The Beauty of Dinner Plate Hibiscus

By Ava Green

The big, bold, showy, dinner-plate-sized flowers on hardy Hibiscus (Hibiscus moscheutos, also known as Swamp Rose-Mallow) are unforgettable, to say the least.  What a surprise it is to discover that this perennial plant not only survives our Zone 6, Southern Ontario climate, but thrives here! And despite its dramatic, exotic look, this plant is genuinely easy to grow. 

What Hardy Hibiscus Loves

Hardy hibiscus thrives in full sun with moist, well-drained soil and produces huge, gorgeous flowers without spreading and becoming invasive. As a rule of thumb: more sun means more blooms.

Give it ample space as it can grow 4-7 feet tall depending on the variety. Plant it 2-3 feet apart in a border, rain garden, meadow, or beside a fence, stream or pond, and it will thrive there for many years. Because it prefers consistently moist soil, avoid planting it near a brick wall or a driveway as these areas tend to dry out quickly.

When transplanting, add compost into the hole, and keep the base of the stem level with the surrounding soil. Don't mound soil or mulch up around the stems. If you’re planting your hibiscus in the fall, aim to do it at least 6 weeks before the ground freezes so the roots have time to settle in. 

If you'd like a bushier, more compact shrub, you can cut these plants back by half in June.

One thing to keep in mind: hardy hibiscus is very slow to start in spring. Don’t be alarmed if it doesn’t show new growth until the soil warms to around 21º Celsius.

What We Love About Hardy Hibiscus

If everything mentioned above isn’t enough to entice you, there’s more! 

Their enormous, ruffled flowers can reach a full foot in diameter, growing on sturdy, woody stems that stay upright on their own; no staking required. While they resemble their tropical hibiscus relatives, or Rose of Sharon (Hibiscus syriacus), hardy hibiscus produces noticeably larger blooms. They flower mid to late summer in dreamy shades of white, pink, and red.

Seeing Is Believing

Stop by Eising Garden Centre and see the stunning beauty of hardy hibiscus in person. You just might fall in love too!

Staff Picks to Brighten Your Garden

By Ava Green

If I asked you to name a yellow perennial flower, you might immediately think of Black-eyed Susans. They’re definitely a perennial favourite!

The goal of this article is to introduce you to other yellow plants that we love and think you will too!  These perennials come back reliably every year, and look sunny and gorgeous.

Some of these plants also come in other colours, but today we’re sharing yellow varieties.

Coreopsis

Also known as Tickseed, these versatile, native North American plants come in a wide range of yellow shades, from pale and subdued to bright and showy. They also come in various heights to suit a wide range of garden locations.

Best for: Well-drained, average soil. Coreopsis will become floppy or die in moist, fertile, or cool locations. They are tolerant of poor soil and drought | Sun: Full sun | Mature size: 1-2 ft. tall and wide; however, Tall Coreopsis can reach 5-9 ft. tall and 3-6 ft. wide

False Sunflower, Heliopsis helianthoides

False Sunflower checks a lot of wish-list boxes: radiant, long-blooming, heat-tolerant, loved by bees and butterflies, and an exceptionally hardy native perennial here in Zone 6 Southern Ontario. To keep these tall plants shorter, stronger and bushier, cut back new growth by half in May and divide them every three years so they don’t become too dense.

Best for: Moist, well-drained areas with lots of space to grow | Sun: Full sun, tolerates part shade | Mature size: 3-6 ft  tall × 2-3 ft wide

Torch Flower, Kniphofia

Also known as Torch Lilies or Red Hot Poker, this unusual, striking plant is a stop-and-take-notice focal point in any border, providing weeks of continuous colour throughout summer. It’s also a magnet for plenty of pollinators.

Best for: Areas with very good drainage, as wet soil can cause root rot | Sun: Full sun | Mature size: 3-3.5 ft. tall × 2-2.5 ft. wide

Hosta

Hostas provide season-long colour, with their sturdy foliage doing most of the work. While many varieties have green or blue-green leaves, some offer very pretty yellow foliage instead. Give them 2-4 hours of morning sun each day and an inch of water each week, and that bright yellow colour will stay vivid all season. Flowers are often the main selling point for perennials, but hosta foliage proves that structure, not just blooms, can be just as valuable in a garden.

