Is Trex Safe For Raised Garden Beds

The definition of soil nowadays, especially in terms of gardening, has become so broad. Depending on your gardening setup and need, determining the right type (or mixture) can be a challenge. And if you are one of those folks who have always been a fan of raised bed or container gardening or just planning to try it, raised bed soil is your best comrade for such a purpose.

According to Gary Pilarchik of The Rusted Garden channel, raised bed soil sits between garden soil and potting mix. It offers the right set of recipes, nutrients, and qualities of soil for raised bed gardening. It is also perfect for container gardening and can be directly poured into a raised bed situated on the soil.

Raised bed soil sits between garden soil and potting mix.

Gary Pilarchik

The Rusted Garden

Raised bed soil provides the best drainage for plants in a raised bed. Gardeners often have better experience in keeping the soil loose. It is important, especially that too much water in a container or raised bed can affect the quality of the soil and the growth of plants. This also translates to improved airflow in the soil and nutrient delivery which are a necessity among the roots of plants. The pH of this kind of soil is also balanced which is between 5.8 and 7.5. This range is perfect enough to foster vegetables and flowers in an enclosed setting.

Despite having this "ready-to-use" soil, you can still be creative and use it to make your own personal mixture. As a matter of fact, it is best to add more nutrients to bagged soil like this to assure the survival and prosperity of plants. This is very much needed, especially if you are planning to grow vegetables in a raised bed. They need a lot of nutrients and can easily deplete the nutrients in the soil, so the application of fertilizer to the soil after a couple of weeks is suggested.

Nonetheless, most raised bed soil contains numerous components which are beneficial already. Each brand offers different blends of ingredients, of course. For instance, Black Gold SUGRBG16QT comes with earthworm castings, perlite, pumice, and organic fertilizers.

These additives play a vital role in the growth of plants. Besides affecting the moisture and aeration in the soil, they also influence the fertility of plants. Some of these additives that you can find in raised bed soil include perlite, mushroom compost, calcium carbonate, hay, vermiculite, worm castings, rice hulls, lava cinders, coconut coir, manure, leaves, forest products, azomite, sphagnum peat moss, organic fertilizers, and a lot more.

With all that, is there a perfect mixture of raised bed soil? Well, it depends on a lot of factors including the plant you are planning to cultivate. Different plants have different needs for nutrients, so it is all about finding the best raised bed soil that will suit your gardening needs.

To help you get a better view of the best raised bed soil available and their major contents and nutritional benefits for plants, we rounded up the five best options for you. Together with some personal insights, we highlighted their best qualities which can guide you in selecting which one you should purchase.

Best Raised Bed Soil Comparison & Rating

1. FoxFarm Ocean Forest FX14000 Organic Soil

FoxFarm Ocean Forest FX14000 -1.5 Cubic Foot Organic Potting Soil

Brand	FoxFarm
Content Amount	38.6 quarts
Fertility Additives	earthworm castings, bat guano, and Pacific Northwest sea-going fish and crab meal
Aeration and Moisture Additives	forest humus, sandy loam, and sphagnum peat moss

Comes with a total of 38.6 quarts of soil.
The pH adjusted (6.3 to 6.8).
Uses earthworm castings and bat guano as one of the active ingredients.
Ready to be used right after opening the pack.
Great texture and consistency.

Slightly pricey but offers the best set of ingredients and great amount of soil.

FoxFarm Ocean Forest FX14000 Organic Soil focuses on the branch growth of plants. This explains why it contains a lot of ingredients that aim to provide the very best kind of nutrients for plant growth. This includes earthworm castings, which are great for moisture retention and fertility; bat guano, a compost activator and natural fungicide controlling nematodes in the soil; and Pacific Northwest sea-going fish and crab meal, which are natural fertilizers.

Furthermore, this lets plants obtain a continuous healthy growth habit, whether they are in pots or raised bed gardens. This is possible through the right level of pH that allows optimum fertilizer uptake.

Its texture is somewhat light and aerated, thanks to forest humus, sandy loam, and sphagnum peat moss included in the mix. That said, great breathing process for plant roots and excellent water drainage. Most of all, it offers complete nutrients in a single bag!

2. Black Gold SUGRBG16QT Organic Soil

Black Gold SUGRBG16QT 1402040.Q16U Qt U 16 Quart All Organic Potting Soil

Brand	Black Gold
Content Amount	16 quarts
Fertility Additives	compost
Aeration and Moisture Additives	sphagnum peat moss, perlite, pumice, and finely ground forest products

Ideal for container-grown flowers, herbs, and vegetables.
Comes in a 16-quart bag.
Combines the benefits of organic matter, microbes, and nutrients.
Clean and fresh soil smell; no chemical scent at all.
Listed and reviewed by the Organic Materials Review Institute (OMRI).
Holds moisture really well.

It can somehow attract bugs, especially under specific temperatures favorable for insects.

One of the most versatile soils on the list is this Black Gold SUGRBG16QT. It can be used both for vegetables situated in a raised bed and can also function as potting soil. Besides being considered organic by OMRI, it comes with various components that assure a long-lasting source of nutrients for plants.

