Questions tagged [fertilizer]

Nutritional supplements for soil. Use this tag with questions about how to use or how to choose fertilizers for specific plants.

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16 views

Do Agriform tablets work well for existing mature plants & trees?

My landscaper used Agriform tablets as fertilizer when he planted trees and plans in my landscape. It has been ten years and time to fertilize the plants and trees again. I have a choice of using ...
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2answers
15 views

Is applying fertilizer to newly planted rootball laurel bushes a good idea?

I've recently planted some medium size (about 4' or 1.25m) root-balled cherry/common laurel bushes. Some are looking a little unhappy a couple of weeks later and I wondered if applying some balanced ...
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3answers
65 views

Need help interpreting my soil test results and fertilizer recommendations

The guy from the lab told me to use 13-13-13 fertilizer. my Lawn is 4000 sq feet, 1 (8 pounds/1000 sq ft) in April and 1 in May end. And then 1 each in September and October end. Also, use liquid ...
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1answer
52 views

Can I use seeds as a fertilizer?

Since seeds are packed with nutrients, could it be a good idea to break them (so they don't sprout) and use them as a fertilizer?
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1answer
18 views

Leaf scorch on perennials from fertiliser

Fertiliser was applied correctly but some of the leaves were wet and it was only watered off after signs of scorch and wilt. The leaves are scorched on some of the plants. Will the plants put on ...
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4answers
121 views

Are synthetic fertilisers necessary in potting plants?

Is it possible to have healthy plants (edible ones) flourishing in pots without the use of synthetic fertilisers? I have concerns regarding fertilisers polluting nearby water sources/soil from ...
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1answer
18 views

Is humic acid good for Norfolk Island Pine tree

I have a Norfolk Island Pine tree discussed here. I want to improve its well-being. Would liquid humic acid be helpful? What kind of fertilizer would be most effective? Is there any related ...
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17 views

How to feed and mulch fruit bushes

I found some good information on looking after fruit trees of types common in the UK here (https://www.rhs.org.uk/advice/profile?pid=539) Essentially: Clear ground of grass around the trunk Apply ...
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30 views

Fertilizers with harmful levels of salts

I read in some articles that potassium chloride and ammonium sulphate can lead to salinity buildup. Is there a simple way to tell by looking at the fertilizer formula if a fertilizer can increase salt ...
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1answer
54 views

Can you bleach human poop to use as fertilizer?

I was thinking about how in The Martian the astronaut used the crew members poop to fertilize the soil and grow potatoes and decided to learn more about that. I read, though, that unprocessed human ...
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23 views

Optimal hydroponic nutrient solutions for different herbs

I'm planning to grow different herbs hydroponically: basil, sage, mint and thyme. I would like for the nutrient solutions for each herb to be the closest possible to the optimum. For basil I found ...
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1answer
48 views

Can you “feed” an avocado plant with avocado pits?

I have grown an avocado plant using the infamous toothpick method, i.e. suspending an avocado pit in water using toothpicks. Since the avocado pit contains the necessary nutrients, I left it in water ...
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37 views

Can I use bonsai liquid fertilizer on my regular houseplants?

I have 0.5 liter bonsai liquid fertilizer that has outlived my bonsai. I have tried to give it away for free in my local Facebook plant groups, but as it seems no one is really into bonsai in my area. ...
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611 views

Is this an acceptable way to use green waste on plants?

From what I've read online, it looks like I'm not composting correctly. I don't have much space in my backyard so there's no space for a compost bin/pile. Instead, I've been putting scraps of food at ...
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2answers
317 views

Why do fertilizer ratios not add to 100?

