Siberian bugloss 'Alexanders Great' Brunnera macrophylla 'Alexanders Great' (PBR)

Water

Siberian bugloss prefers to be kept in evenly moist soil, especially during its growing season in spring and summer. Water the plant thoroughly when the top inch of soil feels dry to the touch, which typically means watering once or twice a week, depending on weather conditions and soil drainage. Apply water directly to the base of the plant to avoid wetting the foliage, which can lead to fungal diseases. During the growing season, this may equate to approximately 1 gallon of water per week for an established plant, but always adjust based on rainfall and temperature, as overwatering can be just as detrimental as under-watering.

Light

For optimal growth, the Siberian bugloss should be placed in a location that offers partial shade to full shade. It is particularly well-suited to the dappled light found under canopy trees or on the north side of buildings, where it can receive indirect light without being exposed to the harsh midday sun. Avoid placing it in full sun, as this can scorch the leaves and lead to stress for the plant.

Temperature

Siberian bugloss thrives in temperature conditions that range from around 60 to 75 degrees Fahrenheit, which are common in temperate regions. It can tolerate a temperature dip down to about 20 degrees Fahrenheit, but prolonged exposure to temperatures below this can damage or kill the plant. Ideally, maintaining a mild temperature regime without extreme fluctuations is best for its health and growth.

Pruning

Siberian bugloss benefits from light pruning to remove any dead or damaged leaves and to maintain plant shape. The best time for pruning is in late winter or early spring, just before new growth commences. Prune sparingly to prevent unnecessary stress to the plant; typically, doing so once a year is enough. Removing spent flowers can also encourage additional blooms and prevent self-seeding if desired.

Cleaning

As needed

Soil

Brunnera macrophylla 'Alexander's Great', also known as Siberian Bugloss, thrives in well-draining, moist soil enriched with organic matter. A mixture of garden soil, compost or leaf mold, and a small amount of coarse sand or perlite creates an ideal environment. This plant prefers a soil pH of slightly acidic to neutral, around 5.5 to 7.2.

Repotting

Siberian Bugloss, due to its hardy nature and moderate growth rate, often does not require frequent repotting. It should be repotted or divided every 3 to 4 years to ensure healthy growth and to refresh the soil. Choose a cool, overcast day to minimize transplant stress.

Humidity & Misting

Siberian Bugloss prefers moderate to high humidity levels but is quite adaptable and can tolerate lower humidity if necessary. Aiming for a humidity level of around 40% to 60% is ideal for this plant.

Suitable locations

• Indoor

  Provide bright, indirect light and keep the soil evenly moist.

• Outdoor

  Plant in partial shade; keep soil well-drained and moist.

• Hardiness zone

  3-8 USDA

Life cycle

Brunnera macrophyylla 'Alexander's Great', commonly known as Siberian Bugloss or Great Forget-me-not, initiates its life cycle as a seed, which upon germination in early spring, develops into a small seedling. The seedling gradually matures into a vegetative plant, forming a dense clump of heart-shaped leaves. As it grows, the plant develops a robust root system and prepares for the flowering stage. By late spring to early summer, 'Alexander's Great' produces sprays of small, blue, forget-me-not-like flowers, attracting pollinators. After the flowering period, the plant produces seeds to complete its reproductive cycle. In late autumn, the foliage may die back, with the plant entering a dormant phase over winter, resuming its growth cycle the following spring.

Propogation

• Propogation time

  Spring-Early Summer

• Brunnera macrophylla 'Alexander's Great,' commonly known as Siberian bugloss or false forget-me-not, is typically propagated by division, which is the most popular method for this cultivar. The ideal time for division is in the spring or early fall when the plant is not in active bloom. To propagate by division, carefully dig up the plant and gently separate the clump into smaller sections, ensuring that each new section has a portion of the root system and several shoots. Replant the divisions at the same depth they were originally growing, spacing them about 12 to 18 inches (30 to 45 cm) apart to allow room for growth. Water well after planting to help establish the new plants. This method helps maintain the true characteristics of 'Alexander's Great' since it's a cultivar and seed propagation may not produce plants with identical traits.