Best for: Areas with morning sun, which helps to intensify their colour | Sun: Part sun, preferably morning | Mature size: 6 in. to 3 ft. tall × 10 in. to 6 ft. wide depending on the variety (miniature cultivars stay toward the smaller end of that range)

Ligularia

Ligularia are unforgettable, with their large “tractor seat” leaves and tall spikes of candelabra-like flowers. They're a little more finicky about location, though; they need plenty of moisture and abundant morning sun, but must be protected from hot afternoon sun to truly thrive. Give them the right conditions, and this dramatic, bold plant will command all of the attention in your garden.

Best for: A woodland garden, rain garden, the edge of a pond or stream, in a swamp or bog where there is consistent moisture | Sun: Full sun where there is lots of moisture, otherwise Light or Partial shade with morning sun only | Mature size: 1-6 ft. tall × 1.5-4 ft. wide

More Yellow Perennials Worth Considering

Stop by Eising Garden Centre and chat with Mary or Donna; they’re always happy to help you find your favourite yellow perennials. Here are a more to check out:

Black-Eyed Susan (Rudbeckia), Stonecrop (Sedum ‘Yellow Brick Road’), Shasta Daisy (Leucanthemum ‘Banana Cream), Hardy Hibiscus (Hibiscus ‘French Vanilla’), Daylily (Hemerocallis ‘Hyperion’, ‘Happy Returns’, ‘Yellowstone’, ‘Going Bananas’ and ‘Stella D’oro’), Lenten Rose (Helleborus ‘Spanish Flare’, Coneflower (Echinacea ‘Yellow My Darling’), False Indigo (Baptisia ‘Lemon Meringue’ and ‘American Goldfinch’), Yarrow (Achillea ‘Firefly Sunshine’, ‘Moonshine’, ‘Coronation Gold’, and ‘Firefly Sunshine’), Cup Plant (Silphium perfoliatum), Hollyhock (Alcea), Helenium (‘Hay Day’, Dakota Gold’ and ‘Sombrero’, Itoh Peony (‘Yellow Emperor’, ‘Bartzella’, and ‘Garden Treasure’), Butterfly Weed (Asclepias tuberosa), Foxglove (Digitalis), Columbine (Yellow Queen), Eastern Prickly Pear Cactus (Opuntia cespitosa or Opuntia humifusa - native cactus), and Japanese Forest Grass (‘All Gold’).

That’s a lot of yellow, and as the saying goes: where yellow blooms, happiness follows!

The Queen of the Classic Garden Border

By Ava Green

Tall, stately, and undeniably dramatic, the Delphinium or Larkspur is one of those perennial plants that stops people in their tracks. When given the right conditions, its towering floral spikes are magnificent. For gardeners who love a classic English border, nothing else compares. Yes, Delphiniums have lots of preferences, but tend to them, and they will reward you with a floral display that makes every bit of effort worthwhile. 

Choosing Your Delphiniums

With a wide number of varieties to choose from, there’s one that’s sure to fit every garden. Heights range from a modest 36 inches to an impressive 72 inches tall (Yes, 6 feet!), with a spread of 24 to 36 inches depending on the variety. So whether you have a compact border or a large sweeping bed, there’s a Delphinium to suit your space.

Their colour palette is equally diverse: rich blues and purples, soft pinks, crisp whites, and beautiful bicolours. Few flowers offer such a wide range. 

Planting

While Delphiniums prefer abundant moisture, be sure to plant the crown of the plant (where the stems meet the root ball) at soil level to avoid crown rot. Planting them too deeply is the most common way to lose these plants.

Spring and Fall are the ideal times to plant, giving roots a chance to establish themselves in cooler, more forgiving conditions. That said, a cool, overcast summer day works well too, just avoid planting during hot or humid spells. Spacing will depend on the variety you choose, so check the tag and give each plant the room it needs to breathe.  

