Common Names | Bugbane, baneberry, white cohosh, snakeberry, doll’s-eyes |
Botanical Name | Actaea |
Family | Ranunculaceae |
Plant Type | Herbaceous, perennial |
Mature Size | 2-4 ft. tall (7 ft. tall with flowers) |
Sun Exposure | Partial, shade |
Soil Type | Well-drained |
Soil pH | Neutral |
Bloom Time | Summer, fall |
Flower Color | White, lavender |
USDA Hardiness Zones | 4-8 (USDA) |
Native Area | North America |
Toxicity | Toxic to humans and pets |
Actaea (Baneberry) Care
Here are the main care requirements for growing actaea (baneberry):
- Prefers cool, moist soil in a shady spot.
- Needs moderate fertile soil enriched with leaf mold or compost.
- Plant in the spring or early fall; only in early fall in the warmer end of the USDA zone range (7 or 8).
- Do not plant near or under trees that will compete with it for water.
- Tolerates extreme hot and cold weather but prefers cooler temps since excessive heat can stunt growth or scorch leaves.
Light
Actaea or bugbane prefers partial to full shade and may naturalize in such areas. Plants grown in sunny areas tend to stay smaller. The gentle rays of the morning sun are ideal, providing plants with enough energy to produce prolific blooms without scorching the vulnerable dark foliage.
Soil
A rich soil amended with ample amounts of leaf mold, rotted manure, or compost is best.
Water
Do not let actaea plants dry out during the growing season. While they do not like boggy conditions, they need about one inch of water each week. Drought-stressed plants are quick to wilt, and plants grown in dry conditions will come back smaller in subsequent seasons.
Temperature and Humidity
Bugbane prefers moderate temperatures; areas of high heat will slow its growth, and the sun’s heat can scorch the foliage. Keep the plant in a cooler, shaded area. This plant isn’t picky about humidity when planted in typical growing zones.
Fertilizer
If you are adding organic matter to the soil each season, you will not need to add additional fertilizer.
Types of Actaea (Baneberry)
There are more than 30 species of Actaea. Actaea racemosa, commonly called black cohosh, is native to eastern North America from Ontario south to Georgia and west to Missouri and Arkansas. Indigenous people and early European settlers historically used this variety to treat ailments such as muscle and joint pain, fever, cough, pneumonia, sluggish labor, and menstrual irregularities. Actaea was reclassified from Cimicifuga to Actaea. It was also used as a bug repellent, hence its common “bugbane” name. Common baneberry cultivars include:
- ‘Hillside Black Beauty’: Stems up to 7 feet tall, with white flowers that seem to hover above dark purple foliage
- ‘Brunette’: Dark purple foliage and white flowers, more sun tolerant than ‘Hillside Black Beauty’
- ‘James Compton’: Dark foliage and white flowers on a 3-foot plant for the middle or front of the border
- ‘Misty Blue’: Bluish-green foliage; white flowers eventually give way to red berries; the earliest spring bloomer
- ‘Pink Spike’: Bronze foliage and pink bottlebrush flowers
Pruning
This plant doesn’t need much pruning. Deadhead the tips when they begin to die back. In the fall, cut the plant down to the ground. It will pop up again with the spring thaw.
Propagating Actaea (Baneberry)
Actaea can be grown from seeds or division. If you choose division, divide plants in the fall. Take large divisions, turning a mature clump into two or three plants, which will help the new plants establish quickly.
If planting bare-root bugbanes, place the crown one inch under the soil’s surface to ease transplant shock. Gardeners prefer potted plants over bare-root where available. Here’s how to properly propagate actaea:
- In the fall, dig up the entire clump.
- Divide your plant into sections using a sharp, sterile instrument. Ensure each clump has roots and foliage.
- Pot each new section in a well-draining container and return one to the original spot.
- Place pots in a shady location and water regularly. Ensure the plants do not dry out or get waterlogged.
How to Grow Actaea (Baneberry) From Seed
Growing this plant from seed is a laborious process, but it can be done.
- Start by keeping the seeds at a constant temperature of about 60 degrees Fahrenheit for two months.
