How to Grow Siberian Bugloss: A Beautiful Perennial for Your Garden

Siberian Bugloss

If you’re looking for a perennial that is both beautiful and easy to grow, Siberian bugloss is the plant for you!

This plant has dark green leaves and vibrant violet flowers that are sure to add some color to your garden.

It grows slowly but steadily, making it a great choice for gardeners of all experience levels.

Botanical Name Brunnera macrophylla
Common Names Siberian bugloss, brunnera, large-leaf brunnera, heartleaf, false forget-me-not
Plant Type Herbaceous, perennial
Mature Size 12-18 in. tall; 18-30 in. spread
Sun Exposure Full, partial, shade
Soil Type Medium moisture, well-drained
Soil pH Acidic, neutral to acidic, alkaline
Bloom Time Spring
Flower Color Blue
Hardiness Zones 3-8 (USDA)
Native Area Asia, Europe

Tips for Keeping Your Plants Healthy

  • If you want your plants to stay healthy, give them a little extra attention during the growing season.
  • Here are a few tips:-Water regularly and deeply, especially during dry spells.-Fertilize monthly with a balanced fertilizer.-Pinch back stems by about half their length in early summer to encourage bushiness.
  • Deadhead spent flowers to prolong blooming.
  • Divide clumps every few years to prevent overcrowding and promote vigorous growth.
  • Siberian bugloss is a beautiful perennial that’s easy to care for and will add color and interest to your garden for many years to come.
  • With its striking blue flowers and lush foliage, it’s sure to become a favorite in any garden. Give it a try today! This post was contributed by Anna Deeds of Gardening Know How.
  • Anna is an avid gardener and former horticulture professional.
  • She is passionate about helping people to learn more about gardening and plants.

Lighting and Temperature

Siberian bugloss grows best in partial to full shade. It will tolerate some sun, but the leaves may scorch if they get too much direct sunlight.

This plant prefers cool temperatures and does not do well in hot, humid weather. It is winter hardy in USDA zones three to eight.


Siberian bugloss grows best in moist, well-drained soil. It will tolerate a wide range of soils, including clay and sand, as long as the soil is not allowed to dry out completely.

This plant does best in acidic to neutral soils with a pH of six to seven.


Siberian bugloss is a heavy feeder and benefits from regular fertilization. Apply a balanced fertilizer monthly during the growing season.

Overfertilizing can cause the leaves to scorch, so be sure to follow the manufacturer’s instructions.


Siberian bugloss does not require pruning, but you can trim back the stems by about half their length in early summer to encourage bushiness.

Deadhead spent flowers to prolong blooming.

Divide clumps every few years to prevent overcrowding and promote vigorous growth.


Water Siberian bugloss regularly and deeply, especially during dry spells.

This plant prefers moist soil and will not tolerate drought conditions.


Siberian bugloss grows 12 to 18 inches tall and 18 to 30 inches wide.

The plant has a clumping growth habit and will spread gradually over time.


The flowers of Siberian bugloss resemble forget-me-nots and appear in shades of blue, violet, or white.

They bloom in spring and are followed by seed pods that open to release their seeds in late summer.

Common Pests & Plant Diseases

Gardeners who are attracted to the delicate blooms of Siberian bugloss may be dismayed to find that the plant is often a target for slugs.

These slimy creatures are attracted to the plant’s leaves, which they puncture with their sharp mouths in order to drink the sap.

This can damage the leaves, causing them to turn brown and wilt. Fortunately, there are a few things that gardeners can do to deter slugs.

First, they can choose varieties of Siberian bugloss that have large leaves, as these are less appealing to slugs. They can also create a barrier around the plants using crushed eggshells or diatomaceous earth.

Finally, they can make sure that the plants are getting enough water, as dry conditions can make the leaves more vulnerable to attack.

By taking these steps, gardeners can enjoy the beauty of Siberian bugloss without worrying about slug damage.

Propagating Siberian Bugloss

Be warned that certain kinds are prohibited from being propagated because they are covered by a formal plant patent.