Growing

Delphiniums are what gardeners affectionately call “Goldilocks plants”, they like things just right. Full sun, protection from strong winds, and fertile, humus-rich soil with excellent drainage are keys to success. They also love manure mixed into the soil to enrich their growing conditions. 

Their height is both their greatest asset and vulnerability. Because Delphinium flower stalks have hollow centres, they break easily if they’re exposed to the wind. Planting them in a sheltered spot is genuinely important. Once plants reach about 12 inches tall, stake each flower spike individually, or place a tomato cage around a clump early in the season before it’s needed. It’s much easier to stake proactively than to rescue a snapped stem after the fact.

Delphiniums are hungry plants and will perform best when fed generously. A dose of fertilizer, compost, or well-rotted manure in both spring and summer keeps them healthy and productive throughout the season.

Finally, don’t overlook dividing. Each spring, simply dig up the plant and cut the root ball in half. Now you have two plants for your border, or one to keep and one to share!

The Show

All that care pays off in late spring and early summer, when Delphiniums put on one of the most spectacular displays in the garden. Tall, densely packed spikes covered in richly coloured blooms rise above the border like beacons. Bold, beautiful, and completely unforgettable. 

Once the first flush of flowers begins to fade, and before the blooms turn to seed pods, cut the spent spikes back to just above the foliage. This encourages the plant to produce a second, smaller flush of blooms later in the season and extends the show! As the old foliage fades, trim it away to allow the fresh new growth to replace it.

Inspiration

There are plants you fit into a garden, and then there are plants you plan a garden around. Delphiniums belong firmly in the second category. Their height, colour, and presence make them one of the most inspiring and rewarding perennials a gardener can grow.

Stop by Eising Garden Centre to see what Delphinium varieties we have available this season. Our team is always happy to help you find the right fit for your garden and set you up for success. 

If you think a small space and a small garden are limiting when it comes to shrub choices, think again! Colour and texture, structure and seasonal interest are all available in many small shrubs. Whether you’re looking for beautiful blooms or evergreen foliage, you’ll love what our favourite small shrubs have to offer!

Follow the 5 links for more on our 5 favourites!

My Monet Purple Effect Weigela - Weigela florida

A deciduous shrub that’s deer resistant, colourful and low growing. This plant checks lots of boxes!! Variegated mint green and cream foliage with purple tones and pink blossoms, it makes a great companion to perennials, and as an edging plant. My Monet Purple Effect Weigela grows 18” to 2 ½ feet tall and wide in partial or full sun.

Little Gem Spruce - Picea abies ‘Little Gem’

This compact evergreen has dark green needles, making it attractive all year round. Its pyramidal shape makes it a great choice as an accent feature or in a border. It’s drought-tolerant and requires little care, making it a very appealing low-maintenance choice! Little Gem reaches a mature height of 10” to 1’ and a spread of 1’ to 2’. Plant this shrub in full sun.

Blue Star Juniper - Juniperus squamata ‘Blue Star’

Sun-loving and slow-growing, Blue Star Juniper graces the garden with steel blue evergreen foliage that’s a beautiful contrast to many plants. It’s also drought-tolerant and requires very little pruning, making it an easy to care for naturally small shrub. Growing 1 to 3’ tall and 1 ½ to 3’ wide, its shape makes it great as ground cover or as an edging plant.

Bluebeard - Caryopteris

Classified as a shrub or as a woody perennial, either way, it deserves to be on this list. Bluebeard loves full sun and grows anywhere from 2 to 4’ in a compact mound. Sweetly scented and long blooming, it attracts all the pollinators: bees, butterflies and hummingbirds. Bluebeard foliage and blooms come in various colours depending on the variety, so it’s easy to fit into your landscape plans.

Inkberry Holly - IIlex glabra

Native to North America, Inkberry has lots to love. It looks similar to Boxwood and can be trimmed to shape, but this slow-growing evergreen also forms a tidy mound, and it blooms in the Spring! It will grow in full to part sun, and smaller varieties reach 3 to 4’ high.

