After the Hottest Summer on Record – Drought-Resistant Planting Ideas

The solution? Embrace drought-tolerant planting. By choosing the right plants and gardening techniques, you can create a garden that weathers the dry heat with minimal irrigation. Below, we’ll cover what makes a plant drought-resistant, suggest some hardy plant choices for dry conditions, and discuss the best time to plant them for success.

Characteristics of Drought-Tolerant Plants:

Many of the best drought survivors originate from regions like the Mediterranean, South Africa, or arid parts of the Americas. Over time, these plants evolved features to thrive with infrequent rainfall and intense sun. Common adaptive traits include:

Foliage adaptations: Drought-tolerant plants often have small or narrow leaves (reducing surface area and water loss) or grey/silver leaves that reflect sunlight. Many have a coating of fine hairs or a waxy layer on leaves which helps trap moisture and deflect sun – think of the fuzzy silver leaves of lamb’s ear (Stachys byzantina) as an example. Others are succulents with fleshy leaves or stems that store water (like sedums and aloes). Gray-green, hairy, or succulent foliage is a tell-tale sign of a water-wise plant.
Deep or extensive roots: To find water, these plants often grow very deep tap roots or wide-spreading roots. For instance, Mediterranean shrubs like rosemary and sage sink roots deep into the soil. This allows them to access moisture well below the surface and survive long dry spells. Bulbs and corms (like Iris, Tulipa, etc.) survive drought by storing energy in underground organs, then going dormant.
Seasonal dormancy: Some truly drought-adapted species avoid the worst stress by going dormant during the hottest, driest part of the year. They may flower in spring and then drop leaves or die back in summer to conserve water (a strategy common in California and South African plants). In the UK, our droughts aren’t usually that long, but you may see plants like Crocosmia or Sedum naturally flowering later when they get what they need.
Low stature or open form: A number of dry-area plants grow low to the ground or in mounds, which reduces exposure to wind and sun. For example, thyme and oregano hug the ground and thus lose less moisture than a tall leafy plant. Ornamental grasses often have narrow leaves that roll up in drought and an open form that lets hot winds pass through.

In short, if you see a plant with silvery, aromatic leaves or a cactus-like juicy stem, chances are it will do well in a dry spot. Now let’s look at some beautiful drought-tolerant plants you can use in your garden.

Great Plants for Dry Conditions:

You don’t need a desert-style garden of only cacti and rocks (though that’s one aesthetic). Many flowering perennials, shrubs, and herbs can handle drought once established and still provide color and interest. Here are some top picks:

