schedule zone 9-11

Citrus fertilizing time – Schedule zone 9-11

Citrus fertilizing time – Schedule zone 9-11

If you have citrus in your backyard or anywhere and you want abundant of fruits, it’s time to get them fertilized. Yes, it’s time. I should have post this at the beginning of February but I was too busy… Okay, enough excuses.


Citrus is your lemon tree, orange tree, lime tree, and kaffir lime tree or anything citrusy. It’s still a citrus tree although we do not eat the kaffir fruit, only it’s leaves. I used the kaffir fruit as a zest, yummy. Let’s get to it, it’s citrus fertilizing time!

You must fertilize your citrus trees if you want to harvest the fruits. It should be fertilized during the growing seasons like spring and summer. You may fertilize during the dormant season like fall and winter but less frequently. Most likely once every two months.

There’s one thing to remember, inspect your trees. If it looks like it might need to be fertilize put some on. If it looks lush and green hold on, on the fertilizer. You don’t want to harm your trees if it is already producing every year.

What the citrus trees need to thrive

Citrus trees need magnesium; it’s for photosynthesis it gives the tree their green leaves. Manganese is for growth. You want them strong and big. Boron powder for fruiting. Boron helps with flowering, blooming, and fruiting without it, it’s will grow green and lush but no fruits. Not to mention iron, copper, and zinc. They also love acid soil. Not so much but somewhat.

Follow the directions on the package. Some may require you to spray onto the trees directly on the leaves. Some would have you sprinkle them around the outer edge of the root. Not directly on the tree trunk itself but the perimeter of the trees. Look at how wide the tree at high noon where you can use the shadow of the branches to sprinkle the fertilizer.

There are some fertilizer sticks made for citrus trees. Follow the directions on the package. It’s great for when you are out of town.


February is the first time. Remember that you must love your tree remember it on Valentine’s day. Then in May if you don’t it will die and will be remembered on Memorial Day in May. Finally in September because then after you harvest the fruit it’s will be labor on Labor’s day! That’s how I remember it. Corny? Yes!

Depending on how big your trees are it depends on how much fertilizer you’re going to use. Here are some steps to take.

When transplanting wait three weeks. After that, you would want to use 1/2 cup or .25 lbs of fertilizer of maybe 8-8-8 in February and gradually up to 3 cups or .6 lbs by September. Water thoroughly to protect the tender or young roots.

The 2nd year you want to fertilize every 8 weeks.

Start with .8 lbs in Feb. and gradually up to 1.5 lbs in Sept.

The 3rd year start with 1.4 lbs in Feb. and in Sept. 2.8 lbs.

The 4th year, start with 3.3 lbs in Feb. and in Sept. 4.2 lbs.

The 5th year and older start with 4.6 lbs in Feb. and in Sept. 5.8 lbs.

Container citrus fertilizing scheduleWatering

For those of you who have container citrus tree, you must keep it moist but not water log. The soil should be dry about 3″ (inches) to 6″ (inches), water it until the water drains through the bottom. It’s an indicator that it is watered completely through.

Use a trowel or hand tool to scratch the surface of the soil. Add 1 tablespoon for every 4″ inches of the container. Follow directions on the package because every container is different. Some people use 2-1-1 or all-purpose fertilizer.

Don’t forget to move your citrus tree into a shaded area or indoor in the higher zone like zone 9 – 11. Move your citrus tree indoor for cold seasons.

Which fertilizer to use

You can use any with the number 8-8-8 as a minimum, the brand to use is up to you. I find it very challenging for me because, yep, I live in the desert and my soil is not the greatest I use 16-16-16. I have to baby my trees. However, my kaffir lime tree does very well as far as leaves go.

It is huge and beautiful. I use them a lot for my cooking. Especially for my soup, kho pong. I think that’s how you say it. I also use them in my sausages when I make them. I love the smell, the aroma.

Use the fertilizer that is recommended for citrus and you should do just fine. I hope you’ll be right out there giving your trees some love. It’s citrus fertilizing time! Go now!


I hope that this will help you with your citrus needs. Thank you for stopping by. I appreciate it. If you have any comments or suggestions please leave them on my comment section and I’ll get back to you. Now go take on the day, challenge the unknown!

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Response to "Citrus fertilizing time – Schedule zone 9-11"

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  • Your math is off somehow. You say “you would want to use 1/2 cup or .25 lbs of fertilizer of maybe 8-8-8 in February and gradually up to 3 cups or .6 lbs by September.” But, if 1/2 cup is .25 lbs, then 3 cups is 1.5 lbs.

    • Hi Sandy,

      Thank you for correcting my math. It may have slipped my mind but you are absolutely correct, it is 1.5lbs. I am only human and I make mistakes. Let me clarify a few things. Nitrogen fertilization depends on size of the tree instead of age. Small citrus, 2ft-3ft is .25lbs to .50lbs/year. For 4ft-8ft citrus is .75lbs to 1lbs/year, and mature citrus that are taller to than that of 9ft- 10ft is 1.25lbs to 1.5lbs/year. You can fertilize it every month just as long as your math is correct. Over fertilized citrus would end up dry on the inside of the fruits and might have a small yields.

      Thank you for taking the time to correct me. Let me know if I have other mistakes.

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