As we come to an end with our Fall Compost Back program, we are aware that many of our subscribers may be spending less time getting their vegetable gardens ready for September than they do during our Spring rotation. However, there are still many methods to make the most of your finished compost at this time of year even if you don’t have a garden. Using finished compost in your indoor plants to promote soil health and plant growth is one of our favorite suggestions!
This is a favorite among the Compost Crew because it doesn’t call for a sizable backyard and can be applied to any plant! To make the most of your nutrient-rich black gold with your houseplants, we wanted to share some recommendations with you.
Compost must be used in the proper quantity to ensure that your plant receives the necessary nutrients without causing harm.
When using completed compost, you can either repot the plant in a mixture of 30% finished compost and 70% of your regular soil mixture, or you can apply a few inches of compost on top of the soil.
A house plant may get root burn if its pot contains an excessive amount of finished compost because the surplus phosphorus is held in the soil and overwhelms the plant. Keep a watch out for browning leaves and generally reduced growth to see if this is happening to your plant. Browning roots are another sign of root burn, however that is harder to spot from the surface. Cleaning the nutrient-rich dirt from the plant’s roots and repotting it in a soil mixture with more balanced nutrients are the best ways to care for plants that have experienced root burn.
Apply compost once or twice a year to your indoor plants to get the most advantages from it.
Given that completed compost often has very fine particles, it makes sense to combine it with soils that have larger pieces in order to promote drainage and prevent soil compaction.
Even though houseplants are sometimes overlooked when utilizing finished compost, doing so can be a simple approach to boost your plants’ general health and encourage growth. The long-term health of your indoor plants can benefit from finished compost since it can help them retain nutrients and moisture. We always enjoy seeing pictures of how you’re putting the compost to use, regardless of how you use your completed compost. Keep an eye out for our customer portal’s upcoming opportunity to acquire your soil amendment in the spring.
Can you compost dead houseplants?
Yes, you can compost dead plants. However, exercise caution before doing so since if you don’t take the proper safety measures, you could end up shooting yourself in the foot. In the composting pile, dead plants, such as flowers and leaves, are a great source of carbon. They should therefore generally be composted.
Nevertheless, exercise caution. But only if the dead plants were in good condition. If they included pathogens, get rid of them in other ways, such as by burning them or throwing them away; do not compost them. This is due to the possibility that they could spread the illness to your garden’s plants through the compost or re-infect your garden with the illness the following time you sow.
Second, make sure you comprehend your deceased crops entirely. This is due to the fact that some of them harbor unpleasant insects and diseases, and if you compost them directly, the pests could endure the composting process and return to the garden.
Third, comprehend your vegetable waste. Some dead plants, such as vegetable waste, can be exceedingly woody or gritty, which makes them difficult to breakdown. Last but not least, keep in mind that each dead plant you add to the compost bin is brown, dried, and dead. As a result, you will need to add more water as well as a source of nitrogen.
How are indoor plants composted?
The best method for feeding your houseplants is composting. Why? since it resembles how they obtain nourishment in the wild.
The majority of houseplants are native to tropical or subtropical regions. They receive the nutrition they need to flourish from the organic plant matter that naturally falls on them from above.
When you feed your indoor plants with compost, you are feeding them just how their natural habitats would do it.
As a result, you should once or twice a year add about an inch of compost to the top of the container holding your plant.
There’s no need to remove the plant from the pot or attempt to incorporate the compost into the soil unless the plant is ready for repotting. Placement of the compost at the surface is sufficient.
It will nourish the plant as you water and as the compost naturally continues to decompose.
Especially if you’ll only add compost once a year, add compost early in the spring. Around mid-summer, the second application might take place.
Which plants are prohibited from composting?
Tea and coffee grinds should both go in the compost bin. They generously supply plants with the nutrients nitrogen, phosphorus, and potassium that they require to grow. However, tea leaves and coffee grounds should only be composted if they have been removed from their bags or are bag-free.
Some coffee and tea products are packaged in bags made of nylon and other synthetic materials that won’t decompose in a compost pile. These materials also include plastic particles and chemicals that you don’t want to be in your morning brew, let alone your soil.
Unless you are positive that the tea or coffee bags are made of natural materials, like cotton or hemp, never compost tea or coffee bags.
How should dead houseplants be disposed of?
