Lifestyles

Perennials replace fading annuals

Echinaceas are also now in full bloom, and all the new colours from vibrant orange and golden yellow to white and hot pink provide a lasting perennial display. They also attract butterflies and honeybees. - Contributed
Echinaceas are also now in full bloom, and all the new colours from vibrant orange and golden yellow to white and hot pink provide a lasting perennial display. They also attract butterflies and honeybees.
— image credit: Contributed

The rather late, wet start to spring this year and the long hot, dry spell has taken its toll on many of our annuals.

Some varieties are starting to look somewhat hard and burnt, instead of being soft and vegetative, and many annuals have stopped growing.

Heat and water stress are the major causes of this hardness.

Unfortunately, these stressed-out annuals can leave your garden looking a little blah this time of year, which may be awkward  with many friends and relatives visiting.

Late flowering summer annuals and perennials, however, can give your garden some needed fresh colour and a few very special plants do more than their share to keep the colour going.

Yellow is always an important colour to give a lift to late summer gardens, and two excellent perennials immediately come to mind.

The longest and strongest flowering variety has got to be the lacy leafed Coreopsis verticulata ‘Zagreb’.  It just never quits.

Its cousin, the softer yellow C. ‘Moonbeam’, is also a non-stop flowering, more spreading variety.

Both always look good without any care or attention and defy the concept of perennials needing a lot of work.

My other favourite yellow perennial is a rudbeckia called ‘Goldsturm’. This European introduction is just out of this world.  It’s hardy, relatively short (about 30 centimetres), and its large, single, yellow daisy-like flowers just keep on blooming right up until October.

‘Goldsturm’ is such an improvement over the other varieties – they’re not even in the same league.

A new shorter variety called ‘Little Gold Star’ is also stealing the show.  It grows only 15 cm tall and produces an abundance of colour.  It’s a ‘hottie’.

Not to be outdone, annual rudbeckias really steal the show at this time of year.

The low, larger flowered ‘Becky’ and smaller flowered ‘Toto’ series perform magnificently in our hot weather.

For taller, more background plants, the ‘Hirta’ series, like the award winning ‘Prairie Sun’ and ‘Denver Daisy’, does the job nicely.

Helleniums truly provide some of the richest summer colours from bronze to burgundy, as well as terrific bicolours.

There are many varieties, but H. ‘Sahin’ is a gold bronze bicolour that just never quits.

Echinaceas are also now in full bloom, and all the new colours from vibrant orange and golden yellow to white and hot pink provide a lasting perennial display.  They also attract butterflies and honeybees. The new ‘Pow Wow’ series is truly the most prolific.

Some other excellent late summer blooming perennials not to be forgotten are the pink-lavender blooms of Joe-pye Weed (Eupatorium ‘Atropurpureum); the white, fragrant flowers of all the cimicifuga; and some of the new heliopsis varieties that make wonderful backdrops for perennial borders.

Japanese anemones, too, are one of the amazing long flowering fall perennials, as are the beautiful new basil-branching achilleas, especially the ‘Seduction’ series.

Although in our region, they can vary in hardiness as perennials, chrysanthemums are just now arriving in garden stores. They tolerate both the hot sun and rain and add a fresh new look to August and September gardens.

Despite of the weather we may experience from year to year and how it impacts on our annuals, these perennials, and many more like them, are the workhorses of any garden and will add wonderful colour to a late summer garden, carrying it into fall.

 

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