- Then, cold-stratify the seeds by placing them in the refrigerator for another two months.
- Sow the seeds in small containers indoors at the end of that period.
- Keep them lightly watered, and place the container in a warm area.
- Remember, it can take up to a year for the seeds to germinate.
Potting and Repotting Actaea (Baneberry)
Baneberry plants can grow in containers, although dwarf varieties are better suited for growing in pots. Since actaea can grow large, use larger pots with ample drainage holes. Pots can expose the plant roots to colder temperatures, bringing these plants indoors to winter.
Overwintering
Bugbane needs a dormant period, such as cold winter weather, to help it grow robust again in the spring. Younger plants might benefit from a layer of mulch during the coldest part of the season.
Common Pests and Plant Diseases
Actaea is often called “bugbane” because it is the bane of bugs—they don’t go near this plant. Root rot is possible if the plant sits in soil holding water. Remedy soggy soil by working pumice or sand into the soil.
If you encounter orange spots on the leaves, they could be rust spots. Rust spots are a type of fungus, and many ways to treat them include neem oil, baking soda, or commercial fungicides. To prevent rust spots, make sure to use drip irrigation, which will help reduce the risk of overwatering.
How to Get Actaea (Baneberry) to Bloom
Actaea plants are slow to establish, so do not despair if your new plants do not bloom for the first season or two.
Bloom Months
Actaea typically blooms beginning in summer and continuing through fall,
What Do Actaea’s Flowers Look and Smell Like?
These plants produce small white, creamy, or lavender-hued blossoms, bottlebrush-shaped feathery flowers that can be a foot long. The flowers do not have petals; the fuzzy appearance is because they are composed entirely of stamens. While the lightly fragrant flowers attract butterflies, they are not appealing to rabbits or deer. The flowers have a honey-like, sweet fragrance.
How to Encourage More Blooms
Ensure they have good water; they don’t like to bloom during drought. These plants also need compost-enriched soil and cold weather stratification to spur the plant from dormancy to new growth and good bloom production.
Deadheading Actaea (Baneberry) Flowers
Deadhead the flowers when the blooming period ends. Deadheading prevents the plant from self-sowing or producing more plants in that spot.
Common Problems With Actaea (Baneberry)
Actaea is easy to grow and care for, not needing much beyond a shady spot and regular water. Plant pests avoid this plant since it’s toxic to most insects.
Yellowing Leaves
Bugbane plants are suited for shady areas. When exposed to excessive sunlight, the leaves may become yellowish. Provide this plant cover.
Browning Leaves
Actaea develops brown, drying, or dying leaves if left in the sun. This summer scorch condition progresses from the leaf margins inward, somewhat symmetrically. It also needs an organically rich environment. Plants are more prone to scorch when not given enough water, too much sun, and no shelter from strong winds.
Stunted Growth
Plant growth slows down if it does not have enough water. Ensure the plant has adequately moist but not soggy soil.
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What is the difference between cimicifuga and actaea? Cimicifuga is a synonym for Actaea. Until the 1990s, baneberry and bugbane plants were called cimicifuga plants, but genetic analysis shows they are more appropriately classified as actaea plants.
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What are good companion plants for actaea? Plant actaea beside the cardinal flower (Lobelia cardinalis) to draw butterflies to this shady garden. For a knockout foliage combination, plant the deep-purple-leafed ‘Hillside Black Beauty’ cultivar alongside the chartreuse foliage of ‘Gold Heart’ bleeding heart (Dicentra spectabilis ‘Gold Heart’). Other good companion plants include columbine (Aquilegia), Solomon’s Seal (Polygonatum), and toad lilies (Tricyrtus).
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How do actaea and hostas differ when used in a shade garden? Gardeners looking for drama for their perennial shade gardens often opt for hostas. While some hostas sport showy flowers, blossoms are not the focal point of the hosta. Actaea, by contrast, offers nice foliage and pretty flowers. And if you are looking for something to flower late in the season, actaea blooms later in the year than hosta. Actaea plants are as slow to establish in the garden as hostas, but they are worth the wait.
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How long can bugbane live? When planted in an ideal location, actaea can live for a decade or more.
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