Archive for October, 2017

Hedges & Pollution

Recently we have been featured in an article by the evening standard on pollution within the city and how hedging can help tackle the problem of air pollution. The harmful impact of urban air pollution could be combated by strategically placing low hedges along roads in a built-up environment of cities instead of taller trees, a new study has found. Hedges are often better than trees at soaking up air pollution, with their lower growth heights they can trap toxins from an exhaust pipe level. Scientists and professors have said that councils should consider planting hedging between pedestrians and the streets, if the pavement size permits. Despite their potential to improve air quality in the most polluted parts of towns, hedges are more commonly found in the suburbs rather than the city.

The use of trees in helping pollution levels is still vast and should not be dismissed, more a continuation of planting, however it is said that hedging has been neglected and their benefits overlooked.

 

“Dr Kumar, of Surrey University, told BBC News: “The big thing about hedges is that they are right down at tailpipe level.

“The emissions from vehicles starts to dilute very quickly as you move away from the road – so any hedge that acts as a barrier slowing down the airflow and catching pollutants on the leaves is going to offer people in homes better protection.”” Taken from BBC news article.

The main areas affected by pollution and in need of new ways to eliminate toxins are mainly in the city,

“Urban air quality continues to be a primary health concern as most of the world’s population currently lives in urban areas (54% in 2014), and percentage is projected to rise to 66% by 2050; this is coupled with the fact that one of the main global sources of air pollution in cities is traffic emissions.” Taken from The Tree Council

Professor Kumar said scientists were currently investigating which species of hedge plant made the best pollution absorbent. At Hedges Direct we would suggest species like Western Red Cedar due to its dense leaves. Not only will it help the environment, it is also very attractive when it’s fully matured with its vibrant fronds that are mid-dark green. Other species like Yew, Portuguese Laurel and Lonicera Nitdia would be a valuable choice also.

How to plant a bare root hedge

Bare Root hedging offers a great, cost-effective solution to hedging at home. Generally, bare root plants are deciduous so they can seem slightly disappointing when they arrive as the plants will be dormant. However, what you really get is a substantial root system and a decent amount of stem (depending on the age/height) and side shoots. Once you plant your bare roots and spring arrives you will soon see your plants flourish and realise you have made a fantastic investment!

Bare root hedging is one of the most cost effective methods in hedging planting. They cost less to grow and once they are planted they are left in the fields for years (until ready for purchase) instead of being re-potted year on year. As this root type is only available when the plants are completely dormant, from November to late April/early May, they can only be delivered and planted during this period (exact dates of the season depend on the weather each year). Please watch our video on how to plant a bare root hedge, we have used Yew hedging to demonstrate.

It is important to note that there is a failure rate attached to bare root hedging plants – 10% for most species. However, we find that when planted with Rootgrow all plants establish better, with a low failure rate.

Rootgrow contains Mycorrhizal fungi which is a living organism, essential to all plant root development, which enables plants to extract nutrients and absorb moisture more efficiently – it’s like Yakult for plants! Rootgrow will improve your hedges disease and drought resistance, soil condition, fruit and flower production and the shock caused by transplanting, planting with Rootgrow will result in triple the growth rate compared to none treated plants. Hedging planted with Rootgrow will experience better, earlier growth with fewer losses. Only one treatment of Rootgrow is needed to support the plant for its entire lifetime. For more information on the how to use Rootgrow, please watch the video on how to use Rootgrow Gel, which is what we used in our demonstration video.