Mediterranean Herbs: Herbs are champions of dry gardens. Lavender, rosemary, thyme, sage, and oregano (marjoram) all thrive in poor, dry soils and love sun. Their leaves are often fragrant, grey-green, and a bit leathery or hairy – built for drought. Plant lavender or rosemary as structural shrubs (great for borders or low hedges), and use creeping thyme or oregano as fragrant groundcovers. They will release wonderful scents in the heat and attract bees when in bloom. These plants prefer good drainage; incorporate grit or sand if you have heavy soil.
Ornamental Grasses: Many grasses are extremely resilient to drought and look graceful moving in the breeze. For example, Stipa tenuissima (Mexican feather grass) provides delicate, feathery texture and survives dry spells easily. Festuca glauca (blue fescue) is a small clumping grass with blue-grey needles that rarely needs water. Larger grasses like Miscanthus or Pennisetum (fountain grass) also tolerate dry summers once their root systems are established. Grasses bring a wild, natural look and pair well with flowering perennials.
Succulents & Rock Garden Plants: Consider adding some succulent species to the garden or in containers. Sedum (Stonecrop) is a fantastic group of succulents; low-growing types like Sedum spurium can form a mat in the front of a border, and taller types like Sedum spectabile (now Hylotelephium, also known as ice plant) produce big clusters of pink flowers late summer – all with minimal water. Sempervivum (houseleeks) can live in the cracks of rock walls or shallow soil and come in many rosette forms. Other drought-proof choices include Delosperma (hardy ice plant) for bright magenta daisy-like blooms, and Agave or Yucca (if you want a dramatic spiky focal point in milder regions).
Flowering Perennials: There’s no shortage of color among drought-tolerant perennials. Try Achillea (Yarrow) – flat-topped flower clusters in gold, red, pink or white that adore sun and dry soil. Cultivar ‘Terracotta’ (rich orange) or pastel varieties add a cottage-garden vibe in tough conditions. Salvia and Russian Sage (Perovskia) are must-haves – these aromatic sages have purple-blue flower spikes that thrive in heat and dry soil. Echinacea (Coneflower) and Rudbeckia (Black-eyed Susan) are prairie natives with summer daisy blooms that handle drought once established (they do have deeper roots). Gaillardia (blanket flower) blooms nonstop in reds and yellows and actually prefers dry heat to wet soil. Don’t forget Bulbs like Alliums and Bearded Iris, which naturally come from dry summer climates – they will sail through a heatwave and provide spring color.
Shrubs for Dry Areas: If you need shrubs, look to Mediterranean origins. Cistus (Rockrose) is an evergreen shrub with grey leaves and beautiful papery white or pink flowers in early summer – it loves sun and drought. Ceanothus (Californian lilac) is another – certain varieties are very tolerant of dry soil and reward you with clouds of blue flowers in late spring. Oleander is very drought-tough and flowers all summer, but it’s only suitable for very mild or coastal areas in the UK (and note: oleander is poisonous). Buddleja (butterfly bush) actually thrives in neglect and dry ground; newer dwarf varieties fit well in smaller gardens and still feed the butterflies.

When incorporating these plants, remember that even drought-tolerant plants need water to get established. In their first season or two, water them deeply until their roots grow out. After that, they will require much less supplemental watering. Grouping plants with similar water needs is wise – this concept of “hydrozoning” ensures you aren’t overwatering some while under-watering others.

Water-Saving Garden Tips:

In addition to plant choice, how you garden can improve drought resilience. Add plenty of organic matter (like compost) to your soil – this increases its water-holding capacity for sandy soils and improves drainage in clay (so water penetrates deeper, encouraging roots to follow). Mulching around plants with gravel, bark, or other mulch is extremely beneficial: it reduces evaporation from soil and keeps roots cooler. Mulch also helps suppress weeds that would compete for moisture. If possible, contour your garden with slight berms or channels to direct any rainfall toward plant root zones (called “rain gardening”). And of course, if water restrictions allow, use efficient irrigation like soaker hoses or drip lines to target water to the roots and avoid waste.

When to Plant:

To set your drought-tolerant garden up for success, timing is key. In the UK, autumn is the ideal planting season for hardy perennials, shrubs, and trees – especially those that need to withstand drought. Planting in autumn (September to early November) while the soil is still warm but air temperatures have cooled allows roots to establish over the winter and early spring. There’s naturally more rainfall in winter, so plants can settle in without heat stress. By the time the next summer arrives, they’ll have a stronger foundation to cope with dry weather. Fall planting gives plants the best start – they experience less transplant shock and can take advantage of the full growing season next year. Alternatively, early spring is the next best time, as soon as the ground is workable, so roots can grow before summer heat. Avoid planting in peak summer if you can (the stress of heat and drought makes establishment difficult, even for tough plants).

Remember to water new plantings thoroughly at the time of planting and regularly for the first several weeks – even drought-hardy plants need that initial drink to settle in. After a plant proves itself (usually after one full growing season), you can ease off and water sparingly, only in extended dry periods.

By choosing appropriate plants and planting at the right time, you can transform your garden into a resilient, drought-resistant landscape. Imagine a scene of lavender and grasses swaying in the breeze, succulents tucked among rocks, and bright perennials blooming under the sun – and no worrying about constant watering or losing plants to the next heatwave. Not only will you save effort and water, but you’ll also be ahead of the curve in sustainable gardening practices. With hotter summers likely becoming the norm, a drought-tolerant garden is a smart and beautiful way to adapt.