Best Plants for a Small Garden UK: Flowers, Climbers & Vegetables for Compact Spaces

Q: What are the best plants for a small garden?

Some of the best plants for small gardens include Verbena bonariensis, Agapanthus, Aquilegia, Clematis, Sweet Peas, Cosmos, Violas, and Lavender . These plants provide a long flowering season, attractive foliage, or vertical interest without taking up excessive space.

Having a small garden doesn’t mean you have to compromise on colour, scent or variety. In fact, some of the most attractive gardens in Britain occupy surprisingly little space. With careful plant selection and clever use of vertical growing techniques, even the smallest garden can become a vibrant and productive outdoor space.

For the past several years, my own garden has been relatively modest in size. Through trial and error, I’ve discovered which plants provide the greatest impact in compact gardens while remaining manageable and attractive throughout the year.

Think Vertically

When gardening in a small space, the most valuable area is often the one gardeners overlook – the vertical space above their heads.

By using taller plants, climbers, hanging baskets and trellis systems, you can dramatically increase the planting potential of even the smallest plot.

Tall Plants for Small Gardens

Tall, narrow plants create height and structure without occupying much ground space.

Chinese Dwarf Bamboo (Shibataea chilensis)

One of the best screening plants for a small garden. Unlike many bamboos, this species remains relatively compact while providing evergreen foliage and year-round interest.

Aquilegia (Columbine)

Aquilegias are charming cottage garden plants that produce delicate nodding flowers in late spring. Their upright growth habit makes them ideal for narrow borders.

Campanula pyramidalis

This striking bellflower produces impressive flower spikes covered in blue blooms. Perfect for adding vertical interest to compact gardens.

Dwarf Hollyhock

A traditional cottage garden favourite that brings height without overwhelming smaller spaces.

Dwarf Iris

Compact, colourful and easy to grow. Dwarf irises provide an early burst of spring colour and work beautifully in containers and front-of-border positions.

Echinops ruthenicus

Often called Globe Thistle, Echinops produces architectural steel-blue flower heads that attract bees and butterflies.

Sunflowers

Modern dwarf varieties are perfect for small gardens and container growing, offering cheerful flowers throughout summer.

Foxgloves

Excellent for cottage gardens and wildlife-friendly planting schemes. Their tall flower spikes occupy very little ground space.

Stocks (Matthiola)

Grown primarily for their exceptional fragrance, stocks are ideal for patios and seating areas.

Verbascum

Tall flower spikes and silvery foliage make Verbascum one of the best architectural plants for small gardens.

Canna indica

Cannas provide a tropical look with large leaves and bold flowers. They are ideal for creating a dramatic focal point. See: https://www.theallotmentgarden.co.uk/growing-canna/

Gladioli

Excellent cut flowers that add height and colour during summer.

Verbena bonariensis

One of the best plants for small gardens. Its airy stems allow light to pass through, creating height without visual bulk.

Agapanthus

Beautiful globe-shaped flower heads and attractive strap-like foliage make Agapanthus ideal for containers and patio displays.

Delphiniums and Larkspur

Classic cottage garden flowers that create stunning vertical displays in narrow borders.

Best Climbers for Small Gardens

Climbers allow gardeners to utilise walls, fences, sheds and pergolas.

Sweet Peas

One of the finest scented climbers available. Sweet peas flower for months and take up very little ground space. Read more: https://www.theallotmentgarden.co.uk/growing-sweet-peas/

Clematis

Available in many colours and flowering periods, clematis are among the most versatile climbing plants for small gardens.

Climbing Hydrangea

Perfect for shady walls and north-facing aspects.

Chilean Glory Vine

Produces masses of orange-red flowers and thrives in sheltered locations.

Black-Eyed Susan Vine

A fast-growing annual climber with cheerful yellow and orange flowers.

Morning Glory

Produces trumpet-shaped blooms throughout summer and quickly covers fences and trellis.

More ideas can be found here: https://www.theallotmentgarden.co.uk/scented-climbers/

Border and Container Plants

Containers are invaluable in small gardens because they allow you to move displays around and maximise seasonal colour.

Thymus vulgaris ‘Aureus’

A fragrant golden-leaved thyme that provides colour, texture and culinary uses.

Bacopa

One of the best trailing plants for containers and baskets.

Lobelia

Produces masses of blue, purple or white flowers throughout summer.

Livingstone Daisy

Ideal for sunny positions where its colourful flowers open fully in bright conditions.

Aubrieta

A classic rock garden plant that provides carpets of spring colour.

Begonia Semperflorens

Reliable bedding begonias that flower continuously from late spring until autumn.

Cosmos

One of the longest-flowering annuals for small gardens.

Cyclamen

Excellent for adding autumn and winter colour.

Dahlia ‘Figaro’

Compact dahlias with impressive flowering performance.

Nemesia

Produces scented flowers over a long period and works exceptionally well in containers.

