THE MODERN MINT BLOG
Flooding (Part 2)
To prevent future flooding there is a need to manage the land in a different way. The dredging of rivers will do nothing but speed up the flow of water to ‘pinch points’ further upstream. The use of sandbags is a measure provided too late, when normal life has been halted by water flowing into homes.
Natural Flood Management (or NFM’s) must now be considered a major part of flood prevention. The critical factor of NFM measures? The planting of trees to slow down running water.
By planting trees near headwaters they act as a buffer to hold up rainwater runoff. Planting woodlands near streams works in exactly the same way, slowing down the water. Debris from the trees can also fall into the river, creating dams that hold back excess water. These ‘timber flow interventions’ can even be man-made, by laying fallen tree trunks into the stream. These are far cheaper measures than building bigger walls to protect towns.
Trees also help water percolate into the soil (60 times faster in some research) although infiltration will be reduced if the land is already saturated. If this is the case, what options do we have then? Short-term, we are back to the sandbags. Long-term though, we lessen rainwater runoff rates from poorly managed land. How do we do that?
Treat our soil better.
We could stop winter sowing of crops. This leaves the soil bare for months. With nothing to bind it together it turns into mud when wet and leads to land erosion. The sowing of a winter ground cover would benefit the soil as much as preventing flood damage.
Stop compacting the soil with heavy machinery and too many animals walking over it. Compacted land works the same as any impermeable surface – it cannot take the water, so the water must just run off and down streets and into homes.
Add organic matter to the soils. They will hold more water, yet won’t become waterlogged.
Is there anything else we can do?
Don’t build houses on floodplains. This may alleviate housing shortages in the short-term, giving whichever Government bragging rights over what they have achieved while in power, but the problems will arrive later on… and money will still have to be spent on rebuilding, on rehousing, on healthcare for people who are having to live with stagnant water around their ankles. The costs will always catch up with us in one form or another.
Concrete and dredging are all very well – but we need to slow water down, and give it places to sit and be held when it does become to much.
We need to plant trees, we need to cherish and protect our floodplains, and we need to look after our soil.
More ways to manage the landscape can be found in these books… get them now, you will learn a huge amount!
Michael Gibson, New York Topiary Art!
In the New York Times earlier this year was a lovely interview with Michael Gibson, who makes topiary and gardens in New York. The article is here but you may not have access… however, search the internet, find it and have a read. It is great! His philosophy of pruning is especially worth it… Sacred geometry in topiary? Yes please! What a phrase! I think (and speak) of balance, of major and minor, of leaf volume… but sacred geometry might well make it into my topiary teaching lexicon! And the idea of directional trimming? I realise I do this, but …
Topiary Library
I do a lot of teaching topiary. I had the opportunity from my mentor, Charlotte Molesworth, to work on her garden and experiment and test techniques and generally try making shapes without the worry of failure, or being fired, or being sued and run out of business for getting it wrong. This opportunity was essential (along with Charlotte’s insistance that pruning standards had to be high!) in becoming better at topiary. When I look around the world at our cultural vitamins, what we see in the media day in and day out, I see the stupidest and grossest of people …
Clipsham Yew Tree Avenue
With Chris Poole of the European Boxwood and Topiary Society we visited Clipsham Yew Tree Avenue in Rutland. Do you know it? Amazing place! Chris and I were teaching a topiary workshop in order to give local people the skills and technique, and tenacity! to help with the pruning of the avenue and elevate it to something even more special than it already is. Read more about the workshops here. We hope to run a further workshop in September 2026, as well as teach an advanced course too. Check the teaching page through the year as it will be updated …