I often see fertilizer NPK ratios that are advertised as "percentages" but the numbers do not add up to 100. My Latin is little rusty but I think per centum means per a hundred. So, in that ...
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1answer
41 views

Coffee grounds as pesticide or fertilizer (in general and/or for Chinese Evergreens)

Earlier today, I noticed a lot of small tiny flies emerging from the Chinese Evergreens I purchased last weekend. At the time, I just had my freshly ground and used morning coffee beans... so I tried ...
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1answer
45 views

Liquid fertilizers and other solutions

I am searching for organic/natural ways to feed the soil & the plants and to let beneficial microbial and fungal colonies thrive. What I am not good at is timing, and the exact recipes of ...
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20 views

Low cost, liquid acid fertilizer

I am growing strawberries which I read prefer acid soil to alkaline one. I also read that using water that were used for beans soaking is recommended as a fertilizer. Will using it make my soil more ...
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0answers
16 views

Do sweet potato tops make good fertiliser tea?

I am growing sweet potato in my back yard and I come to realize the abundant amount of potato tops after harvesting, do they make a good fertiliser tea or I would just add them to the compost?
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13 views

Why is my Miranda not coming to full pitchers and it has brown spots?

I have a Miranda Nepenthes and I've had it for about 8 months or so. It is growing like crazy but I haven't had a pitcher to get to full maturity since it came in the mail. It starts to grow pitchers ...
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2answers
77 views

Can I use these fertilizers for my hydroponics system?

I am planning to start growing using hydroponics. Unfortunately I'm unable to obtain fertilizers that are made specifically for hydroponics. However, I can get water-soluble fertilizers. The images of ...
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1answer
24 views

Can plants in soil less culture (rockwool, coir) survive on a nitrate based nutrient solution without ammonium?

I have studied nutrient composition of fertilizers. Most soil fertilizers contain an about equal amount of nitrate and ammonium as a source of nitrogen, while most soil less fertilizers contain more ...
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45 views

Single large brown spot on Dracaena Dorado

I have been giving my dracaena dorado some fertilizer this year, on and off, maybe twice a month or less since March. I let it dry out between watering. The leaf tips were turning brown so I moved it ...
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Outdoor potted Mango seedling leaves are shiny brown

I started seedlings from mango out and doing really well but worries since leaves are a mahogany brown color. Too much water, not enough water? Need fertilizer, if not when it does, what kind and how ...
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1answer
32 views

Front yard shrubs need a boost

I come over from New Zealand once a year and get the family garden sorted. This year I haven't been able to arrive any earlier because of Covid-19. So we are in the middle of summer and the garden ...
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19 views

The leaves on my peace lily are turning brown and yellow, the tips as well as the edges?

I got a peace lily plant from ikea a 5 months ago and ever since then the tips of the leaves are turning brown, or some of the leaves will turn yellow and then go brown form the outside in. I water it ...
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1answer
31 views

Blood fish and bonemeal

Because of its composition, this fertiliser is attractive to rodents. I find that a topical application often results in the soil in pots being tossed about - as they search for the meat/carcase which ...
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1answer
47 views

Use of hydrated lime as a calcium source

We have blossom end rot problem which is apparently a calcium deficiency. We have some builder's lime which I am told is calcium hydroxide and would like to use that as the calcium source. We can't ...
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3answers
81 views

Is algae good as a fertilizer for plants

I recently went to a beach and saw large masses of green and red algae, wondering if I could use this marine algae as a source of nutrition for my plants. If this is effective and not risky, should I ...
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43 views

What is going on with my coffee plant?

I have a coffee plant; I don't know the exact variation but I think it's "arabica". I got it as a small plant in a foam coffee cup 10+ years ago. It's currently located on a wall facing an East window....
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59 views

Banana tree health declining after repotting, yellowing leaves

I recently received a banana tree as a gift and as it is starting to decline I am worried about it. First off, I live in southern Canada (London) so I don't have a tropical climate but its been quite ...
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1answer
26 views

How to fertilize strawberries in containers?

I have strawberries in containers and i want to fertilize them. What is the best approch and what type of fetilizer do I need?
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What are these white granules at the leaf-ends of my gold fruit palm?

I have had a gold fruit palm in my apartment for over a year now, and it has always been happy and healthy. Recently I have begun fertilising it once a week or so with a (German) liquid palm ...
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2answers
44 views

How to convert garden fertilizer dosage to container dosage?

