25 Tall Perennials For Height In The Garden
A skilled gardener knows that choosing the right plants for your garden is a true art, and that there’s a surprising amount to consider.
You need to think about the size of the garden you are working with, the colours you want to include, and the textures required to help create interest…
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A well-layered garden speaks for itself, and stands a cut above the rest.
By including tall plants to contrast with the shorter ones, you can easily create a more dynamic feel to your outdoor haven.
In fact, a study by The University of Vermont found that tall plants are more likely to grow successfully in the garden (and by extension: more likely to become invasive).1University of Vermont. (2018, November 8). Study: Tall Plants More Likely to become Invasive. News Wise. Retrieved March 27, 2023, from https://www.newswise.com/articles/study:-tall-plants-more-likely-to-become-invasive
When thinking about playing with different heights in the garden, try to think about how you would set up a beautiful family portrait.
Not only would you want the colours of your clothing to complement one another’s, but you would also place the tallest people towards the back and the smallest ones front and centre.
The same goes for choosing the right plants for your garden.
Whether you are choosing tall perennials for a purpose or planting them just for the enjoyment of it, there are thousands upon thousands to choose from, and picking out the right ones for your garden can be quite the task!
But no need to stress – we’ve collected the best towering perennial plants the UK has to offer to get your creative juices flowing, so let’s get started!
Kicking off our list of tall perennials are lovely, lofty lupins.
Lupins come in a vast range of sizes, with the tallest varieties passing 2m in height.
These striking, splendiferous plants also bloom in almost every colour of the rainbow and, better yet, are super easy to grow and care for.
Lupins aren’t too fussy about soil, but they don’t cope well in soil that’s too wet and heavy.
They grow best in full to partial sun and are absolutely ideal for the backs of borders or to hide an ugly fence or wall.
If you want to learn more about these sensational stunners, check out our article about how to grow and care for lupins here.
This tall, erect perennial sports unbranched stems that can reach heights of up to 2.5m, and its green foliage will keep you covered with luscious colour throughout the year.
Better yet, come summer, this plucky plant will treat you to pretty little purple and white flowers with yellow spots that sprout from stems as long as 50cm.
This plant gets its name thanks to its unusual, cylindrical, beehive-like structure, making it seriously stand out in a crowd.
Beehive ginger thrives in rich, well-drained soil in filtered sunlight, making it a perfect option for a large indoor pot or container.
This plant can take anywhere from two to five years to reach full height, but its unique style certainly makes it worth the wait.
For a taste of the tropics, you simply can’t go wrong with perennial hibiscus.
This impactful beauty can reach dizzying heights of over 2m and produces huge flowers of up to 30cm in diameter in seductive shades of red, pink and white.
For optimum results, plant these powerful perennials in moist, well-drained soil in a spot where they can enjoy full sunlight.
Despite its delicate appearance, this hardy plant can withstand seriously cold weather so, even if the ground freezes, this plant will still flourish.
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Giant by name, giant by nature, if it’s height you’re craving, then look no further.
This plant’s flowering pinnacle can tower as tall as 4m and, what’s more, it’s a speedy old grower, taking only one or two years to reach its maximum.
Also known as ‘Tower of Jewels’, this evergreen perennial produces blue, funnel-shaped flowers from mid to late summer, making them a charming option for country gardens.
‘Echium pininana is only half-hardy, so unless you live on the west coast in the Gulf Stream, you might find that it will not survive the winter,” says Master Horticulturist Colin Skelly.
“That said, with warmer winters, it may well be worth a try in southern England, particularly in urban areas. This is a real favourite of mine as, aside from looking spectacular, this towering column of flowers is smothered with pollinators.”
Bear in mind that this plant can spread to as much as 1m, so you will need decent space to accommodate it.
You’ll have likely seen giant fennel growing along roadside hedgerows in the countryside, and while they flourish in the wild, they are also a popular choice in domestic garden settings.
Whilst most commonly seen blooming in yellow, this perennial can also produce flowers in shades of white and purple and can grow up to 4m in height and 1m in spread.
Best grown in fertile, well-drained soil, in full sun and with some bracken mulch applied over winter, this plant pretty much grows itself.
You can improve the foliage by removing flowering stems as soon as they appear or wait and do so after blooming.
If you want to add a touch of fire to your garden, then torch lilies are just the ticket.
This perennial’s stems grow to around 1.5m in height and are adorned with red and orange blooms, which give them the appearance of red hot pokers.
This raunchy red firecracker of a plant prefers full sun and well-drained soil and is guaranteed to stand out in a crowd.