There are a few things to consider after you realize your plant isn’t reviving, whether you live in a rural location and have a compost bin or in a small studio in a big city and can only dump dead plants immediately in the garbage.
In general, it’s acceptable to dispose of dead plant material immediately in the garbage or compost pile. To prevent your other plants from becoming infected, it is advisable to take extra precautions if your plant is already a victim of a pest infestation.
You will require an additional bag or container to complete this. I’ve used recycled grocery bags, trash bags, and even paper bags that I’ve rolled over and stapled shut over the years.
Remove the diseased, dead plant from its container, and stuff it into the bag. Put it in the garbage can after closing it as closely as you can. Take out the garbage if you think that’s not enough. Remove it from your home. Pests like aphids and spider mites can easily make their way from the compost bin or open garbage to your other plants by crawling (or riding on a wind).
Can roots burn compost?
Your plants’ ability to grow will depend on the type of compost you use. Always use compost that has had time to fully decompose and take the right shape. Does unfinished compost harm your plants, though?
Compost that hasn’t been completed can harm plants. When applied to plants, this compost could not be suitable for use and could leach nutrients out of the soil as it finishes decomposing. If you wait a little bit longer, the compost will be ideal for your plants.
When using incomplete compost, there are a number of problems that can arise, including:
- Your plant’s roots may suffer from the compost’s deterioration.
- The plants lack that extra assistance since the nutrients are not ready to be shared.
- can require expensive resources to completely decompose, strangling the plant.
If at all possible, wait until the compost has fully decomposed before adding it to the garden. Starting the garden and letting the plants work the soil is OK. When the compost is ready, you can add it.
Below is further information along with a little video about the dos and don’ts of utilizing compost:
Is potting soil the same as compost?
How often have you visited a nursery with the intention of purchasing something to amend your soil (since that’s what they advise you to do before planting anything) and left feeling even more perplexed than when you entered?
Potting mixes, composts, soil conditioners, mulches, and manures are just a few of the many bags that appear to be available. The labels for mixes and blends include standard, premium, organic, natural, regular, certified, standardized, and so on. How can one tell what is what?
To find out the solution, I recently attended the briefing conference for the publication of the new Australian Standards on Compost AS4454 (2012). (I know, you’re right; I hear you.) I should really get a life. I arrived late due to traffic in Sydney and was surprised to see a room full of males wearing ties and collars. There were also very few women present, so my Veggie Lady polo shirt felt a little out of place. Who would have imagined composters wearing such fancy attire? Later, I discovered that the majority of them were managers or lab testers. However, as a composter and backyard grower, my curiosity was not quenched.
Compost vs Potting Mix
Early on, it was crucial to distinguish between a growing medium and a compost. Plant growth is the purpose of potting soil. Compost is designed to be incorporated into the soil, not utilized as a growing medium on its own. As a result, a compost will differ from a plant growth mix in terms of mineral balance and moisture holding capacity. Therefore, if you’re a home gardener, be sure to always combine bagged compost with other soil in the yard or with other potting mixes and materials when using it in container gardens because it can be too strong for your plants and actually hurt their growth.
The strict requirements for copper and zinc levels were actually loosened by the new standards because compost is intended to be integrated into background soil rather than being used alone as a growing medium. Unfortunately, we will continue to have high amounts of copper residues as long as we have copper water pipes. Under the revised criterion, higher concentrations of zinc and copper were considered acceptable when they were balanced off with other components or soil.
Classification
The particle size is the only criteria used to classify mulches, composts, and soil conditioners. Coarse, fine, or soil conditioner are the three definitions listed in decreasing order of size.
Therefore, a wide definition of mulch is coarse debris that make it easy for rainwater and irrigation water to filter through. Their carbon:nitrogen ratio will be higher and they are primarily woody in nature (you may now find that the C:N ratio figure is listed on the label of the bag). Mulches will take longer to decompose because they are designed to sit on top of the soil rather than be incorporated.
Fine ingredients make up composts, which are intended to be incorporated into the soil. It will have more readily available nitrogen to feed your plants because the carbon:nitrogen ratio will be lower.
Even smaller particles exist in a soil conditioner, which may provide your plants with more nourishment. It should be buried in the ground because it decomposes most quickly. More moisture will be retained in the soil as a result.
