What is the best compost for azaleas?

Asked By: Adaline El Kassimi | Last Updated: 2nd January, 2020
Category: home and garden landscaping
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Growing azaleas in pots
Use ericaceous compost, but try to find one with a loamy content and not too much peat, because loam-based composts hold nutrients and have a far better structure, making watering and feeding easier.

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Hereof, can I use multi purpose compost for azaleas?

Ericaceous compost is lime free for acid-loving (ie lime-hating) plants, such as camellias and rhododendrons, and pot plants, such as gardenias and azaleas. House-plant compost is multipurpose compost in small bags, especially for people who only need a little at a time.

Furthermore, what is the best compost for rhododendrons? John Innes ericaceous loam-based potting compost makes a good compost choice, generally providing easier management of watering and feeding. RHS research has found that soil-less potting media, including ericaceous peat-based and peat-free potting composts are suitable for rhododendron growing.

Also question is, do Azaleas need ericaceous compost?

Ericaceous compost is an acidic compost suited to growing lime-hating plants such as rhododendrons, azaleas, camellias, calluna and various other acid-loving plants.

What is the best time of year to plant azaleas?

The best time to plant azaleas is in late spring or early fall. Evergreen azaleas do well in partial shade with some wind protection. Deciduous varieties flower more profusely in full sun. Provide well-drained, humus-rich soil that is slightly acidic (pH 4.5–6).

39 Related Question Answers Found

How do I make my soil more acidic for azaleas?

Look for fertilizer containing ammonium nitrate, ammonium sulfate, or sulfur-coated urea. Both ammonium sulfate and sulfur-coated urea are good choices for making soil acidic, especially with azaleas. However, ammonium sulfate is strong and can easily burn plants if not used carefully.

Which multipurpose compost is best?

The Best Multi Purpose Compost Reviews
  • Arthur Bowers Multi-purpose Compost. CHECK PRICE ON AMAZON ->
  • Scotts Miracle Grow All Purpose Compost. CHECK PRICE ON AMAZON ->
  • Westland Jacks Magic Compost. CHECK PRICE ON AMAZON ->
  • Crowders Multi Purpose Compost with John Innes.
  • Ambassador Multi Purpose Compost.

What kind of compost is best for vegetable gardens?

While standard multi-purpose compost does contain some plant food, for the best results, we recommend choosing a specialist compost for growing vegetables. For example, Organic Vegetable Compost contains high levels of organic matter, so is suitable for vegetable patches.

Should I use peat free compost?

Nowadays, with more awareness around peat-bog depletion, and peat as a limited resource, many gardeners prefer to use peat-free composts. Peat-free composts are great for water retention but, for plants that require good drainage, adding a bit of grit and sharp sand to the mix will help support growth.

What do you add to soil to make it more acidic?


If it's loose, mix some organic material into the soil to acidify it, like compost, manure, or sphagnum peat moss. If the soil is compacted, mix elemental sulfur or iron sulfate into it to make it more acidic.

How long do unopened compost bags last?

Some can remain reasonably effective for up to 8 years, but with most, it's best to use them within a year or two.

Can ericaceous compost be used for all plants?

What is Ericaceous Compost? You will probably have heard of ericaceous compost in terms of what you can grow in it. It is an acidic compost, and suitable for growing rhododendrons, camellias, azaleas, heathers, and other plants that dislike alkaline soil, also known as lime-hating plants.

Do Azaleas need acidic soil?

The soil for rhododendrons and azaleas should be acid, somewhere between very strong and medium, that is, a pH of 4.5 to 5.5 or 6.0. To grow rhododendrons and azaleas in such alkaline or neutral soils, it is best to improve the soil by adding large quantities of organic matter.

Are used coffee grounds good for azaleas?

Place coffee grounds around the soil of your acid-loving plants such as azaleas, hydrangeas, lilies, roses, rhododendrons, holly, gardenias and many others. Coffee grounds increase acidity and nutrients in the soil. This is our favorite reason to use coffee grounds in your garden.

Should you Deadhead azaleas?


Deadheading is the removal of spent blossoms. Whether or not you should deadhead azaleas' flowers depends on the kind of azaleas. If you have deciduous azaleas, which are native to North America, you may deadhead them. The flowers of evergreen azaleas, native to Asia, typically are not deadheaded.

How often should you feed azaleas?

Fertilize azaleas lightly using a balanced fertilizer, such as a 10-10-10 ratio fertilizer, or an azalea-specific fertilizer with higher concentrations of nitrogen. It is better to fertilize very lightly two or three times during the spring and summer than to apply the entire year's fertilizer at once.

When should I feed my azaleas UK?

Feeding azaleas
Once flowering is over, feed plants with a slow release ericaceous plant food in March or April and then again in June - following the instructions.

Do hydrangeas need ericaceous feed?

Hydrangea care
Grow hydrangea plants in any rich fertile, moist soil. On light soils, it is a good idea to feed Hydrangeas with an ericaceous fertiliser .

Do hydrangeas need ericaceous soil?

Ericaceous compost is a type of compost that's perfect for cultivating acid-loving plants but with the large mophead hydrangeas, you use ericaceous compost to make the flowers bloom blue. There are some plants that prefer acidic compost and hydrangeas are one of them.

What do I feed azaleas?


A month after planting, begin feeding azaleas with Miracle-Gro® Water Soluble Azalea, Camellia, Rhododendron Plant Food. In addition to the main plant nutrients, this fertilizer also includes micronutrients such as iron, manganese, and zinc, which are vital for growing azaleas (and other acidic soil-loving plants).

Should you Deadhead azaleas UK?

Deadheading is not done for aesthetic purposes (although that is a nice side-effect), but because removing dead blooms prevents the plant from putting all its energy into forming seed heads. By deadheading each spring or summer, you ensure your azaleas put all their energy toward creating buds for next year's flowers.

How do you get azaleas to bloom again?

These plants will not rebloom without lots of bright sunlight. Keep the soil slightly moist and keep the humidity high with daily mistings, feed the plant once a week with a good commercial houseplant food, and pray a little. Your azalea should bloom for you every year for years to come.