Drought tolerant plants

Dark purple agapanthus in container

Drought tolerant plants not only just look good, they’re low maintenance
Image: Agapanthus ‘Black Jack’ (RHS 2023 Chelsea Winner) from Thompson & Morgan

There are lots of good reasons to grow drought tolerant plants. During hot summers the need for frequent watering is time consuming. Not to mention costly to the environment and your pocket too, should rainfall in your area fail to keep up with demand.

We asked The Sunday Gardener, Carol Bartlett, her advice on drought tolerant plants. Here are some of her all time favourites, some of which positively thrive on neglect…

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Tough plants for tough places

Sedum 'Herbstfreude' in a garden

Sedum ‘Herbstfreude’ is ideal for poor soil and dry conditions
Image: Peter Turner Photography

Many people have a tough spot in their garden – too dry, too shady, or just too exposed to be able to easily grow plants that will thrive. Others have damp, boggy areas or frost pockets that present challenges to plant life. 

We asked The Sunday Gardener, Carol Bartlett, to share her expert advice on tough plants for tough locations. Here are some of her top suggestions for plants with the stamina and staying power to fill your tricky spots.

Shrubs for exposed areas

Euonymus ‘Emerald Gaiety’ from Thompson & Morgan

The silvery variegated foliage of euonymus brings all year round interest to tricky corners
Image: Euonymus ‘Emerald Gaiety’ from Thompson & Morgan

A blustery corner of the garden could be the ideal spot for a tough shrub such as cotoneaster. There are lots of different varieties in this group of shrubs, and an ideal sized variety that grows to around 2.5m is C. Amoenus. It’s tolerant of all soil types and copes well with partial shade and blustery conditions. An evergreen shrub, its lovely white flowers in the late spring and early summer are attractive to bees.

These are followed in the autumn and winter with masses of red berries – a feast for wild birds, and especially loved by blackbirds. It’s a tough shrub and will grow wherever you plant it, except in wet conditions.

Another tough shrub which is very hardy and tolerant of most conditions is elaeagnus. Most attractive are those with variegated leaves such as ‘Limelight’ and ‘Gilt Edge’ which has the RHS award of garden merit. Equally tough, with bright variegation is Euonymus fortunei. ‘Emerald and Green’ which has golden green leaves, and ‘Emerald Gaiety’ with white and green variations are good varieties to grow.

If you’re looking for a tough shrub with flowers, Viburnum tinus is an ideal choice. It has pretty, white-tinged, pale pink flowers in the spring and it tolerates most soil conditions, sun and shade.

Buddleja davidii is another hardy and easy to grow shrub that’s tolerant of all conditions, except wet and boggy soils. Buddleja is often called the ‘butterfly bush’ as its aromatic flowers attract a wide variety of butterflies into the garden.

Grasses for exposed areas

Carpet of pink achillea

A carpet of achillea is the perfect partner for grasses
Image: The Sunday Gardener

As an alternative to shrubs, you might like to try some of the hardier plants and grasses, but bear in mind that windy positions will cause tall grasses like Cortaderia selloana (Pampas grass) and Miscanthus to shed their lovely plumes.

Stipa tenuissima (Mexican feather grass) is an attractive, compact grass that grows to around 35cm. Ideal in harsher conditions, and with masses of soft fluffy plumes, it combines beautifully with achillea in a dry spot. Achillea’s large, flat, long-lasting flower heads continue to look good as the flowers fade.

Another plant that combines well with shrubs or grasses is nepeta. Tougher than lavender, and tolerant of different conditions including semi-shade and damp, it brings clouds of blue to your borders, from pale mauve through to deep indigo.

For excellent ground cover and as an edging for paths, Alchemilla mollis tolerates full sun, full shade and everything in between. Extremely hardy (to -20 degrees C) and tolerant of all soil types, it’s an ideal plant for tough areas. However, you’ll need to keep it in check as it’s vigorous, almost to the point of being invasive.

Plants for dry soils and rockeries

In dry poor soils, or for the small spaces between paving slabs and in rockeries, Erigeron karvinskianus is an excellent choice with its lovely pale pink and white daisy-like flowers. It will grow in many awkward areas and, once established, re-appears reliably each year.

