
My small box hedge has been decimated by box hedge caterpillar so it is coming out. I have looked at several alternatives according to the RHS website most of them are toxic to pets and wildlife. These include yew, Japanese holly and the normal alternatives. I have thought of a dwarf lavender instead but I am not sure. Does anyone have any good alternatives please. I have attached a photo showing the hedge a year ago so you can see the approximate size and setting.
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The variegated Euonymous fortuneii varieties can also be used as low hedging. Some are less tough than others so it will depend whereabouts you are in the country.
Some Hebes are also good, although best trimmed as balls. Many varieties are naturally that shape.
The other plants you mention might technically be toxic, but are grown in thousands of gardens without any problem.
I live in west central Scotland - not where that photo is...
https://www.hedging.co.uk/acatalog/product_199959.html
Euonymus 'Jean Hughues' would be my choice - it's my 'go to' for small clipped hedges.
I wouldn't overly worry about the 'toxic to pets ' tag either. Many plants in a garden are 'toxic' (I have 4 Brugmansias in pots) - however it's the dose that makes them so. In other words ones pet would often need to eat quite a bit to become sick. My dog eats all sorts of stuff in the garden not to mention drinking pond water - he'll throw it up once in a while but he's just turned 17 so it can't be that big a hazard.
Ask yourself how often you hear of pet fatalities due to eating a garden plant?
The only case I've heard of was a dog chewing on roots of Aconitum napellus that had been dug up to split and replant.
Our dog does nibble on plants, but nothing to worry about, and certainly not the types of shrubs you are considering. We only got rid of two very toxic plants (Cycas palms, and Ricinus Communis), but I almost regret that now. They don't tend to make a meal of anything in the garden.