On this page, you’ll find all our tall outdoor plants that grow to a height of 90 to 120cm. That’s roughly 3 to 4ft tall! Check out each individual plant variety to find out what dimensions they will grow to with enough space and gardening know-how. Don’t forget, all our tall outdoor plants are available with free UK delivery. So there’s no need to drag around a huge plant as you navigate the gardening centre. Just choose your favourite British outdoor plants here and have them delivered straight to your door. Whether you need short or tall outdoor plants, we have something you’ll love. Our best 4ft outdoor plants are right here.