Equally tolerant of dry conditions, if provided with a sunny spot, is sedum. This group of plants contains many different varieties including larger, upright specimens such as Herbstfreude with its familiar red and rosy pink flowers so loved by pollinators, to tiny ground-hugging plants with small but attractive flowers.

Plants for dry shade

English ivy in a garden

English ivy is a native plant loved by wildlife
Image: The Sunday Gardener

One of the trickiest conditions to successfully garden, and requiring a very tough plant, is dry shade. I recommend trying vinca, commonly known as periwinkle, which has lovely blue flowers to brighten up the gloomy areas.

Equally happy in these conditions is the English ivy Hedera helix. When mature this plant produces late autumn flowers that provide high quality nectar for bees and pollinators just when they need it, before winter hibernation. The flowers are then followed by purple berries loved by blackbirds, thrushes, blackcaps and wood pigeons. It’s a native plant with great wildlife value, as is Hawthorn, which will also tolerate difficult conditions.

With stunning lime green foliage, euphorbia is another ideal plant for dry shade. Varieties such as Euphorbia amygdaloides var. robbiae retains its lovely fresh, lime green leaves and combines well with the blue flowers of Vinca to provide bright colour in a dry shady area.

Plants for damp shade

Hosta in a garden

Slug-resistant varieties of hosta thrive in damp shade
Image: The Sunday Gardener

A tough condition that’s slightly easier to accommodate is damp shade. One of my favourite stand out plants for a darker damp corner is Astilbe. The strong white plumes of Astilbe ‘Professor van der Wielen’ are particularly good.

Astilbe combines well with ferns and hostas which thrive in damp shade. Try planting some of the more slug-resistant hostas such as Big Daddy, Gold Regal, Liberty, Halcyon, and Silvery Slugproof to keep the pests away.

Conservatory flowers

Geranium ‘Moulin Rouge’ F1 Hybrid

Smothered in scarlet blooms, this was the most outstanding pelargonium in T&M’s trials
Image: Geranium ‘Moulin Rouge’ F1 Hybrid

Finally, are you fed up of composting dead and diseased conservatory plants? If the toughest place to grow successfully in your garden is your conservatory, take a look at pelargoniums. These non-hardy geraniums not only withstand the extreme heat of your conservatory – they positively bask in it. They’ll also survive the winter in an unheated conservatory. Tolerant and forgiving, just give them a regular water and occasional feed (tomato food is fine) and geraniums will flower away from March to November. I have to make myself cut them back in November when they’re often still in flower, knowing that this will improve the plant for next year.

Geraniums have many different flower types, some with amazing scented leaves, that will happily live in your conservatory for several years. When they get leggy, simply take a cutting and start again with a fresh plant.

Geraniums really brighten up a conservatory and are one of the few flowering plants which will take the very hot temperatures unscathed.

We hope this has given you plenty of food for thought when it comes to tricky areas of your garden. For more inspiration, check out our plants for a purpose resource page. If you need more gardening advice, find everything you need to know about growing drought proof plants on our hub page.

Good companions in the veg plot

late summer vegetable garden with full rows and flowers in bloom

Plant vegetables, herbs and flowers together for optimum results
Image source: Irina Fischer

Companion planting is the art of growing different plants together to achieve certain benefits, such as helping with pest control, encouraging pollination or increasing crop yields. With a little thought, companion planting can also create a feast for the eyes, turning a functional veg plot to a glorious thing of colour and beauty.

We asked The Sunday Gardener, Carol Bartlett, for her advice on companion planting. Here are some of her top tips…

What is companion planting?

RHS Kitchen Garden at Harlow Carr

RHS Kitchen Garden at Harlow Carr
Image credit: Lee Beel

Companion planting has long historical roots, harking back to a time when there were no chemicals to control pests or to feed plants, and gardeners relied purely on nature. In the 1970s, when organic gardening became popular once again, companion planting enjoyed a renaissance which continues to this day.

