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Brunnera macrophylla Jack Frost Siberian Bugloss, False <br /> orgetMe Not <br /> urchased from Plant Truck Sale 4/9/2022 Planted <br /> This hardy perennial has proven over the last decade to be a reliable, beautiful and popular <br /> perennial for shade gardens nationwide. It was first discovered as a non-induced mutation of <br /> Langtrees in the greenhouses at Walters Gardens, where it's considered to be one of the very <br /> best introductions in their 65-year history. <br /> Jack Frost has opened up all new possibilities for shade gardeners, giving them something new <br /> to complement the hostas, ferns and lungwort already in their gardens. Many retailers have <br /> reported that customers come in the store looking for hostas, but leave with a load of brunnera. <br /> It's a woodland perennial that naturally prefers loose, organic, moist, but well-drained soil in the <br /> landscape. Its leaves are intricately detailed with a crackle-like silver finish and deep green <br /> veining, and their fuzzy texture makes it less favorable to deer and other pests. Tiny, baby blue, <br /> forget-me-not type blossoms are held above the foliage in spring. <br /> Growers at Walters Gardens favor Jack Frost because it's proven to be more heat tolerant than <br /> older cultivars and is a vigorous grower. There are three main keys to growing Jack Frost <br /> successfully: consistent moisture, shade and using a preventative fungicide drench when <br /> transplanting into containers. <br /> Wonsistently moist, well-drained soil is essential. Don't let this plant dry out, but don't overwater <br /> it either. On a scale of 1 to 5, we water our plants well, dry them down to level 3, then water <br /> them again. Dry soil leads to scorched foliage, whereas wet soil invites root and crown rot. Roots <br /> should be tan to white in color. <br /> • While they can handle short periods of sun if provided with adequate moisture, it's tough <br /> to overshade these plants. Too much direct sun will cause them to burn. Brunnera fits <br /> easily into greenhouse production alongside hostas and other shade plants. <br /> • Preventative fungicide drench After transplanting plugs into larger containers, we <br /> recommend using a preventative fungicide drench of thiophanate methyl and etridiazole <br /> (commonly sold as Banrot). Since fungal diseases are difficult to treat, we prefer to work <br /> proactively with this preventative drench. <br /> • Growing media Jack Frost grows well in a standard mix of bark, peat and perlite. As long <br /> as you use a loose, not heavy, mix that allows good drainage, you should have good <br /> success. We recommend a soil pH of 5.5 to 6.0 for plugs and 5.8 to 6.3 in containers. <br /> • Brunnera are not overly heavy feeders, especially at the rooting stage. Growing these <br /> plants too lean will result in yellowing on the leaves. <br /> • • Growing Jack Frost cool and slow will result in the highest quality finished plants. When <br /> rooting plants in spring, maintain a temperature of 65F (18C) and then drop to 55-65F (12- <br /> 18C) to finish. When overwintering, don't let the soil drop below 35F (1 .6C), remove the <br />