If that’s not enough, these boastful, blazing bad boys are attractive to the eye, but they are also irresistible to butterflies and other essential pollinators.
This gorgeous perennial sunflower simply can’t go without a mention.
Note that many sunflowers are grown as annuals but there are some perennial varieties which are possible to grow in the UK.
When one thinks of tall plants, sunflowers are probably one of the first to come to mind, and the ‘Monarch’ variety certainly doesn’t disappoint.
Growing up to 4m in height and producing glorious, rich yellow heads, this plant packs an impressive punch.
Sunflowers are such a quintessential part of a British country garden, and their delightfully whimsical charm makes them such a joy to grow.
For best results, plant your sunflower ‘Monarch’ in moderately fertile, moist and well-drained soil in full sun.
This ethereal, lavender-like plant produces tiny, lilac-coloured, frothy flowers, which form a serene cloud that will sway gently in the wind.
Russian sage can grow up to 1.5m in height and spread up to 1m in width, so be sure you have the space available for it before planting.
This purple perennial is extremely tolerant when it comes to soil types but is best suited to well-drained soil and full sun.
This variety of sage also requires no pruning and has very few problems with pests and diseases.
This beast forms flowering spires that can reach as high as 1.5m in height.
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These brilliantly bold plants sport glossy green leaves and, in late summer, produce tall white flowers with deep, moody, purple bracts.
This vivacious, vigorous perennial will grow in almost any soil type, but if possible, provide it with deep, well-drained loam in a sheltered spot in full sun or partial shade.
As bears don’t tend to wear breeches, it’s unclear as to where this plant’s name stems from, but these majestic plants are a spectacular addition to any garden, providing you have the space.
Technically a biennial (or short-lived perennial), foxgloves might ordinarily not be included on an ordinary list of perennials.
However they are well-known to self-seed prolifically, meaning they will come back each year – most likely in greater numbers than before.
The upright flowering columns are awe-inspiring and a huge hit with bees too!
While Digitalis purpurea prefers a partially shaded spot in your garden, it will pretty much grow in most conditions, making it ideal for an exposed area that might otherwise be difficult to grow on.
Towering plants help to bring structure to your garden year after year, rewarding you with bursts of colour and lofty, dramatic vibes.
But, aesthetics aside, there are plenty of other reasons for wanting to include tall perennials in your garden.
Planted in large pots, large flowering perennials can really bring a patio or courtyard to life.
If you aren’t blessed with a big garden, then this is an excellent option to spruce up the space you have.
If you have no outside space whatsoever, you can rest assured as there are also plenty of tall perennial plants that will thrive inside, providing you with a peaceful and tranquil place to relax after a long day.
Another option for those of you with a modest-sized garden is to pick out tall perennials to create a living wall – if you can’t grow out, grow up!
Living walls have become increasingly popular over the last decade and are an elegant, space-saving way to enjoy gardening from a completely different angle.
Many perennials will happily allow themselves to be trained vertically, and with a little imagination and care, a living wall can be one hell of a showstopper.
Are you stressed out by nosy neighbours or passersby having a good old gander into your garden?
Tall perennials can create a perfect privacy screen and shield your little corner of the world from prying eyes.
Not only will this screen provide you with the seclusion you seek, but it will also create a beautiful backdrop for the rest of your garden.
If your property has an ugly wall, or an unsightly fence that is far from easy on the eyes, instead of repainting or replacing, why not save time and camouflage it with some pretty perennials?
Perennials flourish for years, and even when they aren’t blooming, their foliage is lush and lavish and will easily turn a shabby area into your favourite spot.
As you can see, there are countless colossal perennials that can take your garden from zero to hero.
Before you start planting, we do recommend doing your research to ensure you have the space and the right soil to help your new, lofty, looming plants prevail.
A 2011 study by Scientists at Tohoku University found that plants in a crowded state regulate their height so as to maintain a similar height to their neighbours.2Nagashima, H., & Hikosaka, K. (2011). Plants in a crowded stand regulate their height growth so as to maintain similar heights to neighbours even when they have potential advantages in height growth. Annals of Botany, 108(1), 207-214. https://doi.org/10.1093/aob/mcr109
So remember, if you want your plants to grow as tall as possible, allow them plenty of space to grow – and don’t grow them alongside shorter plants.
Whatever the size of your garden, you will be able to find a tall perennial that suits your needs, so stand up, stand tall, and start planting.
Source: https://gardencourte.com
Categories: Outdoor
This post was last modified on 06/11/2023 01:00
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