Many people do n’t tend to think of plants as living things in pauperism of feeding . This feature film be given to resist out more in creature , what with their gaping mouths and ( sometimes ) tooth .

But flora take to be fed as well , even the unity that are n’t carnivorous . They need food that their roots can take up for utilization in development and growth , and some absorb nutrients mainly through their foliage .

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A horizontal image of a Japanese maple tree growing outside a residence pictured in autumn sunshine.

The Nipponese maple is one such plant , and nutrition provide at the root level is key . Asgardeners trying to domesticate this type of tree , it ’s our job to render all that it needs , which occasionally includes some redundant fertilisation .

We ’ll cover everything you need to get laid in parliamentary procedure to fertilize anAcer palmatumproperly . Going over the why , what , when , and how of fertilise Japanese maples is trusted to be a heroic old fourth dimension !

Here ’s what ’s on tap for this guide :

Image of a Japanese maple tree growing in the garden pictured in light sunshine.

What You’ll Learn

Why Fertilize Japanese Maples ?

What You ’ll require

When and How to Feed Your Sir Herbert Beerbohm Tree

A close up vertical image of the foliage of a Japanese maple tree. To the center and bottom of the frame is green and white printed text.

A well - naturalize landscape painting can require quite a bit of piece of work on the part of the nurseryman , and it ’s crucial to see why fertilization is good to these trees before you begin .

This will help oneself keep the aggravation at bay as you tot yetanothertask to an already long list of garden chores !

Aesthetics

A industrial plant that ’s provide with optimal nutrition will have a more pleasing appearance than it does when its victuals is lacking .

Macro- and micronutrients , as well as sunlight and water , are necessary ingredients for the growth and metabolic unconscious process that take place inside works .

When all of these physiological functions are run swimmingly , the plant is n’t lacking any of the key building block for rise beautiful flowers , arresting foliage , and vibrant barque .

A horizontal image of a Japanese maple tree growing outside a residence pictured in autumn sunshine.

A malnourished plant , on the other bridge player , wo n’t have the resources necessary to work , so it ’ll look a morsel under the weather condition at best , or sickly at bad .

Vigor

Much like with animal , malnutrition often leads to scrubby growth in plant . sealed food are needed for building central molecules like proteins , ribozymes , and chlorophyl .

Without these key components , healthy cell role ca n’t go on , and this is made apparent to us with slow , reduced growth overall .

Health

Proper nutrition also aids indiseaseand worm electric resistance .

When a plant life is lose of the essence nutrients , it perceives this as a stressor . Since biological organism can only stand a finite amount of physiological stress , the stress of malnutrition result the plant less able to make out with contagion and infestations .

But when a plant has all the nutrition that it need , it has a much better chance of successfully defend against pathogens andpests .

A horizontal image of a zen garden planted with bamboo, ferns, and red Japanese maple.

So you ’re now on board with fertilizing – awesome ! Here are some things that will avail you on your quest :

Humus

Also know as organic cloth , humus is what ’s left after plant and animate being affair decays . Whether it collects in acompost pileor is simply find in nature , humus improves a territory ’s nutrition , social organization , ability to hold water , and cation exchange capacity .

Cation exchange capacity ( CEC ) is n’t a measure of nutrition in the soil , but rather , a property trace its mobility , or capability to allow nutrition to flora . These concepts sound similar , but they ’re not the same thing .

See , nutrient such as atomic number 19 and atomic number 20 are positively charge ion , i.e. cation , and opposites pull in .

A close up horizontal image of a compost pile in a wooden container.

In a growing medium , these cation lodge to negatively charged humus particles and other type of organic affair with a very high CEC , and heavy soil particles with a high CEC , such as Lucius DuBignon Clay .

When roots tunnel through the ground , they sop up these nutrient . Sandy land , on the other hand , have a very low CEC .

The more hummus there is in the stain , the more positively - charged nutrient the filth can hold onto , and the greater the amount that a plant can absorb from aforesaid soil .

A close up horizontal image of a red Japanese maple tree growing in the backyard in fall.

But there ’s a subtle dispute here from how many nutrients areactually salute – what we ’re talking about is nutrient mobility , as opposed to total nutrient content .

Keep in brain that CEC has no bearing on negatively charge ion , or anions , such as nitrate . These forms of N are taken up by plants as well . But the ability to convert anions , since they ’re negatively charge ion , is n’t relevant to calculating CEC .

Negatively charge works food are n’t readily attracted to filth particles , but they ’re pronto carried away by rain and supplemental irrigation .

A horizontal image of two Japanese maple trees with bamboo in the background.

Well , except for phosphorus . It has a negative charge but it ’s not readily H2O soluble . Nonetheless , it can still bind with grime particles and move with overspill .

All this to say , hoummos is important . Compost , well - rotted manure , andpeat mossare all examples of humus that you could summate .

Fertilizer

Fertilizer allow gardeners and farmers to add nutrient directly to the dirt thoughtfully and meticulously . This is ideal for when the growing medium has a specific deficiency that you ’re trying to break up , and as it becomes course exhaust over metre .

Those negatively charged nutrients will move readily through territory , and positively commove nutrients will also move chop-chop through sandy soils and other types that are innocent of organic cloth , with a low CEC .

There are two types of plant food for gardeners to take from : constituent and synthetic .

