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.
For Height, Drama, and Eye-Catching Interest
By Ava Green
Every well-designed garden needs an anchor, something tall and confident at the back that gives the whole planting a sense of structure and depth. While shrubs and trees often fill that role, perennials can also do the job beautifully. The back row perennials below are sturdy, reliable performers that thrive right here in Norfolk County. Plant them at the back of a border or the centre of an island bed as the backdrop that makes everything around them look better.
False Indigo, Baptisia australis
Baptisia is one of those perennials that gardeners discover and immediately wonder why they waited so long to plant it. In late spring, masses of stems are loaded with sweet pea-shaped flowers in shades of indigo blue, soft yellow, white or purple, and butterflies and bees absolutely love them. Once the blooms fade, the plant takes on a handsome, shrub-like form with blue-green foliage that holds its shape nicely for the rest of the season. While it’s slow to establish, it is extraordinarily long-lived, making it a plant you put in once and enjoy for decades.
Grows 3 ft tall and 3 ft wide | Full sun to partial shade | Blooms late spring to early summer
Hollyhocks, Alcea
Few perennials carry the nostalgic, romantic charm of a Hollyhock in full bloom. Their tall, stately spires are covered in large, papery flowers and are available in an irresistible range of colours from soft pastels to rich burgundies and deep purples, to classic white. They have a way of making a garden feel established in their first season, making them a desirable back-row choice.
Grows 2-8 ft tall and 1-2 ft wide | Prefers full sun but will tolerate part shade | Blooms in summer
Joe Pye Weed, Eutrochium or Eupatorium
A native plant that is as ecologically valuable as it is beautiful. Its large, showy clusters of rosy-purple flowers are a magnet for butterflies and pollinators from mid-summer well into fall, long after many other perennials have finished their show. If you want a back-row plant that works hard for wildlife while adding bold colour to the garden, this is an excellent choice.
Grows 4-6 ft tall and 2-4 ft wide | Prefers part sun and moist soil | Blooms mid-summer to late fall
Russian Sage, Perovskia atriplicifolia or Salvia yangii
When the garden fills up with yellow and orange blooms in late summer, Russian Sage arrives with a billowy, airy cloud of lavender-blue flower spikes rising above silvery-grey foliage. It catches the light beautifully and adds a softness that few other plants can match. Drought-tolerant once established and virtually pest-free, it is one of the lowest-maintenance perennials you can grow. Compact varieties are also available if space is limited.
Grows 3-4 ft tall and 3-4 ft wide | Full sun | Blooms mid-summer to fall
Bear’s Breeches, Acanthus Mollis
If you’re looking for a plant that makes a genuine architectural statement, Bear’s Breeches is in a category of its own. Its large, deeply lobed, glossy foliage forms an impressive mound, while dramatic flower spikes shoot three to five feet upward, bearing creamy white snapdragon-like blooms accented with striking reddish-purple bracts. It is bold, sculptural, and unlike almost anything else in the garden.
Grows 3-5 ft tall and 2-3 ft wide | Full sun to part shade | Blooms June to July
Foxglove, Digitalis
There is something undeniably enchanting and regal about Foxglove with its tall spires of tubular flowers freckled and spotted on the inside, nodding gently in the breeze. The colour range is also wonderful, from soft creamy whites and pale pinks to rich purples and deep rose. Many varieties self-seed freely, naturalizing happily in the garden over time. One important note: every part of the Foxglove plant is toxic to people and pets, so it is best planted away from areas where children or animals play. In the right spot, however, it is one of the most beautiful back-of-the-border plants available.
Grows 2-5 ft tall and 2 ft wide | Sun to part shade | Blooms in summer
Goat’s Beard, Aruncus diocus
Despite its stature, this is one of the most graceful and softening plants you can add to a shady border. Large, feathery plumes of creamy white flowers rise above finely divided, elegant foliage, bringing lightness to even the darkest corners of the garden. It is especially effective at softening hard edges, filling bare spots under trees, and providing a lush, natural backdrop for smaller shade-loving plants. Dwarf varieties are available for smaller spaces.
Grows 6 inches (dwarf) to 6 ft tall and 2-4 ft wide | Partial to full shade | Blooms early to mid-summer
Gardener’s Tip:
Removing spent blooms before they go to seed, also known as deadheading, encourages many perennials to produce a second flush of flowers later in the season. It takes only a few minutes and can extend your bloom display by weeks.
Ready to Build Your Back Row?
The team at Eising Garden Centre is here to help you choose the right tall perennials for your space, your soil, and your sun conditions. Stop by and let us help you create a border that looks stunning from front to back, season after season.
By: Dave Zeldon and Ely Schweyer
Spring and early fall are generally the best times for planting trees. It has been found that newly planted trees thrive when exposed to moderate temperatures and rainfall, as they need time to root and acclimatize before the onset of intense heat and dryness of summer or the freezing temperatures of winter.
Now whilst planting different types of trees differ in detail, all trees eventually end up in a hole. But remember not just any old hole will do.
Let’s Get Digging!
1. Some trees are buried too deeply, causing the tree roots to decline in health and condition. We have a whole other article dedicated to transplanting depth if you wish to read more, but here’s the just of it: Poor tree health results in reduced growth rate, atypical leaf size and colour, increased disease susceptibility, and reduced cold hardiness. Always make sure that the root collar flare is visible after planting; if settling occurs, reset the tree to the proper depth.
👉 Note: Many times, homeowners build a raised bed garden around an existing tree in the yard (thus burying the root collar flare) only to find within a year or two their favourite tree now is in decline. Don’t bury that root collar flare!
2. As a general rule, trees should be transplanted no deeper than the soil in which they were originally grown. The width of the hole should be at least three times the diameter of the root ball or container or the spread of the roots in the case of bareroot trees. This will provide the tree with enough worked earth for its root structure to establish itself.
3. When digging in poorly drained clay soil, it is important to avoid 'glazing'. Glazing occurs when the sides and bottom of a hole become smoothed forming a barrier, through which water has difficulty passing. To break up the glaze, use a fork to work the bottom and drag the points along the sides of the completed hole. Also, raising the centre bottom of the hole slightly higher than the surrounding area. This allows water to disperse, reducing the possibility of water pooling in the planting zone.
4. The backfill soil should be a mixture of composted manure and topsoil. The mixture should then be placed in the hole surrounding the tree just to the height of the ball or slightly lower to allow for some settling. Be careful not to compress the backfill soil as this may prevent water from reaching the roots and the roots from expanding beyond the ball.
Jobs well done by the Eising landscaping team!
Standing On Its Own Roots
Young trees should be able to support their own weight when they are transplanted. If the tree is unable to do so, try thinning out the upper branches to reduce wind resistance. If that is not enough, you may have to stake a tree.
Watering Your New Tree
Newly planted trees should be watered at the time of planting. In addition, during the first growing season, they should be watered at least once a week in the absence of a good rain.
👉 Remember: Regular deep soakings are better than frequent light wettings.
We hope these tips can help you encourage the longevity of your new tree! For more information - and trees - visit our Trees & Shrubs section at Eising Greenhouse and Garden Centre. We hope to see you soon!