While this list contains 5 of our favourites, we have lots more to offer in the garden centre. Come by and take a look! Discover how growing small shrubs in containers or small spaces adds beauty and texture, enhancing your garden bed, patio or balcony.

TIP: April and May are the best months to plant shrubs in Southern Ontario.

Let’s face it, summers are short and when we invest in plants we all want annuals and perennials that are long blooming. Flowers that last the duration of the summer are ideal! To achieve this, there are a few things to consider like: the plants you choose, good soil, and the amount of sun the flowers will get. When you come into Eising Garden Centre we can help you find sun or shade loving plants, and soil for your hanging pots, planters or garden beds, but to get started you’ll find some of our favourite plants listed below. First, a little plant primer that will help you make decisions.

Annual? Perennial? What’s the Difference?

Annuals and perennials are in separate areas of the greenhouse because they are plants that we will treat differently in the garden. 

Here is the best way to remember the difference:

• Annual plants are planted every year, annually, as they will not survive the winter
• Perennial plant’s roots survive the winter and the plant will regrow each Spring

It’s good to know the difference, right? Now you know what to expect from the plants you buy!

Because Annuals and Perennials are in separate areas of the greenhouse, you might think that the two don’t mix in the garden, but they absolutely do. For example, Perennials can make a great backdrop for Annuals. Or, a well placed pot of Annuals amongst Perennials or shrubs can fill in a gap, or bring a pop of colour once other blooms have faded. Using Annuals, Perennials and Shrubs together can really maximize the beauty in your space! 

If you’re not sure where to start, here are some of our favourite sun loving flowering plants that are easy to grow and long blooming!

Annual Flowers

• Petunias are one of the most popular blooming annuals for many reasons - there are a wide variety to choose from, they have a wonderful scent, they’re easy to grow and they bloom from Spring until frost.
• Zinnia flowers are low maintenance, fairly drought tolerant, come in many bright colours, will also bloom continuously from Spring until frost, and will attract butterflies to your garden! All things considered, they are one of the best annuals to grow. 
• Geraniums are great for containers, hanging baskets, or as bedding plants and come in a variety of leaf shapes and bloom colours. Another reason why these Annuals are so popular is that they are easy to grow and will keep producing flowers late into the Fall.
• Marigolds come in vibrant colours and are another no-fuss Annual that’s tried and true. These long lasting flowers will also attract butterflies, bees,  lady bugs, and other beneficial insects making them very good companion plants in any garden but especially your vegetable garden.
• Cosmos will bloom from late Spring into Fall especially if you remove dead flowers. In return, these colourful, daisy-like flowers will attract pollinating insects as well as birds. Cosmos are also fairly drought tolerant making it a delightful and easy to grow Annual.

Perennial Flowers

• Salvia have spikes of flowers that are long blooming, on plants that are easy to grow, and drought tolerant once they are established. These low maintenance plants will attract butterflies, bees and hummingbirds, and are deer and rabbit-resistant.
• Coreopsis is another drought tolerant perennial that will bloom summer through fall. Flowers are daisy-like and come in vibrant shades of yellow or red.
• Coneflower or Echinacea is a daisy-like flower that is drought-tolerant and long blooming. These sturdy plants have flowers in a wide range of colours from chartreuse to pink, orange, red, and yellow. They come in a range of blossom shapes which make them even more intriguing. If that wasn’t enough, they are also loved by birds and pollinators!
• Rudbeckia, or Black-Eyed Susan are classic perennials that liven up any garden with their sunny colours ranging from yellow to bronzy orange. This durable plant is popular because it is drought-tolerant, pollinators love it, and it’s long blooming.

While most annuals provide a continuous succession of flowers, perennials tend to bloom for two to six weeks. Many perennials will bloom, rest, and then rebloom if you cut off, or deadhead, any spent flowers. A little tender loving care for your annuals and perennials throughout the summer will help blooms last as long as possible. We’ll cover that in our next blog!