How to Amend Raised Garden Bed Soil
Growing a productive and lush garden gives so much joy to anyone who grows it. However, we don’t always have enough space at home to plant the crops, herbs, and ornamentals that we like. Another issue you might face is that you don’t have the best ground to grow in, or maybe bending over in the garden to tend it is too hard on your back. The good news is you can always grow an excellent garden in raised beds, which can solve all of those issues. We’re going to talk about How to Amend Raised Garden Bed Soil before planting so you can have a fruitful garden!
This small-space gardening technique allows you to grow a productive garden in a confined space. It also lets you control various factors such as the health of your garden bed and the presence of weeds more easily than an in-ground garden.
Good quality soil makes all the difference when you’re growing a raised bed garden. If you want to grow healthy crops and lush ornamentals then you have to make sure that your bed is healthy.
With raised bed gardens, you can do this easily by amending the soil at certain times throughout the year. Today, we’ll be going through tips on how to properly amend your raised bed so your plants can grow in a rich and healthy environment every time. Let’s get started!
What is Good Garden Soil?
You often hear experienced gardeners saying you should feed the bed and not the plant. This is because the best way to grow healthy plants is to have them growing in soil that’s full of vitality.
You know it’s important to know how to amend raised bed garden soil, but, how do you know if your garden is healthy? Fortunately, there are telltale signs that indicate if it is right for growing crops. Good quality soil should be loose and it should have the right texture. It should contain the right nutrients like nitrogen, potassium, and phosphorus. Finally, it should have a neutral pH to encourage plant growth.
The good news is that if you’re growing a raised bed garden, you can control the quality of soil your plants grow in. This can be done by amending it.
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What Are Amendments?
Amendments are substances you add to your garden to increase its nutrient content or to improve the structure. Some examples of amendments include vermiculite, or worm castings, compost, coir, green sand, grass clippings, cornmeal, alfalfa meal, lava sand, straw, and kelp meal.
Using these amendments can correct the soil and make it more appropriate for growing plants. For example, if your raised bed is drying out too fast, you can add materials that help retain moisture, like compost.
Amending Your Raised Bed in the Fall
Fall is an important time to be sure you know how to amend raised garden bed soil. Your raised bed garden will lay dormant from fall to winter so this is the best time to enrich it with amendments. This is the time where you can prepare for your next set of crops so it’ll be easier to do things by the time spring rolls around.
Clear Up Finishing Plants
The first thing you should do in the fall is to pull out any dead or dying plants from the previous season and remove any debris you may find in your raised bed. Old plants can harbor diseases, pests, and fungi which can ravage your garden if left unchecked. If these old plants are disease-free, you can bury them int he bed and as they decompose they will add organic matter.
At this point, you can also remove any renegade weeds that may have found their way into your raised bed garden so they don’t wreak havoc by the time the next season comes. You can add these into your compost pile as well.
Fall is a great time to add compost to the soil since the period of inactivity allows this amendment to work its way through the bed and do its magic. You can add un-aged kitchen scraps which can decompose throughout the season, too.
You can also add fall yard wastes like chopped leaves and dried out grass clippings (green grass clippings can contain weed seeds so you’ll want to make sure all of that has died off) to enrich the bed.
Improve the Drainage
As the soil in your raised bed lays dormant for months, it can be prone to compaction which affects the drainage of the soil. Add amendments like vermiculite or pearlite to help promote proper soil drainage.
Cover the Soil with Mulch or a Sheet of Plastic
It’s also great practice to cover your raised bed with mulch in the fall and throughout winter. The cover helps retain warmth and also encourages the soil amendments you’ve added to breakdown more efficiently. It also prevents weeds from growing.
Use our Mulch Calculator to find out how much you’ll need for your next project:
Plant Cover Crops
When looking into how to amend raised garden bed soil you can start in the fall at the end of the season to prepare for the next season. Cover crops restore the fertility of our raised bed soil and fall is a great time to plant them. These help prevent soil erosion, break up compacted areas and increase levels of organic matter in garden beds. Cover crops also add nutrients like nitrogen. Furthermore, cover crops help prevent soil compacting due to heavy winter rains.
You can grow legumes like clovers, alfalfa, and peas as cover crops. Alternatively, you can also grow grasses like oats, rye, and buckwheat.
Don’t Till Your Garden
Resist the urge to turn the soil over in the fall. Let the organisms in the soil work their magic and aerate the soil for your throughout winter. Wait until spring comes around to till the soil in your raised bed garden.
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Amending Your Raised Bed Soil in the Spring
By the time spring rolls around, your efforts at the beginning of fall and the effect of the soil amendments throughout winter will make your job easier. However, there are still some preparations you need to do before you can start planting your next set of crops.
When you begin your gardening season, add lots of organic material like compost or aged manure on top of the soil.
This is also the time to till the soil in your raised bed so it can be aerated. Cover crops may also be turned over at this point so they can start delivering their nutrients into the soil.
If you need to amend the soil of a raised bed in the spring and didn’t do any prep in the fall, here’s how to amend raised bed garden soil: you can add equal amounts perlite, compost, and peat moss and mix it in as deeply with the existing soil as possible, either with a shovel or a tiller. Once that is done you can top it all off with green sand – which has potash in it and will condition the soil, help to keep it loose, and well drained – mix a couple of handfuls in the top few inches. Water it all well, wait a week or two and then it will be ready for planting.
Raised beds are an excellent choice for gardeners with limited yard space. I hope the tips above will help you improve the quality of the soil you have so you can grow a lush and vital garden by the time the next gardening season comes around!
Do you have any more questions about how to amend raised garden bed soil? If so, comment below and I will do my best to help.
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