A Fertilizer Program for Thuja Green Giant – Part 3
Feeding your Thuja Green Giant is the best way to get maximum healthy growth. Along with supplying sufficient water, this is the best approach to take, and gives you outstanding results. In this mini-series of blogs we have looked in some detail at plant nutrients, so that you can make informed choices when you come to choose fertilizers, and see past the advertising spin. As promised last time, in this piece we will look at how to grow your plants organically. Using natural fertilizers in the garden has gone from being a slightly-suspect fringe activity a few decades ago, to main-stream gardening today. More and more gardeners are choosing organic sources for plant nutrients, because they want to be ‘green’ and environmentally responsible. Like all newer things, there are some common misconceptions around this, which we will try to sort out here, and give some solid guidance for this ethical choice.
Plants Don’t Need Vitamins
No matter how you choose to supply them – from a bag of manufactured chemicals, or from the chemicals released by natural products, your plants use exactly the same handful of minerals we described in the earlier parts of this series. For the plant, these are exactly the same elements, and there is no evidence that plants can tell the difference between where they came from. After careful analysis, it is also clear that plants do not need vitamins or any other complex nutrients – just those basic elements.
That doesn’t mean that organic gardening and green growing are wrong. Not at all. Their emphasis is on the soil, not on the plant. What does that mean? Well, chemical fertilizers are designed and developed to deliver the chemicals needed by your Thuja Green Giant directly to the plant. They dissolve in the water in the soil, and are then absorbed through the roots, and sometimes through the foliage. Organic growing aims to build a healthy soil, with high levels of nutrients derived from the soil and the organic material added to it, so that your plants always have a good supply of exactly what they need. This more natural way of gardening focuses on keeping the soil healthy, and good plant growth follows – naturally.
Take Care of Your Soil
When we add organic material to our soil, we feed the natural cycles of decomposition and recycling that nourish all the plants growing in that soil. Organic material is the key to green growing, although we can sometimes use more concentrated natural materials such as sea-weed extracts, as boosters. Organic material is anything that was once alive, so all the parts of plants, plus animal waste. It can be garden compost you make yourself from garden trimmings, kitchen waste, egg shells, grass clippings, leaves, and even old wool or cotton clothing. There are lots of places you can find out how to make your own compost, and it is a wonderful way to start gardening organically.
If you live in a more rural area, you may have farms around you keeping cows, sheep, pigs or chickens. All these animals produce manure, which on most farms is mixed with straw and left to rot. If you can get some well-rotted manure, this is an excellent source of organic material for your garden. Never put fresh manure around your plants – it will burn them and can even kill them. Garden centers often sell rotted manures in bags, which is a very convenient way to use them, especially for a smaller garden.
When added to soil, this organic material continues to decompose, helped by the multitudes of fungi and ‘good’ bacteria present in healthy soil. This decomposition releases the nitrogen we talked about in earlier blogs, that builds healthy, green foliage and shoots on your plants. Nitrogen gives you maximum elongation of the stems, and your Thuja hedge builds height quickly. The decomposing organic material feeds the good microbes, which then more effectively release nutrients from the soil itself. It also retains moisture, helping your plants stay healthy.
As organic material decomposes, it turns into a substance called humus. This long-lasting material remains in the soil for years, holding nutrients as they are released from the soil minerals, and preventing them escaping in drainage water. The levels of good plant nutrients rise over the years – you get naturally healthier soil, and so healthier plants growing in it.
The Plants Will Take Care of Themselves
To effectively grow your Thuja Green Giant plants organically, you should start before you even plant them, adding organic material to the soil when you prepare the planting area. Dig or roto-till a layer 2 to 4 inches deep into the planting site, mixing it well with the soil. This will release lots of valuable nutrients – more than enough to grow your plants well without needing any added fertilizers.
To give young plants a boost, before they have spread their roots out into the surrounding soil to get to the nutrients from the organic material, you can use an organic supplement. One of the best is liquid seaweed. This is made from harvested kelp, which is a sustainable resource. Harvesting it doesn’t damage the environment, so you can use it while completely respecting the natural world around us. This liquid is diluted with water, and poured onto the roots of your plants, providing nutrients that are immediately available, and adding some longer-lasting ones to the soil as well. Once your plants are well-established, you don’t need to use it anymore, but keep some around, because diluted to a suitable strength it is a great food for everything from vegetables to flowers and even house plants.
To maintain good levels of organic material in your soil, and so feed your plants for maximum growth and health, you need to replace material that decomposes. Periodically, you should add new material as a mulch over the soil. You don’t need to dig it in, just spread it beneath your plants in a layer 2 to 4 inches thick. Cover the root area, extending out beyond the edges of your plants by as much as a foot. Not only will this material inhibit weed growth, and retain moisture, but organic mulch gradually breaks down, and works its way into the soil. On sandy soil and in high-rainfall areas, you may need to do this every year or two. On heavier soils, and in drier areas, every 4 or 5 years is probably enough.
By taking care of your soil, keeping it rich and healthy, and full of good microbes, your plants will benefit. You will be growing them in a natural, sustainable fashion, recycling household and garden waste through composting, and putting animal waste to good use, keeping it out of our rivers and lakes. This green approach to growing your Thuja Green Giant plants is certainly the natural way to go.