Maturity
Composts are further categorized according to their maturity. This informs you of the level of decomposition and whether the compost is still “hot” or totally rotted and prepared for use in any circumstance. By measuring the mixture’s heat, it establishes the level of biological activity there. The options include unpasteurized, composted, mature, or raw.
A single source of plant material (i.e., just one type of tree that has been chopped into sizeable pieces suitable for use as mulch) and the absence of any recognized pathogens are indicators of raw mulch. Composting has not occurred.
Utilizing composted materials may cause further decomposition even when they are still biologically active. It is described as being prepared for some commercial landscaping applications where established plants can resist additional material deterioration. A mature mix is required for some delicate or young plants.
Pasteurisation
It’s crucial to comprehend the necessity of pasteurization in the manufacture of compost for commercial use. Commercial operations rely on the collection of “resource from waste disposal systems, unlike the home compost, which can use fresh kitchen scraps and possibly free range home fowl manure. Before being collected, food leftovers can putrefy for days, and animal feces can contain diseases that are dangerous to people. Collection frequently takes place in highly unhygienic settings. Kerbside green waste plant debris may also carry pathogens that are fatal to plant life, such as phytophthora or myrtle rust, which have the ability to obliterate entire stands of native flora.
The process of pasteurization involves heating the materials to destroy any bacteria that could be hazardous to human health. The sad problem is that it kills both healthy and dangerous bacteria without discrimination. Compost in a home garden typically won’t reach the pasteurization temperature of 55 °C, preserving the beneficial microorganisms. The drawback of home composting is that not all dangerous diseases, weed seeds, or plant propagules will be eliminated.
A compost heap needs to attain a temperature of at least 55 °C for three days in order to pasteurize it effectively. This temperature is typically only attained with long windrows that are approximately 4.5 meters wide and 2 or 3 meters high. The heat given out makes it hot enough to make you want to remove your hand. While the outer 300mm layer surrounding the heap will remain colder, the pile’s center will heat up. Turning the heap is necessary for this reason. To ensure that all materials are pasteurized adequately, the exterior material is to be turned into the center of the heap. To guarantee that all of the material is pasteurized, commercial composters are obliged to turn the heap five times while maintaining temperatures over 55 °C for at least 15 days. By turning the heap to re-oxygenate it, you can feed more biological activity, which in turn produces heat as a byproduct. For the end user’s health and safety, pasteurization is crucial.
Labeling of chemical contaminants
If the producers want to disclose the outcomes of the new testing criteria for pollutants, the labeling guidelines increase the amount of information that is made available to us as consumers. When you first see the quantities of mercury, cadmium, and other heavy metals stated on your bag of compost, you might be horrified. Don’t let this deter you; it’s a positive thing. Today, producers of organic composts are required to test for them under the strictest conditions possible. Due to the greater expenses associated with these tests, many compost companies have skipped them, allowing composts with heavier metal concentrations than are presently allowed to pass inspection. You can be sure that heavy metals are under acceptable levels if test results meet requirements.
Some composts may contain other chemical components at concentrations that induce phytotoxicity (i.e. dangerous levels of nutrients that can cause plant death but no significant effect to human health). Standards compliance provides protection from such phytotoxicity.
Pesticide residue is also evaluated in addition to heavy metals. Compost that complies with Australian Standard AS4454 (2012) is guaranteed to contain minimal or no residues. Although first upsetting for the user, test reading listings actually give the producer’s assurance of transparency. This is preferable to the compost bag that hides the results of these new tests due to noncompliance with the norm that protects your health and safety.
Other listings on the label
You could anticipate seeing the pH level displayed on the label in accordance with the new regulations. By knowing your compost’s acidity or alkalinity, you may decide whether to apply it on plants that prefer acidity, such azaleas and camellias (who need a pH around 4).
You can make a decision knowing that it will benefit the environment by increasing carbon sequestration if organic carbon levels are also given.
Take home messages:
Never use compost or soil conditioners as a potting mix; always combine them with soil.
To demonstrate safety compliance, it is preferable to include chemical residues and heavy metal levels on the label rather than keeping them hidden from the consumer.
Turn your mix to rotate the components from the outside to the inside when composting at home.
There is a danger of pathogen reinfestation if your home compost is allowed to dry out before completing the breakdown process.