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constituent fertiliser uses naturally occurring materials , such asbone meal , kelp repast , and bat guano .

These organic fertiliser have the interference fringe benefit of often providing subaltern and/or describe nutrients that are also naturally present , which’ll help in supply balanced nutrition to your trees and other plants .

Synthetic fertilizers also provide nutrients , but in the form of mined or manufactured compounds such as potassium nitrate and ammonium phosphate .

A close up horizontal image of a Japanese maple tree growing in the garden pictured in light sunshine.

These products are big at supply plant macronutrients – readily bioavailable forms of N , atomic number 15 , and potassium ( NPK ) –   but do n’t typically offer much in the style of subaltern ( or macro- ) and trace food such as Ca and branding iron . This can lead to likely toxicities as well as insufficiency .

It ’s best to go with organic over man-made , when potential .

man-made fertilizers be given to have a tight side effect of cut off the soil microbiome , meaning all those good microscopical organism that are present wo n’t be able to lend their tiny helping hands in keeping your garden goodish .

A close up of a package of Osmocote Plus Smart Release Plant Food isolated on a white background.

Organic fertilizers , on the other hand , furnish victuals without harm said microorganism .

Soil Test

Whether it ’s achieved via a do - it - yourself trial outfit or a hired expert , having your dirt properly evaluated for determine its nutritional levelsis authoritative .

How will you be able-bodied to fecundate decently without knowing what ’s lacking , if there are issue afoot ?

For the belief of a pro , enlisting the help of university extensions or professional services is the way to go .

A close up horizontal image of a Japanese maple growing in a garden with a wood stand in the background.

Luster Leaf Soil Test Kit

Forself - testing , Luster Leaf offers a DIY soil test kit that reveals nitrogen , phosphorus , and potassium levels , along with pH. you’re able to purchase this kit onAmazon .

Before you plant or transplant a Japanese maple , make certain you add two to four in of constitutional material – particularly if a grime test deems it necessary – into the soil around the planting site .

Do this by breaking up the grime , adding the hoummos , then mixing it all up via cultivation . This amendment will improve dirt texture and porosity while boosting nutritional content and aiding nutrient mobility .

Do n’t fertilise anA. palmatumduring its first raise season after planting .

The origin wo n’t be found , or developed enough for them to adequately uptake the sudden boot of nutrients . Your trees will be better off if you wait a class to provide any supplemental food .

As with most industrial plant , Nipponese maple should be fertilize in early spring , right before the leaves emerge . That way , the nutrition in the root geographical zone is “ top out off , ” per se , and useable to support that first flush of springtime increase .

For each annual round of general alimentation , you could go the humus route , or the straight - up fertilizer route .

If you opt for humus , you ’ll want to work two to four inches of an constitutional fabric such as well - rot manure or compost into the soil above the root zona .

For the commercial fertilizing option , Osmocote offers a slow - release , 19 - 6 - 12 ( NPK ) granulose fertilizer in eight - Cypriot pound udder that’savailable at The Home Depot .

Osmocote Plus Smart Release Plant Food

It ’s suitable for feed these trees because it ’s fortified with 11 essential plant nutrients and guaranteed not to sunburn plants – when apply according to package instructions .

Need to estimate out where your tree diagram ’s root zona is ? Critical root word typically run just outside the drip line , or the border crinkle where water might dribble from your tree ’s canopy when it rain .

For something a bit more exact , you may roughly map out out the root zone with some simple mathematics :

For most trees , the radius of the root word geographical zone increases by about 18 inches for every inch of trunk circumference .

catch a tape measuring and take the circuit of the tree trunk in inches from about four feet above the dry land . separate this number by π ( ~3.14 ) to get the diameter of your tree ’s body , then breed the Cartesian product ofthatcalculation by 18 .

carve up the resulting time value by 12 to exchange from inch to feet , and you have the wheel spoke of the origin zone extending away from the body in foot .

With that routine in mind , mensurate out the radius value from the automobile trunk four fourth dimension , with each mensuration at a 90 ° angle from the next like the four cardinal directions on a compass . Draw arcs connecting the four points – the result circle is your root zone .

If the leafage of your Nipponese maples is sporting some sickly - front greensickness – a common sign of a manganese , zinc , or iron deficiency – or you suspect another nutritionary deficiency of some form , a dirt test will reveal the specific nutrients that are lack .

They can usually be supplemented piecemeal , but the need for this is extremely unconvincing , sinceA. palmatumtypically does n’t take a short ton of fertilizing .

In fact , go too severely with the supplementation may causeover - fertilization , which comes with its own host of issues such as foliage embrown and foliar burning .

Interestingly enough : manganese , Zn , or smoothing iron want in maple are more pronto solved in the farseeing - term by lowering the pH of the soil , since these minerals are n’t as available in alkaline soils .

Be Wise and Fertilize

allow the right aliment can make or break a plant life , and the Nipponese maple is no exception .

A. palmatumis a beautiful tree , and it deserves to look its proficient and be at its healthiest . And now , you have the power to help thisAceralong in this way . How cool is that ?

For even moreJapanese maple know - how , enjoy read these guides next :

© Ask the Experts , LLC . ALL right RESERVED.See our TOSfor more details . Originally published August 27th , 2022 . Last updated : May 12th , 2025 . Product photos via Home Depot and Luster Leaf . Uncredited photos : Shutterstock .

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Joe Butler