1Hardy geraniums
Pauline Lewis//Getty ImagesThis low-growing groundcover, also known as cranesbill, has elegant flowers that float above its foliage in late spring to early summer. Hardy geraniums grow in all sorts of soils and conditions. I started with one plant more than a decade ago and have since transplanted pieces throughout my garden.
2Lilac
Anna Hedderly//Getty ImagesLilacs can live for decades, but many become ginormous and overwhelm a space. I fell in love with a reblooming type, 'Bloomerang Dwarf Purple', a variety that keeps a nicely mounded three-by-five-foot shape.
It even survived a mid-season move due to a reno project. Now, that’s a tough plant!
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3Sweet Alyssum
getty images//Getty ImagesThis honey-scented, low-growing annual is a delightful plant that attracts tons of beneficial insects to my garden. It's gorgeous when spilling out of window boxes and mixed planters.
My favourite cultivar is ‘Snow Princess’, which blooms non-stop until a hard freeze. It's often one of the last annuals to survive well into late autumn.
4Russian sage
Tom Meaker//Getty ImagesFor hot, dry areas of your garden, you can't beat Russian sage. This perennial has willowy, silvery foliage that's covered in tiny bright blue flowers. The effect is ethereal when planted in drifts. ‘Denim ‘n Lace’ is my favourite cultivar.
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5Sedum
Alex Manders//Getty ImagesSedum, also known as stonecrop, is a succulent, so it’s drought-tolerant. It provides beautiful late-season colour and food for pollinators. Mine is always covered in honeybees in late August and September.
Many new cultivars have been introduced, but ‘Autumn Joy’ is an old favourite that still delivers, while ‘Brilliant’ has more intensely pink flowers on sturdy stems.
6Hellebore
Katrin Ray Shumakov//Getty ImagesHellebores are late winter to early spring bloomers that really need very little care. Their exquisite blooms also make excellent cut flowers. Though this perennial is slow to take off and took about five seasons before it really showed off in my garden, it's been worth the wait.
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7Dead-nettle
PATSTOCK//Getty ImagesDead-nettles, also known as lamium, are an underappreciated groundcover. With silvery-green foliage and pretty pink, purple or white flowers, it adds splashes of colour to shady locations, though it can take some morning sun. This perennial is a fast grower but won’t take over your garden. I’ve grown many types but especially like ‘Pink Chablis’.
8Sweet potato vine
Donna Bollenbach//Getty ImagesThis vigorous annual vine comes in colours ranging from chartreuse to deepest burgundy. It looks beautiful tumbling out of planters or window boxes and doesn't fade one bit in the heat. It's equally happy in shade or sun. I prefer to plant it solo in pots because it will crowd out other plants in a container.
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9Catmint
Zoran Ivanovich//Getty ImagesCatmint is virtually indestructible. Heat- and drought-tolerant, this sun-loving perennial has silvery-green foliage and tonnes of purple flower spikes that bloom for months. It also attracts pollinators. I love ‘Purrsian Blue’ for its dark purple-blue flowers and ‘Picture Purrfect’ for its earlier bloom time.
10Panicled hydrangea
Tunatura//Getty ImagesI love hydrangeas and have about 25 different varieties in my garden. But the most carefree type is the panicle hydrangea. They’re equally tolerant of cold and heat, and because they bloom on new wood, you won’t lose this year’s blooms, even if you had a harsh winter. My favourites include ‘Bobo’, ‘Quick Fire’ and ‘Little Lime.’

Arricca Elin SanSone is a writer, editor, and content creator who specializes in lifestyle and gardening. With a background in health reporting, she applies these same research skills when writing about the science of growing things. She trials new plants in her expansive garden, and her houseplant collection consists of 60+ varieties. Arricca has written thousands of articles for publications such as Country Living, House Beautiful, Good Housekeeping, Prevention, VERANDA, Southern Living, and more. She’s happiest when digging in the dirt, baking, or spending time with the people and dogs she loves.
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