When Planting Large Trees, How Often and How Often Should They Be Watered?

Large trees are an excellent way to quickly develop a new garden. Large trees are a key component of good landscaping, as they can turn an uninviting, flat area into a welcoming, shady nook. However, when planting trees of this scale, extra attention is needed to grow them, not only in the first few weeks after planting, but for the first three years.
It takes time for large trees to re-establish their root systems. Their roots can be squeezed into a small space whether they are cultivated in containers or transplanted from elsewhere. The digging would have removed a large portion of the root system of transplanted trees. Your tree will extend its roots to cover a large area around it as it grows, as well as sending roots deeper into the soil. A mature tree would have a complex network of shallow roots that reach beyond the drip line of its branches.For further information regarding this,more info here.
It is critical to provide your tree with the proper level of frequent watering during its first few years, and in most cases, use mulch to retain water, particularly during the summer months, to ensure its survival. Your lovely tree will easily perish if the roots dry out in the early stages. It will thrive and grow if properly watered.
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The amount of water and frequency with which newly planted large trees are watered can differ slightly depending on a number of factors, including the tree’s size (as calculated by the root ball), the soil, and the season. The following is a general outline. If in doubt, seek guidance from a large tree nursery that is familiar with your tree’s species, environment, and soil conditions.
Water quantity – Calculate the amount of water required based on the root ball’s size. Typically, you’ll need to water the root ball 5 percent to 8% of its volume each time. So, for a 1000 litre root ball, 50 to 80 litres of water will be needed. It can require less water in heavy clay soils with low drainage to prevent drowning the roots. A little more may be needed in sandy, well-drained soils. Water slowly and near to the trunk in both situations so that the water soaks into the root ball rather than draining into the surrounding in-fill soil.
Watering frequency – Water well-drained soils three days a week during the first year of growth in the summer and twice a week in the cooler months. If there is a lot of rain, watering should not be necessary. Heavy clay soils would typically only need watering twice a week in the summer and once a week the rest of the year, but check the soil under the surface to see whether it needs more or less. If there is some evidence of water near the roots, you can water less often, as this will cause the roots to rot.
The trees will still need daily watering in the second and third years, but the amount of water provided should double because the tree root system will have expanded. Watering can be cut in half during the fourth and fifth years, but it should still be done, particularly during the summer.
So keep in mind that planting big trees isn’t a fast fix for a barren yard. To help them grow and become even more beautiful, they will need daily care and maintenance.