The best way to propagate plants is to division an established clump into healthy pieces in the spring and then replant them.

The best approach to extend the life of Siberian bugloss, which may be short-lived, is to divide them every three to five years. Use a shovel to remove the entire plant from the ground.

Remove any remaining soil to aid in breaking the cluster into more manageable pieces. Remove any unhealthy or weak roots. Use your fingers or a pair of sharp knives to cut healthy roots into parts.

To prevent them from toppling over once they are planted, reduce the size of your leaves to 6 inches or less. Plant each piece exactly at the same level as your previous plant was growing.

When done correctly, this top way of propagation will result in healthier and longer-lasting plants.

Types of Siberian Bugloss

There are many different cultivars of Brunnera macrophylla to choose from, each with its own unique characteristics. The common name for this plant is false forget-me-not, and it is a member of the borage family.

It is a rhizomatous perennial that is native to Siberia, Korea, and Mongolia. It was introduced into North America in the early 1800s.

B. macrophylla typically grows to a height of 15-20 inches and produces blue flowers in the spring. The leaves are large and have a silvery sheen due to the presence of glandular hairs.

There are also cultivars with variegated leaves that are yellow, cream, or silver. This plant prefers shady areas and moist, well-drained soils. It is relatively low maintenance and does not require much fertilizer.

B. macrophylla is a good choice for gardens that receive partial sun to full shade.

It can be used as a groundcover or in mass plantings. It is also attractive when planted next to bodies of water such as ponds or streams.

What do you do with Brunnera in the fall?

As the weather begins to cool in the fall, many gardeners start to think about putting their gardens to bed for the winter.

However, before you start packing up your gardening tools, there are a few things you should do to prepare your Brunnera plants for the colder months ahead.

First, cut back any brown or yellow leaves, as these can provide a home for disease and pests over winter. Next, remove any dead flowers, and consider dividing your plants if they have become overcrowded.

Finally, give your plants a good dose of fertilizer to help them recover from the stresses of the growing season.

By taking these simple steps, you can help ensure that your Brunnera plants will be healthy and happy come spring.

Is Brunnera easy to grow?

Yes, Brunnera is easy to grow. The form that is a species of Brunnera macrophylla, which has strong green leaves, can be easily accessible. It’s a gorgeous spray of blue flowers, and is a very robust plant.

Additionally, there are a variety of cultivars to choose from Diane’s gold is a golden yellow with leaf and blue flower.

All you really need is to give it moist soil conditions and some dappled sun, and it will flourish.

Because it’s such a low maintenance plant, it’s perfect for beginners or anyone who doesn’t want to spend a lot of time caring for their garden.

So if you’re looking for a beautiful plant that’s easy to grow, Brunnera is a great option.

What plants go well with Brunnera?

The plant Brunnera is a great option for gardeners looking for an eye-catching groundcover. Low-growing and spreading, it is easy to care for and looks beautiful when massed together.

When planning your Brunnera planting, consider adding some companion plants to create an even more striking display. For example, the red leaves of Heuchera are a beautiful contrast to Brunnera’s green foliage.

Or try pairing it with Hosta, Astilbe, or Ferns for a woodland look. Whatever plants you choose, make sure they have similar growing requirements as Brunnera (such as moist soil) so that your planting will be happy and healthy for years to come.

Is bugloss a perennial?

Bugloss (Borago officinalis) is a herbaceous perennial plant in the borage family, Boraginaceae. It is native to the Mediterranean region and has naturalized in many other places.

The leaves are oblong and bristly, and the flowers are small and blue. The seeds are black and have a smooth, hard coat. Bugloss is a relative of the forget-me-not (Myosotis sylvatica), and the two plants resemble each other in both appearance and name.

Both plants have blue flowers, although the forget-me-not’s are slightly larger. The main difference between the two is that bugloss is an annual, while forget-me-nots are perennials.

