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Tuesday, July 14, 2020

A closer look at exotic "cold hardy" flowers

If you've followed along this blog for a while, you know I'm all about foliage over flowers. I don't like to rely on blooms to bring color to the garden (that's too much pressure to perform!) but there are some exceptions! 


Southern magnolias are a staple in the south (and they're native). The foliage alone gives them plenty of worth in any landscape (I can't think of another tree that stays green all year long with beautiful, glossy leaves). The leaves take a step back in late spring and through summer when the giant flowers open. We're talking bold, white blooms, 6 inches across! The flower parts look pre-historic, and they actually ARE pre-historic. It's believed the first flowers to ever exist looked like magnolias! Maybe that fact explains why these look so unusual up close! If you live in zone 7 or warmer, you definitely should consider this plant for your garden! 








Passiflora caerulea (aka Hardy Passion Vine) is another staple to the south and so beautiful. This species is actually native to South America, but if you're looking for a North American native, P. incarnata is a perfect choice! I've personally never had luck with P. incarnata, but caerulea has proven to be marginally hardy. During "zone 8" winters, P. caerulea is actually evergreen. These plants can become a bit "weedy" in warmer climates, but the flowers are definitely unlike any weed! 






 Plumeria is going to get a separate post entirely because in my opinion, it's the easiest tropical plant you can grow in a pot up north. Although they are far from cold hardy and will melt in below-freezing temperatures, they are very drought tolerant. They go dormant in the dry season in the tropics which makes for easy storage up north! Plumeria love hot summers and will not bloom well if summer afternoons don't regularly get into the 80s F (30s C). Typically a branch will send a big head of blooms every other year. Most of my plumerias have enough branches to bloom each season, but some years will have more bloom heads than others. The fragrance is unbelievable and instantly sends me to Hawaii. A must-have!





American Wisteria is a beautiful option. It's more behaved than Japanese wisteria, stays more compact, and blooms a second time in the summer! The blooms aren't quite as dramatic as the Japanese species, but it's a small tradeoff for a much more responsible wisteria! 


A few randoms... Enjoy! 














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