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Everyone loves lilacs, right? Or at least, everyone loves the idea of lilacs, which makes a lot of sense; those soft, romantic clusters of flowers with their unmistakable fragrance always add an instant pop of beauty to any garden.
The problem is, traditional lilacs don’t always live up to the dream. They bloom beautifully but briefly. Miss the window, and you’re left with a perfectly pleasant but fairly unremarkable shrub for the rest of the year. And, in warmer USDA Planting Zones, they can be even more disappointing, struggling to flower reliably without a proper winter chill.
As ever, then, plenty of gardeners are on the lookout for something better. Something that delivers that same classic look and scent but without all the annoying little setbacks. Something not unlike a unicorn plant, if we may be so bold as to say so.
Enter stage left, then, the Scentara Double Blue Lilac.
A Dreamy Unicorn Plant
What makes this plant stand out immediately is its ability to rebloom. Unlike traditional lilacs that flower once in late spring and then step back for the rest of the year, this variety produces an initial flush of richly coloured, double blooms, followed by repeat flowering later in the season under the right growing conditions.
That alone changes the entire experience of growing lilacs. Instead of a short-lived seasonal highlight, you get a more extended display that brings color and interest across a much longer window… and what a display!
Yes, the flowers themselves are exactly what you’d hope for: full, layered, and richly coloured in deep blue-purple tones. Each bloom has a more intricate, double form than classic lilacs, giving the plant a fuller, more luxurious appearance even from a distance. Ideal cut flowers, essentially!
Shop This Unicorn Plant Now (Plus Two Alternatives):
Scentara® Double Blue Lilac
This lilac smells every bit as incredible as it looks. No wonder it was named Shrub of the Year in 2025, eh?
Snow White™ Mock Orange
More fragrance-forward than lilac, this mock orange blooms twice yearly and thrives in Zones 4-8.
Summer Snowflake Viburnum
Another fragrant favorite, this promises lacecap flowers from spring through til September for extended garden color.
Naturally, for all its visual appeal, what really elevates this plant beyond the ordinary is the fragrance. Because, just like all good lilacs, Scentara Double Blue Lilac is a feast for the nose as well as the eyes thanks to its sweet, floral, and nostalgic perfume that feels instantly familiar, even if you can’t quite place where you’ve smelled it before.
Planted in the right position, that fragrance doesn’t stay politely contained either. It drifts through the garden on warm air, catching you unexpectedly as you pass, or lingering gently near a seating area where you can actually enjoy it.
‘There are about 15 different species of lilacs found in nature, and Syringa hyacinthiflora is the queen of them all when it comes to fragrance,’ promise the team behind this award-winning shrub.
Credit: Jackan / Shutterstock
Basically, this one boasts the structure and reliability of a modern shrub, the romance of a traditional lilac, and the bonus of extended flowering that feels almost unfair in how generous it is. Which means, for gardeners used to choosing between beauty and practicality, it starts to feel like… well, like a bit of an exception.
Think about it: it’s a unicorn plant that doesn’t just tick one box well, but several. One that keeps on giving while demanding very little in return; just some sunshine, well-drained soil, and 1,700 hours of temperatures below 45°F a year.
And isn’t that really all most gardeners are looking for? We don’t want perfection, just a little reliability. A plant that promises the most reward for the least amount of effort, if we’re being completely honest. And in that sense, this one delivers the goods and then some.
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