Rhododendron feeding is one of the most popular gardening topics among gardeners. There are many reasons why rhododendron feeding is so popular. One reason could be because it’s easy to do, and another reason might be because it provides great results! However, there are other factors that make rhododendron feeding difficult or even impossible.
There are several types of fertilizer available for rhododendrons. Some of them are not very effective at all, while others may provide some benefits but they’re too expensive.
Some people prefer using commercial fertilizers which contain chemicals such as copper sulfate, potassium permanganate, calcium carbonate and magnesium oxide. These fertilizers have been proven to work well for rhododendron plants.
They’re usually sold in bags and require a little bit of effort to apply.
Another type of fertilizer is organic fertilizers. Organic fertilizers are made from natural ingredients like composted animal manure, fruit peels, leaf mold, tree bark and other plant parts.
These products are often cheaper than their chemical counterparts but they don’t always provide the same results as the conventional varieties. You’ll need to experiment with different brands before finding out which one works best for your needs!
Rhododendron plants also benefit from organic soil amendments. Soil amendments work by improving the soil in which your plants grow.
This can be done by supplying nutrients, making the soil lighter or aerating the soil to allow better water penetration. Compost, leaf mold and rotten wood ash all make great soil amendments for your rhododendrons.
Another way to fertilize rhododendrons is from the ground up! In other words, the nutrients can be supplied to your plants through the water.
Seaweed, fish emulsion and liquid kelp are a few of the types of fertilizers that can be used in this way. These organic fertilizers are broken down slowly and provide nutrients over a period of time, giving your plants a steady source of nourishment rather than a quick burst.
It’s very important that you take care when feeding your rhododendrons. Make sure to follow all instructions and only apply a small amount of fertilizer the first time, then observe how your plants respond before applying more.
When in doubt, it’s better to underfeed rather than overfeed your rhododendrons – too much fertilizer can damage or even kill your beautiful bushes!
Just because some fertilizers aren’t good for rhododendrons doesn’t mean that they’re not good for anything. There are many types of fertilizer that should never come in contact with your rhododendron plants.
For example, fertilizers that contain high levels of nitrogen (a primary element for plant growth) should be avoided, since they can cause damage or even death to your rhodies. If you want to be sure you’re buying a good fertilizer, look for ones that are high in phosphorus and potassium!
Another common type of fertilizer that should be avoided is explosive fertilizers. These types contain substances that can burn plants if they come into contact with them.
They should be avoided at all costs!
Don’t be afraid to ask questions! When buying your fertilizer, it’s always a good idea to ask the clerk which one is best for your type of plant.
They should be able to point you in the right direction!
Last but not least, always remember to water your rhododendrons. Even if you’ve fertilized them, you still need to provide them with water or else they will die.
The easiest way to do this is to use a spray bottle to evenly distribute water on the soil. If you can’t get to a store to buy some water, don’t fret! Rainwater and even melted snow make great alternatives that you can use on your bushes. So as long as you keep your bushes hydrated, they should grow and bloom beautifully all spring and summer!
As always, be careful when working with fertilizer and other chemicals. Make sure to wash off your hands after applying any chemicals or you might poison yourself!
Best of luck with your rhododendron!
Sources & references used in this article:
Rhododendrons of the World. by DG Leach – Rhododendrons of the World., 1962 – cabdirect.org
The genus Rhododendron: its classification and synonymy. by D Chamberlain, R Hyam, G Argent, G Fairweather… – 1996 – cabdirect.org
Growth response of three containerized woody plant taxa to varying low phosphorus fertilizer concentrations by JH Shreckhise, JS Owen, AX Niemiera – HortScience, 2018 – journals.ashs.org
The red list of Rhododendrons. by D Gibbs, D Chamberlain, G Argent – 2011 – cabdirect.org
Orthogonal test of fertilizer and cultivation management of Rhododendron hybridum in greenhouses. by JL Niu, XF Liu, MX Liu – Xinjiang Agricultural Sciences, 2011 – cabdirect.org