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The TerraCottem soil conditioners are very potent: only a small quantity is required when planting trees and shrubs.
Only 1.5 kg per m3 growing medium or soil taken from plant hole
= 1.5 gram per litre soil
So depending on the size of the planting hole - i.e. the size of the tree - you can calculate the required amount of TerraCottem soil conditioner:
|Diam. root ball
|TC rate (*)|
|10||20||20||10||4||5 g||= 1 teaspoon|
|15||30||30||15||13.5||20 g||= 1 spoon|
|20||40||40||20||32||50 g||= 1 lid of 750g jar|
|25||50||50||25||62.5||100 g||= 2 lids|
|35||70||70||35||171.5||250 g||The 5kg and 10kg tubs
include a measuring cup
|Whenever possible, spread another half of the calculated TC rate on the bottom of the planthole and mix well.|
The rule of thumb? The diameter of your hole must be equal to 2 or 3 times the diameter of the root ball.
And how deep?
Place your tree as deep as the height of the bare root or the container your tree was in. This way, the top of the root ball is parallel to the ground level.
The volume can be calculated using the formula:
V = L x B x D : 1000
TC rate = V x 1.5
Keep small amount of soil from the hole apart from the rest. Add TerraCottem soil conditioner (TC) to the soil taken from the hole at the calculated rate and mix as homogeneously as possible.
Diameter root ball: 40 cms
Diameter root ball: 1,2 m
Place the tree or shrub in the plant hole.
Make sure not to fill higher than the top of the root ball. Create a concave shape to trap available water.
The above-mentioned rates are applicable in the majority of cases. However they may vary according to the climate, type of soil and recommendations of the project manager, architect or consultant. For recommended methods and specific rates contact us without obligations.