Often seen as a mere weed, butterfly bush can truly shine in a garden. This resilient flowering plant deserves more appreciation for its beauty. In the right setting, it creates a stunning display.
True to its name, it attracts numerous pollinators due to its nectar-rich flowers. A few years ago, I planted a dwarf variety, 'Royal Purple', in an old terracotta pot on my sun-drenched balcony in London. Paired with vibrant orange dahlias and soft yellow cosmos, it transformed the space into a lively habitat buzzing with insect activity.
If you're after low-maintenance shrubs that thrive with minimal care and add a splash of color, growing butterfly bush in pots is a fantastic choice. Here's a guide on nurturing this hearty plant.
Growing Butterfly Bush in Pots
For enduring color, butterfly bush is hard to surpass. These shrubs flourish in bright sunlight and can adapt to less-than-ideal soil conditions.
While it's simple to grow butterfly bush in containers, there are a few essential guidelines to consider. Here are some insights I've gathered over my decade-long gardening experience.
Container Gardening Tips for Butterfly Bush
Start with a large pot, ideally 12 to 16 inches in diameter, ensuring it has adequate drainage holes. Ample space allows the plant to thrive without needing repotting for a couple of years.
Fill the pot with potting mix combined with grit or perlite to maintain drainage. While butterfly bush can tolerate poor soil, using quality potting soil will help establish your shrub well.
Consider using organic potting soil from Whitney Farms, available at Walmart.
Since these are sun-loving shrubs, position your container to receive at least six hours of direct sunlight daily. Most species of butterfly bush are hardy down to zone 5, so winter protection isn't usually necessary.
After planting, deep watering is advisable. While established butterfly bushes are drought-resistant, young plants require consistent hydration in their initial weeks.
Maintaining Butterfly Bush in Pots
During the summer, avoid letting your butterfly bush pots dry out completely, as this can harm your plants. Check your containers daily in July and August, feeling the soil to see if they need watering.
Typically, there's no need to fertilize butterfly bushes in garden beds, as they can draw nutrients from the soil. However, when grown in pots, a monthly application of flower feed during the growing season can be beneficial.
You might try an organic bloom booster fertilizer from Espoma, available on Amazon, to enhance flowering.
When it comes to pruning, butterfly bush can be trimmed in late winter or early spring, after the last frost but before new growth starts. Remove any dead or damaged stems and thin out branches for better air circulation.
Best Butterfly Bush Varieties for Containers
For container gardening, opt for compact or dwarf varieties that stay under five feet tall. One standout is 'Royal Red', featuring stunning magenta-purple flower spikes. It pairs wonderfully with bold summer annuals.
Another great choice is the dark purple 'Midnight Butterfly', available from Nature Hills.
Consider 'Lo & Behold Blue Chip Jr.', a low-growing, sterile cultivar perfect for pots. It blooms for an extended period and won't self-seed, ideal for those concerned about invasiveness.
You can also find the 'Pugster Pinker' butterfly bush from Proven Winners via Amazon, which reaches a maximum height of three feet. This compact option is perfect for smaller gardens.
Are Butterfly Bushes Invasive?
Yes, some varieties, such as Buddleia davidii, can be invasive and are often found in urban areas. Fortunately, newer cultivars like the 'Lo and Behold' series are bred to be less aggressive and sterile, making them suitable for pot cultivation.
Most butterfly bush plants are hardy enough to withstand winter conditions without special care. Just monitor newly planted specimens in their first year, as they may benefit from being moved to a sheltered spot during the cold months.
For more container plant ideas, check out our guide on growing star jasmine in pots and fill your space with fragrant blooms.
Essential Gardening Items
Ruby Chip Butterfly Bush
This butterfly bush thrives from zone 5 and reaches a maximum height of 3 feet, making it perfect for smaller yards.
Yardwork Utility Gloves
These gloves offer protection while planting and pruning butterfly bushes.
Myrtlewood Etched Planter
Ideal for growing pink, purple, and white butterfly bushes, this planter from Gracia Oaks will enhance any outdoor space.
