💙 Alexander’s Great Brunnera

What it looks like

Why this variety

Alexander’s Great is the brunnera for gardeners who looked at Jack Frost and thought, bigger. Its leaves are huge — up to 10 inches across — and heavily silvered, so a mature clump reads as a pool of frost in a shady bed rather than a polite accent. It was selected for vigor as well as size: where some silver brunneras sulk in heat or dry spells, Alexander’s Great grows on, building a bold, weed-smothering mound that holds its looks from spring flowers through fall.

The trade-off for that size is appetite — for moisture, for rich soil, and for room. Do not wedge it into a dry corner and expect silver; give it leaf-mold soil that stays damp, deep mulch, and space to spread to 2 feet or more, and it will reward you with the most architectural foliage in the shade garden. The spring flowers are the same sky-blue forget-me-not sprays as the rest of the genus, but here they are almost beside the point: the leaves are the show.

If you are new to choosing between cultivars, the Varieties Matter guide explains why the name after the plant matters as much as the plant itself. Alexander’s Great is a perfect example: it is not just a brunnera in the abstract, it is a brunnera with a specific job, a specific history, and specific strengths.

Florida honesty, stated plainly: brunnera is a North Florida shade trial, not a statewide promise. It wants cool, moist, shaded woodland conditions, and Florida heat and humidity are not its home weather. In North Florida, plant it in deep shade with afternoon protection, in soil that never dries out, and treat a thriving clump as a triumph. South of the Panhandle, expect scorch and short life, and choose a heat-proof shade plant instead.

How to grow

Plant in spring or fall in rich, moist soil in part to full shade — brunnera is a woodland plant that wants leaf-mold soil, consistent moisture, and protection from hot sun. Work worm castings and compost into the bed at planting, mulch deeply, and site it where the soil stays damp. It tolerates dry soil better than some shade plants once established, but ‘better’ does not mean ‘dry’: in sun or drought it scorches, and its silver leaves show scorch plainly.

Set plants 18-24 inches apart in soil with a pH around 6.0-7.0. Work worm castings into the bed at planting and mulch to hold moisture. A well-fed brunnera plant rewards that care directly: steadier growth, better bloom, and a show that actually shows up.

Water & feeding

Keep soil consistently moist — brunnera scorches in dry soil and hot sun, and its silver leaves show damage plainly. Water at the soil line, mulch deeply, and feed lightly: castings and compost at planting plus a spring top-dress. In a dry spell, water is the care program; a brunnera that dries out does not bounce back to silver that season.

Common problems

• Scorch in sun or drought — browned silver leaves; the fix is shade, moisture, and mulch, applied before damage, not after.
• Slugs and snails on foliage in wet weather — pick at dusk and keep mulch pulled back slightly from crowns.
• Crown rot in waterlogged soil — brunnera wants moist soil, not standing water; improve drainage and do not plant where rain ponds.
• Self-seeding in happy conditions — seedlings appear freely; deadhead if you do not want them, or welcome them as free plants.
• Short life in hot climates — heat shortens brunnera life; in warm zones, treat it as a shade trial with soil that never dries out.

Harvest

Cut a few sprays of forget-me-not flowers for small spring bouquets, when blooms are fully open — brunnera flowers last a few days in water and suit tiny, woodland-style arrangements. The foliage is the longer harvest: silver leaves last all season and can be cut sparingly for foliage arrangements without harming the plant. Deadhead if you do not want seedlings, divide congested clumps in spring or fall every few years, and leave the foliage standing over winter where it is evergreen enough to shelter.

Saving seeds

Alexander’s Great is a named cultivar, so seed saved from it won’t come true — propagate it by division instead. The Saving seeds section of the Brunnera guide covers seed for the straight species.