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. 

By: Ava Green

One of the best things about living in southern Ontario is the beautiful show our deciduous trees and shrubs put on each fall. 

Autumn is also the perfect time to plant trees, shrubs, and perennials. The sun is less intense, temperatures are slightly cooler, and with regular, deep watering, the plants are less prone to transplant shock, ensuring a successful planting. 

As the leaves begin to change, they mark the arrival of autumn, a season full of colour and celebration. If fall is a special time of year for you, our staff have handpicked their favourite deciduous trees and shrubs with the most stunning seasonal displays. Here are their top recommendations.

Autumn Blaze Maple

Botanical Name: Acer x freemanii 'Jeffersred'

This tree is a cross between the fast-growing Silver Maple and the showy Red Maple - two very popular trees! 

Autumn Blaze will provide a display of colour throughout autumn by starting earlier and lasting longer than most other trees. It’s large, with 5-inch leaves that begin by turning red at the top, then eventually shades of red and orange cascade down the length of the tree. 

Even in the winter, this is a beautiful specimen because its shape is so symmetrical.

Seven-Son Flower

Botanical Name: Heptacodium miconioides

Considered a small tree or large shrub, Seven-Son Flower is popular for its year-round beauty! 

Growing to a maximum of 6.1 metres (20 feet) tall and 3 metres (9.8 feet) wide, the leaves of this plant change from spring to summer, making it an interesting specimen plant in the garden. 

The biggest attraction is the fragrant white blooms it produces late in summer, which are highly attractive to hummingbirds and other pollinators. As the blooms fall, they leave behind pink sepals, so it looks like it’s in bloom all over again!

Its unusual bark makes this tree beautiful year-round, but especially in the winter.

Washington Hawthorn

Botanical Name: Crataegus phaenopyrum

Leaves that turn vibrant shades of orange, purple or scarlet red in the fall are just part of the beauty of this small tree.

This is another specimen with year-round interest. In early spring, reddish-purple leaves emerge, which eventually turn dark green, followed by graceful white flowers. After its fall show, it produces bright red berries that last for most of the winter.

Maturing at 8 to 9 metres (25-30 feet) tall, Washington Hawthorn is also an important nectar plant for pollinators and provides food for birds in the winter.

Barberries

Botanical Name: Berberis thunbergii

Depending on the type of Barberry these deciduous shrubs can grow ½ to 3 metres (1-10 feet) tall and have varied shapes and features as well. For example:

• Barberry, Concorde (Berberis thunbergii 'Concorde')forms a nice globe when it's mature. Leaves start out red and gradually turn a deep, dark purple as they mature.
• Barberry, Ruby Carousel (Berberis thunbergii 'Bailone') is a compact variety with vibrant, ruby-red foliage.
• Barberry, Rose Glow (Berberis thunbergii 'Rose Glow') which matures to 1 to 1 ½ metres (3-5 feet) tall, starts out with a combination of green, white, and deep rose-red foliage in the spring. In the fall, it produces bright red berries that persist into winter.

Beautyberry, Pearl Glam

Botanical Name: Callicarpa 'NCCX2'

While many Beautyberry are showy in the fall, Pearl Glam is an upright, small shrub that has all-season interest. Its dark purple foliage emerges in the spring that lasts until frost. 

In late summer it’s adorned with white flowers which attract butterflies and bees. After blooming it produces hundreds of beautiful violet-purple berries which last long after the leaves have fallen.

Crepe Myrtle, Cherry Mocha

Botanical Name: Lagerstroemia 'Cherry Mocha'

Another small ornamental deciduous shrub with an upright growing habit, Cherry Mocha Crepe Myrtle has decorative appeal in every season.

Burgundy coloured stems with semi-glossy burgundy leaves makes this plant stand out. To add to that, new growth at the tips starts out glossy, deep red. If that’s not enough, in late summer and early fall, the blooms on this cultivar are large, cherry-red flowers which stand out from the burgundy foliage. Its flowers late in the season provide important food for bees. After flowering, green seed pods provide extra interest.

Note: Have you ever wondered why leaves on trees and shrubs change each fall? Here’s a simple explanation. During the long, sunny days of summer, trees and shrubs produce plenty of chlorophyll - the food needed to keep the leaves green. In autumn, as the days grow shorter and temperatures are cooler, there is less chlorophyll produced and the plant breaks down residual chemicals on the surface of the leaves which produces shades of red, orange and yellow.

You’ll find more information in our handy Eisings online Plant Finder!

What’s the best way to brighten up your garden? Add lots of annual flowers in the Spring! Here in Southern Ontario, the May holiday weekend is usually safe from frost - and go time for planting tender annuals!

At Eising Garden Centre, you’ll find a wide array of beautiful annual blooms. Here are ten of our sun-loving favourites to try.

Cosmos

Zinnia

Calendula

Marigold

Amaranth

Portulaca

Salvia

Geranium

Petunia

Dahlia

Sunshine + Food + Hydration = Success

All of these annuals thrive in full sun and will reward you with even more blooms when given consistent water and fertilizer.

Adding a continuous-release fertilizer to your soil at planting time—or feeding weekly with a balanced, water-soluble fertilizer—makes it easy to keep your garden thriving all summer long!

*TIP: Check our handy Plant Finder for more details! https://plants.eising.ca/11110015/