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Whew! I apologize for disappearing for so long. A family member has been ill for several months, and I haven’t had time to post. Things haven’t really calmed down, but I’m going to try to get back in the groove of writing more regularly so, here goes: Let’s talk about new plants for 2015. Or more specifically, new plants that can survive Minnesota’s horrifyingly cold, Zone 4 climate. For those of you who live where it’s even colder, I’ve got a few plants that are hardy to Zones 2 and 3. If you live in much warmer climates, you have the opposite problem. So you’ll want to check to see how much heat the plants I’m talking about can take before you buy them.
You’re probably familiar with the U.S. Department of Agriculture’s Plant Hardiness Zones, which indicate the minimum temperatures in 11 areas across the country. By checking the USDA’s map, you can see whether a plant you’re considering can take your area’s minimum temperature. For example, in Zone 4b where I live, plants need to be hardy to at least -25° F (-31ºC) to make it.
It’s always hard to choose just a few plants to highlight from the long list of new introductions each year. But here are some of my favorites. Before I go on, though, I want to remind you that if you are concerned about the effect of neonicotinoid pesticides on bees, you’ll need to check with sellers before you buy plants. Some retailers have stopped selling plants treated with “neonics” in response to studies suggesting that the pesticides harm bees, particularly honeybees. But this issue is still being sorted out and not everyone is on board. I’ll write more about what’s happening with neonics very soon, so without further ado, here are the plants.
Polygonatum falcatum ‘Tiger Stripes’
Got shade? Try adding some Solomon’s seal ‘Tiger Stripes’ (Polygonatum falcatum) from Plant Delights Nursery to your garden. This variegated selection has pretty cream-colored highlights and grows to about 18 inches tall. Fruit clusters appear in the fall and plants are hardy to Zone 4. Plant Delights is located in Raleigh, N.C., and is known for offering unique plants that are hard to find elsewhere. Orders can be placed on their website.
Cobra lily Saturnus – High Country Gardens
I’ve never tried growing cobra lily (Chasmanthe Saturnus) but I’m going to try now. This South African native bulb offered by High Country Gardens blooms in mid-summer and is hardy to Zone 2. Spikes of fragrant, tubular orange flowers attract hummingbirds. Plants grow to between 3 and 4 feet tall and 2 feet wide and need full sun, which is 6 hours or more.
Toad lily. Trycirtis hatatogisa. Creek-Hill Nursery
Toad lilies are great for our northern gardens because they bloom late in the season and look so tropical. Tricyrtis ‘Hatatogisa’ from Creek Hill Nursery is a lovely Japanese toad lily with orchid-like, purple-spotted flowers on long, arching stems. This plant is not really new, but it is being freshly promoted. Plants grow 18 to 24 inches tall and 12 inches wide and prefer part shade to full shade. Zone 4.
Rosa Above and Beyond™
Looking for a tough, no-fuss rose that’s like no other? Head out to local garden centers and ask for Above and Beyond™ (Rosa ‘ZLEEltonStrack’), the newest rose from local breeder David Zlesak. David gave me this rose to test in my garden a couple of years ago, so I can attest to its hardiness and beauty. Introduced by Bailey Nurseries, Above and Beyond has apricot-colored flowers that open in mid- to late-spring and often rebloom throughout the season. Plants grow 10 to 14 feet tall and about 14 feet wide, which sounds ginormous, but you can easily prune them to be shrubs or climbers. I’ve got mine growing on a south-facing fence. Full sun. Zone 3.
Serious Black clematis – Walters Gardens
I know they aren’t everyone’s cup of tea, but I like black plants. So I can’t resist suggesting Clematis recta ‘Lime Close’, also known as Serious Black™, a nod to Harry Potter fans everywhere. Unlike vining clematis, this new introduction from Walters Gardens offers dark-purple foliage that looks almost black and grows in clumps to about 6 feet tall. Foliage ages to green as the summer progresses and is topped with white flowers with slender petals. (Plan on supporting plants if they get too tall and floppy.) Walters doesn’t sell to the public, but you should be able to find this plant at garden centers. Full sun. Zone 4a.
Baptisia ‘Pink Truffles’ from Walters Gardens
If you like baptisia but wish plants wouldn’t flop over after they bloom in early summer, try Baptisia ‘Pink Truffles’ from Walters Gardens. One of several new varieties bred by Hans Hansen, this false indigo is compact at just 2 ½ feet tall and 3 feet wide and offers delicate, pink flowers. Plants are drought tolerant once they are established and should be grown in full sun to part shade. Zone 4.
Schizachyrium scoparium ‘Twilight Zone’ Walters Gardens
And last but certainly not least, let me point out a really striking grass from Walters Gardens. (Again, this should be available at local garden centers.) Schizachyrium scoparium ‘Twilight Zone’ is a little bluestem that is now widely available after a limited release last year. In addition to its columnar form, this ornamental grass offers silver/purple highlights. Grows to 4 feet tall and 2 feet wide. Full sun. Zone 3.
Most of these plants should be available at garden centers this season, but in some cases you can order directly from the website I’ve provided.