But there’s another aspect to companion planting which is equally popular: using contrasting plants and vegetables to create an aesthetically appealing kitchen garden. This style of planting is illustrated above, in this RHS garden at Harlow Carr where the veg plot looks immaculate and is full of colour. In and amongst the vegetables are sweet peas, nasturtiums, tagetes and lavender, creating a veg plot that’s both beautiful and productive.

It’s fair to say that recent studies have been less than conclusive about the direct benefits of companion planting. I view it as a way to deter pests while also making my vegetable plot more attractive. In this wider context, which includes the aesthetic look of the veg plot, perhaps it’s less important to measure the direct benefits scientifically.

How companion planting works: repel and sacrifice

Closeup of orange nasturtiums and yellow chard

The combination of orange nasturtiums and yellow chard is both beautiful and strategic
Image source: Peter Turner Photography

There are two types of companion plants: some are grown because their smell repels unwanted insects, and others are grown as a sacrifice to keep the main crop insect-free.

One of the best known combinations recently receiving tentative scientific approval is planting tomatoes together with French Marigold (Tagetes patula) to reduce whitefly. Marigolds contain a substance called limonene, and scientific data confirms that tomatoes grown alongside limonene suffer less from whitefly. It’s also true that tomatoes and tagetes make a colourful planting combination!

Another good companion for tomato plants is basil. They look and taste good together, and this scented herb is said to repel pests.

Plagued by aphids? Nasturtiums make good aphid traps. The flowers secrete mustard oil which lures the insects away from brassicas and other crops. In a similar vein, some people use French marigolds as slug bait – meaning they’re used as sacrifice plants to keep your lettuce free from slugs.

Strong smelling plants, such as lavender, mint and sage are reputed to confuse and repel aphids and other unwanted insects away from many vegetables, including carrots. The combination of alliums and carrots is often recommended, but given the tenacity of the carrot fly, I personally always use a physical barrier as well. I’m happy to plant alliums and chives around my carrots, but put my faith in a sturdy barrier!

Companion planting to attract pollinators

Closeup of purple borage from the RHS

Borage is a beautiful, pollinator-friendly herb
Image source: RHS

We’re becoming ever more aware of the vital role of pollinators and bees to our food culture. Carefully chosen companion plants definitely help to attract pollinators to your vegetable plot, and the more pollination, the better the yield.

The English pot marigold, Calendula, is so easy to cultivate that it almost grows itself. Unlike the French marigold it’s of no interest to slugs, who ignore it, but pollinators like hoverflies, lacewings and ladybirds are incredibly attracted to its lovely zingy yellows and oranges. What’s more, Calendula will seed itself from year to year with no gardening attention whatsoever.

Want to increase your tomato yields? Encourage more bumble bees. In fact, bees are so essential to tomatoes that boxes of them are often imported into commercial greenhouses to work their pollinating magic. In your own greenhouse, chives are one of the best ways to attract bees and are ideal planted with tomatoes. A few pots of chives near the entrance and around your plants will welcome them in!

Another herb that’s a great friend of pollinators is borage, with its lovely delicate flowers that attract bees, butterflies, and hoverflies. But if I could grow just one plant to attract pollinators it would be oregano, beloved of all pollinating insects.

For more information about companion planting combinations, see the chart in our Companion Planting Guide. Looking for advice on how to attract pollinators to your garden? Visit our hub page to learn more about plants for pollinators, including tips on attracting bees, butterflies and other beneficial mini-beasts.

 

Starting a culinary herb garden

closeup of hands taking cuttings of basil from a white windowsill box

Grow herbs to add to your garden and kitchen.
Image: DarwelShots

Anyone can start a herb garden, no matter how little space they have available. Some people create bespoke culinary herb gardens, while others tuck these flavour-packed plants into any empty space they can find. See all the ways you can grow delicious herbs at our herb hub page now.

We asked The Sunday Gardener, Carol Bartlett, for her top tips on growing herbs at home. Here’s her sage advice…

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How to store home grown vegetables

Make the most of your home grown veg by storing it correctly
Image source: Shutterstock

There is plenty to harvest from the vegetable plot, and if you have a glut it might not be possible to eat them all at once. To enjoy vegetables throughout autumn and winter it’s vital to store them correctly. Here’s our simple guide to storing your home grown vegetables.

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