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How To Use Worm Castings To Fertilize Hanging Baskets – And Why It Works Wonders!

You might just be amazed to find out how using worm castings to fertilize your hanging baskets can give you some of the healthiest, most beautiful flowering baskets around!

Worm castings have been a favorite go-to fertilizer and soil additive on our little farm for years. And for one simple and solid reason – they work wonders!

Not only do they successfully power our vegetables plants, annuals and perennials in our garden and flowerbeds, they also happen to be our secret ingredient to growing hanging baskets that overflow with blooms and foliage.

worm castings  - million bells hanging baskets
Worm castings act as the perfect slow release fertilizer for hanging baskets. They supply a steady stream of nutrients to keep baskets in heavy blooms all summer long – all without growing them so fast they outgrow their basket.

Why Worm Castings Work

So why are worm castings perfect for fertilizing hanging baskets? The answer lies not only with the mix of nutrients within the castings, but how easily those nutrients are absorbed by plants.

Worm castings are the dried remnants of worm manure. As worms eat there way through the soil, they consume a myriad of organic materials. Their digestive system breaks down that organic material into an ultra-fine form as it exits as manure.

Just as with animal manure, worm castings contain all types of nutrients that are critical food for plant life, including nitrogen, potassium and phosphorus.

But here is the real kicker, because they are broken down into an ultra fine form, they are one of the easiest of all sources of nutrients for plants to absorb. Even more, those nutrients are balanced, meaning they won’t burn or overcharge plants like other manures or fertilizers can do.

pure worm castings - fertilizer
Worm castings contain a whole host of valuable nutrients that can power plants. Even better, worm castings can be used as a soil additive, a dry release fertilizer, or made into a powerful liquid tea fertilizer.

Worm castings in essence, are the ideal low & slow fertilizer for hanging baskets. They give annual plants just the right amount of energy to thrive, without growing them too quickly. That can be a big plus to keep plants thriving in baskets all summer long.

How To Use Worm Castings For Great Hanging Baskets

Whether you plant your own hanging baskets or purchase them from your local greenhouse or nursery, worm castings can work magic on your plants.

We use worm castings to power our hanging baskets in three distinct ways. First, when we plant them, we add castings into the soil to provide a great source of slow-release nutrients.

Secondly, we use worm castings periodically throughout the season as a topical mulch & fertilizer. Finally, we create an amazingly powerful liquid tea from the castings that we use on a regular basis to provide perfect power for strong blooms and growth.

Together, all three work to keep hanging baskets strong and healthy from early spring right up until late fall. All from one simple bag of worm castings! Product Link : Pure Worm Castings

And don’t worry, even if you purchase your plants and can’t use the castings in the actual potting soil, the other two methods are still incredible at giving you beautiful baskets!

rich potting soil
Worm castings are excellent for mixing into your potting soil before planting, or for putting on top of your soil during the growing season.

With that in mind, here is an in-depth look at how each method for using worm castings can work to power your hanging baskets to new heights this year.

3 Ways To Fertilize Hanging Baskets With Worm Castings

Worm Castings In The Potting Soil

If you plant your own hanging baskets or containers, using worm castings as an additive to your potting soil is a must. Not only will it help to keep your potting soil lightweight, it also fills it with valuable energy.

In addition to containing the traditional “BIG 3” of fertilizing power (Nitorgen, Potassium & Phosphorous), castings also include traces of copper, magnesium, manganese, carbon, cobalt, iron, magnesium and calcium. All of which also help play an important role in plant health and vitality.

If that wasn’t enough, worm castings are also able to absorb multiple times their body weight in moisture. That means the roots of your plants have a better chance of having the moisture they need, when they need it.

Worm Castings As A Mulch / Dressing

Even if you don’t plant your own baskets, you can still use worm castings on top of your potting soil to help provide them with low and slow power.

Listen To Our Podcast On Worm Castings Below!

Each month, we apply 1/2 cup to 3/4 cup of worm castings to the top of our hanging baskets . We do this as a top dressing/mulch. The top coat of castings act as an incredible slow-release fertilizer every time we water.

The nutrients within the castings leach into the soil as the water filters through. In the process, nutrients are delivered directly to the roots of the plant as they soak up the water.

This low and slow fertilizing process is perfect for hanging baskets. It provides them with a steady diet of easy-to-consume minerals. All without the danger of overpowering plants.

Worm Casting Tea

The third and final way to fertilize your hanging basket plants with worm castings is by watering your plants every week or two with a dose of worm casting tea.

You can create worm casting tea by soaking or steeping worm castings in water. As the castings soak, they leach all of their powerful nutrients directly into the water. The process creates a powerful yet highly balanced liquid fertilizer.

Creating worm casting tea is a breeze. Just mix one cup of castings with one gallon of water. Shake it or stir it up, and let it steep for 24 to 48 hours. (If you can wait, allowing the castings a second day to absorb the nutrients makes it all the better.)

fertilizing hanging baskets
Worm castings are wonderful when it comes to fertilizing cucumbers. Not only can you make a great organic liquid tea, you can place a half cup of castings at the base of each plant as a slow release fertilizer as well.

Once or twice each day, give the castings a stir or shake to agitate the castings. This will help the castings to release even more of their power into the water. Then simply strain the castings out (they are great for the compost pile) and you are ready to use!

How To Use

To use, simply water your plants as normal with the solution – leaves and all. The nutrients will absorb both through the leaves and roots. As with any fertilizing, it is best to do this in the early morning or late evening. This helps to avoid having any water droplets burn the foliage with the hot sun’s rays.

We use about a quarter gallon of worm casting tea on each plant. For our plants, we have found keeping them on a regular 10 day cycle of casting tea works wonders for keeping them healthy and blooming strong.

Here is to using castings in and on your hanging baskets this year. And to having the best hanging baskets on the block! Happy gardening – Jim and Mary.

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