The Arch City Gardener

Journeys In St. Louis Gardening and Beyond

4 Annuals I am Obsessed With

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A benefit of surviving a hot, humid St. Louis summer is that sub-tropicals perform well here as annuals. My list below includes annuals I’m obsessed with that are common in the south, but also pack a punch here in the Midwest. Or maybe I’m obsessed with these selections because they are a throw-back to my early 20s, when I lived in Houston, TX, where I was able to admire these plants day in and day out. Either way, these plants bring up the garden energy a notch and provide a leave me with sense of joy long after their beauty has faded. Most on the list I plant each and every year; while Canna has yet to join the backyard annuals.

What annuals accent your garden?

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Canna. No, St. Louis is not the tropics, although a sweltering July or August day will give zones 8-10 a good run for their money. I do not live in the right zone for this plant, so it is classified as an annual here, but, yes, I’ve got to have this plant. I promise to shelter it from harsh winds and give it the full sun it requires and I am confident this tall, handsome plant will return the favor with gorgeous foliage that climbs the length of its 8-ft height and an unfurling of vibrant, ruffled flowers.

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Caladium. Arching gracefully above the other mix of annuals in my window boxes on the front of my house, caladiums provide a little bit of that extra curb appeal I’m looking for every summer. And they give me the height I am looking for…not too tall, but just enough to draw attention. Their variegated white/green/pink foliage provide a nice pop of color in the shade, and I adore their arrowhead shape. So pretty, you might forget they’re not a flower.

Mexican heather (cuphea hissopifolia). Some like it hot and this baby really performs when the sun beats down…as long as it receives a restorative drink of water each day. Looking for a plant that seems to be in constant bloom? Mexican heather is the perfect choice, as it always has small purple blooms among its glossy green leaves. I have incorporated this annual into my potting scheme for several years now and have never looked back. Typically I fill a pot with a variety of annuals for visual interest, but not with this one. She gets a pot all to herself.

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Nicotiana (nicotiana sylvestris). Known as flowering tobacco (for the shape of its leaves, I suspect), I am a big fan of this guy. The bright, star-shaped blooms on this annual really know how to show off. And when daylight gives way to evening, nicotiana lets of a fragrant scent that’s sure to make you slow down and take notice. I have typically planted this in pots but this year I intend to give it a go in the garden bed to accent “Spruce Springsteen,” the name we have affectionately given the dwarf Colorado blue spruce that I planted a year ago. I gave Spruce  lots of space to accommodate its girth, which won’t happen for a few more years. Nicotiana will be a nice way to fill up the mulch bed.


Author: mjarz

Welcome to the Arch City Gardener. My name is Mimi and I started this blog to share my journeys in learning to garden in St. Louis County, Missouri and learn more from my readers who garden. Thanks for reading The Arch City Gardener.

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