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 Dave Zeldon and Ely Schweyer
This is the time of year that most garden centres will have on display their wide variety of Amaryllis bulbs, including the evermore popular waxed dipped. These enormous bulbs that are appearing now will be ready to burst into bloom within 4-8 weeks after planting.
Non-Wax Dipped: Planting
All Amaryllis need is a bit of commercial potting soil that should not cover the shoulders of the bulb (try leaving about 1/3rd of the bulb showing above the soil line), with the nose (or narrow end) of the bulb peeping well over the top of the pot. Make sure that you use a well-drained container that is 3-4” bigger in diameter than the bulb itself.
☝️A heavy clay pot will prevent this top-heavy plant from toppling over. To achieve continuous bloom, plant at intervals of two weeks for stunning colour in your home.
Non-Wax Dipped: Care
Once leaves emerge, fertilize once a month with a 20-20-20 water soluble fertilizer for houseplants. Water sparingly and wait for the miracle in a warm sunny room. Sub-irrigation or watering from the bottom of the drip tray will keep the surface soil dry, thus keeping and bulb rot organisms and those pesky fungus gnats at bay.
Non-Wax Dipped: It's Not Done Yet!
When blooming is over, remove the scape (or flower stock) and place the plant in a sunny spot and continue to water. This is to allow the leaves to regenerate the bulb. In springtime, when all danger of frost has passed, bring the bulb outdoors and let it spend its holidays in a shady spot. In some varieties the leaves will die back in September to give the plant a rest for a couple months. Stop watering and store the bulb on its side in a cool place for about eight weeks, when the leaves will once again begin to emerge.
Amaryllis can go 3-4 years without repotting as they don’t mind a little crowding. Try growing a couple of bulbs in larger pots to see if you can get a clump of flowers from the offshoots or babies that will develop after a couple of years.
Or, Try One of These Wax Dipped Bulbs!
Now growing more popular are the care-free waxed-bulb Amaryllis!
Experienced growers and beginners alike love that these waxed bulbs do not need to be planted or watered! Each of these robust bulbs are carefully prepared in festive-coloured wax, allowing you the freedom to place them among your holiday decorations.
Simply keep the bulbs at an ambient room temperature of at least 16C (70F) for beautiful blooms in five to six weeks.
These novelty items are low commitment! Their only fault is their lack of longevity - gardeners don’t get to enjoy them after year as these waxed bulbs were designed to be a one-use throwaway item!
BUT with a little luck and perseverance you may be able to save the bulb for next season after blooming. All you have to do is to carefully remove the wax layer, remove the flower stalk and place the bulb and with its remaining leaves into a pot of good growing media, allowing the leaves to regenerate the food stores in the expired bulb.
If you’re looking for more information – or perhaps, Amaryllis – visit Eising Greenhouse and Garden Centre! Happy Holidays! ✨