Viola

Perfect for extending colour through autumn, winter and spring.

Sempervivum and Sedums

Among the best drought-tolerant plants for containers and small gardens.

For more compact flowering plants see:
https://www.theallotmentgarden.co.uk/popular-bedding-plants/

Hanging Basket Plants

Hanging baskets create additional growing space without taking up valuable ground.

Trailing Violas
Bacopa
Trailing Begonias
Dichondra
Ivy Geraniums
Diascia
Lobelia
Fuchsia
Calibrachoa

For basket preparation advice:
https://www.theallotmentgarden.co.uk/lining-hanging-baskets/

Vegetables for Small Gardens

Many vegetables are attractive enough to earn a place among ornamental plants.

Potatoes

Grow successfully in containers, tubs and grow bags.

Runner Beans

Provide edible crops and attractive screening. See:
https://www.theallotmentgarden.co.uk/grow-runner-beans/

Carrots, Beetroot and Parsnips

Ideal for deep containers and raised beds.

Sweetcorn

Creates a dramatic summer screen while producing delicious cobs.

Strawberries

One of the easiest fruits for containers and hanging baskets.
https://www.theallotmentgarden.co.uk/how-to-grow-strawberries-in-a-container/

Swiss Chard

Its colourful stems make it attractive enough for flower borders.

Chilli Peppers

Highly ornamental and productive in containers.
https://www.theallotmentgarden.co.uk/how-to-grow-chillies-in-the-uk/

Frequently Asked Questions About Plants for Small Gardens

What are the best plants for a small garden?

Some of the best plants for small gardens include Verbena bonariensis, Agapanthus, Aquilegia, Clematis, Sweet Peas, Cosmos, Violas, and Lavender. These plants provide a long flowering season, attractive foliage, or vertical interest without taking up excessive space.

How do you make a small garden look bigger?

Several design techniques can make a compact garden appear larger:

Grow plants vertically using trellis and climbers.
Use a limited colour palette.
Position taller plants at the back of borders.
Incorporate mirrors carefully.
Choose plants with an open growth habit, such as Verbena bonariensis.
Use containers to add layers of planting.

What are the best climbers for a small garden?

Climbers are ideal for maximising space. Excellent choices include:

Sweet Peas
Clematis
Climbing Hydrangea
Honeysuckle
Black-Eyed Susan Vine
Morning Glory

These plants provide colour, fragrance and privacy while occupying very little ground space.

Can you grow vegetables in a small garden?

Yes. Many vegetables thrive in containers, raised beds and hanging baskets. Potatoes, strawberries, lettuce, beetroot, carrots, chillies and runner beans are particularly well suited to small-space gardening.

Which plants grow well in containers?

Many flowering plants thrive in pots, including:

Agapanthus
Begonias
Nemesia
Cosmos
Lobelia
Bacopa
Violas
Dwarf Dahlias

Container gardening allows you to create colourful displays even if you only have a patio or balcony.

What are the best low-maintenance plants for a small garden?

If you’re looking for easy-care plants, consider:

Sedums
Sempervivums
Lavender
Aubrieta
Agapanthus
Hardy Geraniums

These plants generally require little watering, feeding or pruning once established.

What plants provide year-round interest in a small garden?

A combination of evergreen plants, spring bulbs, summer flowers and winter-flowering species can ensure year-round appeal. Consider combining:

Bamboo
Hellebores
Cyclamen
Sedums
Agapanthus
Evergreen herbs such as Thyme and Rosemary

Can hanging baskets replace flower borders?

In very small gardens, hanging baskets can effectively increase growing space and provide continuous colour throughout the season. They are especially useful on patios, balconies and courtyards where ground space is limited.

Which plants attract bees and butterflies in a small garden?

Pollinator-friendly plants suitable for compact gardens include:

Verbena bonariensis
Lavender
Cosmos
Foxgloves
Campanula
Sweet Peas
Agapanthus
Sedums

Even a small collection of nectar-rich flowers can make a significant difference to local wildlife.

What is the best plant for a small cottage garden?

Aquilegia is one of the best cottage garden plants for small spaces. It self-seeds gently, flowers reliably and combines beautifully with foxgloves, campanulas and sweet peas.

Recommended External Resources

The following trusted organisations provide excellent advice on small-space gardening and plant care:

Royal Horticultural Society (RHS)

Small garden design ideas and planting advice:

https://www.rhs.org.uk/gardens

BBC Gardeners’ World

Inspiration for small gardens, containers and patio planting:

https://www.gardenersworld.com

Garden Organic

Organic gardening techniques suitable for small gardens:

https://www.gardenorganic.org.uk

National Garden Scheme

Ideas from real gardens across the UK:

https://ngs.org.uk

The Hardy Plant Society

Information on perennials suitable for compact gardens:

https://www.hardy-plant.org.uk

Plantlife

Advice on pollinator-friendly and wildlife-supporting planting:

https://www.plantlife.org.uk