This soil hits two birds with one stone by using the right set of ingredients that will promote nutrients in plants and proper drainage in the soil. Instead of woody material that is often tagged as a low source of nutrients, it is using organic matter and drainage enhancers such as sphagnum peat moss, compost, coarse perlite, pumice, and finely ground forest products.

There are also screened worm castings in the soil which is known for their biological benefits. This includes the minerals and micronutrients that edible plants need the most. Most of all, unlike other raised bed soil options, it lasts longer which could be more than a year or two.

3. FoxFarm FX14054 Happy Frog Soil

FoxFarm FX14054 Happy Frog Potting Soil, 12 Quart

Brand	FoxFarm
Content Amount	12 quarts
Fertility Additives	fertilizer
Aeration and Moisture Additives	aged forest products, sphagnum peat moss, and perlite

Adjusted pH for the specific needs of plants.
Light in texture and great aeration.
An all-purpose soil that fits different gardening needs.
Good for both indoor and outdoor containers or raised beds.
Contains 12 quarts of premium soil.

Expensive for a 12-quart of soil. Nonetheless, nutrition-packed and undoubtedly quality soil.

FoxFarm FX14054 Happy Frog Soil secures the growth of plants in a contained setting, which makes it one of the best options for delicate indoor plants. It has all the special ingredients it needs that serve as catalysts for plant growth which include 50-60% aged forest products, sphagnum peat moss, perlite, and fertilizer. The mixture of these additives results in excellent drainage since the aged forest products and sphagnum peat moss hold water really well while the perlite improves drainage.

It is also backed with nitrogen, phosphate, calcium, and more which are all obtained from earthworm castings, bat guano, oyster shell, and dolomite lime. Nonetheless, what we really loved about it during our inspection is the integration of a mix of microbes with mycorrhizal fungi and sediment. This is responsible for steady root development and expansion. Therefore, this will result in the 100% growth and survival of plants.

4. Miracle-Gro Raised Bed Soil

Miracle-Gro Raised Bed Soil, 1.5 cu. ft.

Brand	Miracle-Gro
Content Amount	1.5 cubic feet
Fertility Additives	alfalfa meal, bone meal, kelp meal, earthworm castings, plant material compost, and poultry manure
Aeration and Moisture Additives	processed forest products, sphagnum peat moss, softwood bark, and processed softwood bark

Boasts of 100 percent organic mix formula.
Pre-mixed blend that is ready to use.
Great drainage property.
Organic Materials Review Institute-listed, giving you further assurance of its efficiency.
No mixing required.

It delivers less apparent effects on other plants. Nonetheless, other factors can contribute to its effect.
Only ideal up to 3 months.

With 1.5 cubic feet of soil, it can cover the entire raised bed soil you have. With this, you're going to save more than buying regular soil and other mixes needed. You can use it for any kind of vegetables, fruits, flowers, and herbs.

You can expect faster growth earlier than you would expect and it has just the right amount of consistency: not too tight and not too loose. Most of all, no harsh smell compared to other brands out there. There is almost no need for additional fertilizer, but if you want optimum results, you can always opt for organic fertilizers and manure.

It also has a lot of nutrients and can deliver continuous growth in plants for up to 3 months. It contains processed forest products, alfalfa meal, sphagnum peat moss, bone meal, kelp meal, earthworm castings, softwood bark, plant material compost, processed softwood bark, poultry manure, and processed wood products. However, it is important to note that the inclusion of the ingredients mentioned depends on the state (California, New Hampshire, Texas, and Georgia) where the product is purchased or manufactured.

Overall, everything about it is well-balanced: water retention, aeration, and drainage. When watered, the soil remained moist, yet not too compact to allow easy cultivation. During observation, it also didn't show any presence of weed growth.

5. Miracle-Gro Expand 'n Gro Planting Mix

Miracle-Gro Expand 'n Gro Concentrated Planting Mix 0.33 Cu Ft

Brand	Miracle-Gro
Content Amount	16 quarts
Fertility Additives	poultry litter
Aeration and Moisture Additives	compressed coir pith

Can serve as a good substitute for garden soil or potting mix.
Fits in-ground and container gardening.
Contains compressed coir and fertilizer.
Produces 90 percent more air space for plant roots.
Can hold 50 percent more water than the regular potting soil in the market.
Comes in a 16-quart bag.

Only ideal for a maximum of six months.
Needs stirring and takes 10 minutes for the soil to expand.

This is an outstanding soil that is comparatively better than most soil available. Not only it can retain water at just the right rate, but it can also expand three times when watered appropriately. This allows better aeration for roots due to the abundant air space it creates during the expansion process. This also allows it to grow plants three times bigger than the expected size. It also contains compressed coir pith and poultry litter, assuring great drainage and nutrient supply for plants.

Moreover, although this soil requires mixing and watering before putting your plants in, the process is very simple and straightforward. Most of all, you'll get a favorable result and it can keep on nourishing your plants for almost half a year. That said, if you have a raised bed garden in your yard or a vertical garden inside the house, better get this. This will certainly help your plants strive in whatever kind of environment.