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For plant fanatics, it is always pretty exciting when organizations and companies start announcing what flowers and shrubs they think will make an impact in the upcoming year. The Garden Club of America announced its 2026 plant of the year back in October, opting for a bright and bold bloom. However, Proven Winners have gone darker and moodier for their perennial pick, and we are totally here for it. With vamp romantic being tipped as a hot fashion trend for 2026 and the much anticipated “Wuthering Heights” movie bringing Victorian angst and unrequited love back to the silver screen, it makes sense that our gardens follow suit. So what makes the perennial plant of the year so fitting? Well, first, its name. Proven Winners picked a gorgeous astilbe cultivar named Dark Side of the Moon (Astilbe ‘Dark Side of the Moon’). Even its name evokes moody, gothic vibes. And then, there is its appearance.
With its dark, glossy burgundy leaves and velvety-looking purple blooms, the Dark Side of the Moon Astilbe packs a punch. It feels classical yet modern at the same time, perfect for both old-fashioned cottage gardens and more modern designs. It grows to around 20 to 22 inches in height, with the flowers reaching up in spikes above the dark sea of foliage below. Having a spread of 24 to 28 inches, the Dark Side of the Moon Astilbe is a fantastic border perennial to add intrigue and depth to your yard. The leaves will appear in spring in a yellow-green hue, then fade to a rich, dark color as we move into the summer months, which is when the stunning flowers bloom.
How to grow Dark Side of the Moon Astilbe
The Dark Side of the Moon Astilbe can be easily grown in USDA Hardiness Zones 4 to 9. Adaptable and tough, you can grow this flower in both sun and shade. It does tend to grow best in full sun in colder climates, but can be damaged in hot sun in warmer locations. It is drought intolerant, so you may want to avoid bringing it into your yard if you live in a dry area. You can grow the Dark Side of the Moon Astilbe in both pots and garden beds, so you may want to keep this cultivar in mind when designing a container garden.
Like most astilbe plants, the Dark Side of the Moon thrives in moist soil, as long as it is well-draining. Once the foliage starts to appear in the spring, increase watering and watch out for any signs of dryness, such as crispy leaves. Give the plant some fertilizer in late spring, as this will help it produce beautiful, healthy blooms throughout the summer months.
In terms of pruning and deadheading, the Dark Side of the Moon is an undemanding plant. Leaving the seedheads on after the flowers have faded can add winter interest in your yard, and the foliage will give the plant protection during cold weather. Tidy it up in spring, and enjoy another year of these gorgeous purple flowers.
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