However, in some areas bugloss can behave like a short-lived perennial, surviving for two to three years. Despite its resemblance to forget-me-nots, bugloss is not typically used as a decorative flower.

Instead, it is grown for its oil, which is used in cosmetics, soaps, and lubricants. The leaves and flowers can also be used to make a tea.

Can I plant Brunnera in the fall?

Brunnera is a beautiful and delicate plant that is typically planted in the spring. However, it is possible to plant Brunnera in the fall, as long as you take a few precautions.

First, it is important to choose a small plant. This plant is typically utilized in large quantities, so a small plant will be easier to manage. Additionally, it is important to choose a location that has well-drained soil.

Brunnera does not tolerate wet or boggy conditions, so a location that stays too wet in the winter could damage the plant. Finally, it is important to water the plant regularly during the first growing season.

This will help the plant establish its roots and prevent it from drying out during the winter months. With a little care, Brunnera can thrive even when planted in the fall.

What do you do with brunnera in the fall?

In the fall, the leaves of brunnera plants begin to turn yellow and die back, signaling that it is time to prepare for winter. Gardeners have a few options for dealing with brunnera plants at this time of year.

One option is to simply allow the plants to die back on their own. Once the leaves have withered away, the stems can be cut down to ground level.

Another option is to cut the plants back gradually over the course of several weeks. This can help to minimize shock and encourage new growth in the spring.

Whichever method you choose, be sure to remove all dead plant material from your garden bed in order to prevent disease. With a little care, brunnera plants will thrive for many years to come.

Do you cut back Brunnera in the fall?

Brunnera is a versatile plant that can add interest to your garden in both the growing season and the dormant season. In terms of fall care, you have a couple of options.

If you want to tidy up the appearance of your Brunnera plants, you can cut back the leaves of older, worn-out plants during the growing season.

However, it’s important to refrain from cutting back the leaves in autumn, as they help to protect the plant during winter. Alternatively, you can simply wait until spring to prune your Brunnera plants, when the new leaves are just beginning to appear.

Regardless of when you choose to prune them, always use sharp shears or knives to get a clean cut and avoid damaging the plant. With proper care, Brunnera can be a beautiful addition to your garden for many years to come.

Why are my brunnera leaves turning brown?

Establishing a new planting bed can be a lot of work. Not only do you have to prepare the soil, but you also have to choose the right plants and care for them until they’re established.

One common problem that gardeners face is browning leaves on newly planted brunnera. There are a few reasons why this may happen.

First, it’s important to make sure that the plant is getting enough water. If the soil is too dry, the leaves will start to turn brown.

Second, it’s important to make sure that the plant is getting enough sunlight. If the plant is in too much shade, the leaves will also start to turn brown.

Finally, it’s important to make sure that the plant isn’t being overwatered.

If the soil is too wet, the roots will start to rot and the leaves will turn brown. With a little attention and care, you can help your brunnera plants thrive.

What perennials should not be cut back in the fall?

As the weather begins to cool in the fall, many gardeners begin the process of cutting back their perennials. However, there are some perennials that should not be cut back at this time of year.

Garden mums, anise-hyssop, and red-hot poker are all examples of perennials that need to be protected during the cooler months. If these plants are cut back too early, they may not survive the winter.

Montauk daisies are another type of perennial that should not be cut back in the fall. These plants bloom later in the season, so cutting them back now would prevent them from flowering.

By taking the time to research which perennials should not be cut back in the fall, gardeners can ensure that their plants will remain healthy and beautiful for years to come.

Jessica Miles

Jessica Miles is a writer for Botanique Boutique, a plant and gardening blog. She has always loved plants, flowers, and anything green. When she was younger, she used to watch her grandfather garden and would be in awe of the beautiful flowers he would grow. Now Jessica writes about all things related to plants and gardening - from beginner tips on how to start growing your own plants, to in-depth guides on caring for a specific type of flower or plant. She loves helping others learn about this fascinating hobby, and hopes that her writing will inspire people to get outside and enjoy nature!

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