I have a bunch of old-school mineral fertilizers that I would like to use for container plants. The problem is that the dosage on them is grams/m2, lets say for simplicity it is 100 grams/m2. How do i ...
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What should I do if my pepper plants got too strong of fertilizer and they are wilting?

Basically, I added too much fertilizer to my pepper plants unknowingly. I thought it would help them, but the ends of the pepper plants are starting to turn brown and their stems are weak. Also, one ...
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5answers
3k views

Is fertilizing a zero-sum endeavor?

Maybe a better way to put this question is: Given an isolated garden bed, that had no external inputs except light, water and air. If you were to grow plants in it, compost those plants and add them ...
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4answers
167 views

Burnt dead plants as fertilizer

Just wondering if anyone has tried using burnt dead or discarded plants as fertilizer for new plants, and how much of the nutrients you can recycle if you reuse the waste from the previous harvest. My ...
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2answers
35 views

Garden Soil Mix

First time gardener her. The wife and I decided to get our thumbs green and give veggies a go. We are going to be growing in buckets and garbage cans, and a few potato sacks. I was investigating ...
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24 views

What is causing my avocado tree rot on leaf

I’m a newbie to growing avocado tree. This guys been growing for afew months and has recently started getting light brown spots on one of its leafs. The other leafs look okay apart from one or two ...
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1answer
49 views

Fertilizing a plant with its own fruit

From multiple sources I've understood that vegetable peels, such as potato peels, can be used as fertilizer for various plants. What about fertalizing a plant with its own fruit, or another part, such ...
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1answer
31 views

Does chemical fertiliser have an effect on growing newly germinated seeds in darkness using the “Petri Dish” method?

The situation is as follows. I am using the "petri dish" method of germinating chilli (pepper) seeds. It is just a takeout container + paper towel + water. The seed is sitting on the paper, not ...
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1answer
147 views

How to take care of White Sandalwood Plant in the Pot?

Previously, I have posted this question on SE and it was related to Red Sandalwood plant (dead now). Recently, I have purchased a new White Sandalwood plant. But, I think that the condition of this ...
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2answers
142 views

Using water soluble fertilizer as nutrient solution

I am quite new to hydroponics so forgive my ignorance :) I am planning to make a simple DWC set up (for tomatoes) and was wondering if I could use a water soluble fertilizer (20-20-20 with Mg Fe Cu ...
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553 views

Forcing a non-grafted lemon tree to produce blooms & fruit

About 8.5 years ago I successfully germinated a lemon seed from a store-bought lemon (I believe it was a Eureka lemon). Fast-forward to today and that lemon seed has grown into a 9-foot tall tree. ...
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1answer
40 views

Can crushed rapeseed be used instead of rapeseed meal as fertilizer?

Traditionally, the Japanese use rapeseed meal as fertilizer. This is a non-waste production, they extract oil from seeds and use the resulting meal as fertilizer. But I wondered: is it possible to use ...
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1answer
78 views

Why do turf winterguard (applied late fall) fertilizers have no “P” (phosphorous)?

A leading brand's fall food is 32-0-10. As I understand it “P” helps roots grow. The fertilizers say they help grow deep roots. So at first glance seems odd to exclude this macro. My hypothesis ...
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1answer
29 views

Testing for nitrogen after applying blood meal?

In preparation for refreshing a garden box for a winter season, I tested for nutrients and found it was very low in nitrogen. I added more soil and amendment (for other reasons -- neither has many ...
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1answer
61 views

Does the glyphosate in our urine make it improper for use as a fertilizer?

It is known that urine has many positive effects on plants due to its chemical composition (Nitrogen, Phosphorus, Potassium). However, it is now also known that even organic food consumers end up ...
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2answers
495 views

Whitish film over mustard cake tea

I had kept mustard oil cake dissolved in water in order to make fertiliser tea. But a whitish layer appeared over it after three days. Will it be safe to use that tea on my potted plants?
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3answers
124 views

Tomatoes seem to be stagnating?

I planted 4 tomato plants later in the season (mid June?). I have a 12" raised bed with good soil in it and they get about 10 hours of direct sunlight every day. I water them every other day with ...

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