Munk’s Rhubarb: A Bold European Perennial for Cool Climate Gardens
If you’re looking for a dramatic foliage plant that can handle cooler climates and add some European alpine flair to your garden, you might want to consider Munk’s rhubarb (Rumex alpinus). This robust perennial brings bold, architectural leaves and interesting flower spikes to the landscape, though it comes with some important considerations for North American gardeners.
What is Munk’s Rhubarb?
Munk’s rhubarb is a herbaceous perennial forb that originally hails from the mountainous regions of Europe, particularly the Alps. Despite its common name, it’s not actually related to culinary rhubarb, though it does share some visual similarities with its large, impressive leaves. This hardy plant can reach 3-4 feet in height and produces distinctive spikes of small, reddish flowers that add vertical interest to the garden.
Where Does It Grow?
As a non-native species, Munk’s rhubarb has established itself in limited areas of North America. Currently, you’ll find it growing in Nova Scotia, Maine, and Vermont, where it has naturalized and reproduces on its own in the wild. The plant thrives in cooler climates that remind it of its European alpine origins.
Should You Plant Munk’s Rhubarb?
The decision to grow Munk’s rhubarb depends on your gardening goals and philosophy. Here are some factors to consider:
Reasons You Might Want to Grow It:
- Bold, architectural foliage creates dramatic visual impact
- Thrives in cool, moist conditions where many plants struggle
- Attracts pollinators with its flower spikes
- Low-maintenance once established
- Adds European cottage garden charm
Reasons You Might Want to Skip It:
- As a non-native species, it doesn’t support local ecosystems as well as native plants
- Can self-seed and spread in favorable conditions
- Takes up significant space in the garden
- Limited wildlife benefits compared to native alternatives
Native Alternatives to Consider
If you’re drawn to Munk’s rhubarb’s bold foliage but prefer supporting native plants, consider these alternatives:
- Wild ginger (Asarum canadense) for large, heart-shaped leaves
- Mayapple (Podophyllum peltatum) for umbrella-like foliage
- Native dock species (Rumex orbiculatus) for similar flower spikes
How to Grow Munk’s Rhubarb Successfully
If you decide to grow Munk’s rhubarb, here’s what you need to know:
Growing Conditions:
- Climate: Hardy in USDA zones 3-7, perfect for cooler regions
- Light: Partial shade to full sun, though it appreciates some afternoon shade in warmer areas
- Soil: Prefers moist, fertile, well-draining soil
- Water: Consistent moisture is key – don’t let it dry out completely
Planting and Care Tips:
- Start from seed in spring, sowing directly in the garden
- Space plants 2-3 feet apart to accommodate their mature size
- Keep soil consistently moist, especially during dry spells
- Mulch around plants to retain moisture and suppress weeds
- Remove flower spikes if you want to prevent self-seeding
- Divide clumps every 3-4 years to maintain vigor
Garden Design Ideas
Munk’s rhubarb works best in specific garden settings:
- Cottage gardens where its informal, robust nature fits right in
- Woodland edges or partially shaded borders
- Rain gardens or areas with consistent moisture
- As a specimen plant where its bold foliage can be appreciated
- Naturalized areas that mimic European alpine meadows
The Bottom Line
Munk’s rhubarb is an interesting plant that can add European flair to cool climate gardens. While it’s not native to North America, it’s currently not considered invasive either. If you choose to grow it, do so responsibly by preventing excessive self-seeding and consider balancing it with native plants that better support local wildlife. Whether you choose this European alpine plant or opt for native alternatives, the key is creating a garden that thrives in your specific conditions while supporting the broader ecosystem.
