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Darlingtonia
Darlingtonia  
I am from Germany and a fan.
I got a Darlingtonia in a tree stump (20cm high and 15cm wide) on my balcony facing south. I got it from a facebook contact this spring but it grows great. My question is how do I cover it best over winter time or what can I do so it survives?
Thanks a lot. I appreciate your knowledge.

Answer
Hi Patrick,

Sorry for taking awhile to get back to you.  Very crazy week this week.

Darlingtonia are hardy to USDA zone 8, and possibly zone 7 depending on the exact location of the particular clone you have.  Most Darlingtonia in cultivation are of coastal Oregon descent, so I'm going to operate from that assumption.  That means that your plant can tolerate temperatures down to the low 20's F for brief periods with no harm.  Their hardiness is very similar to most Sarracenia.  Depending on how cold it gets in your particular location, you may need to only bring your plant into a shed or a garage during cold spells if the temperatures are generally above freezing during winter.  You can also put your planter on the ground (avoid soil contact, however.) and wrap it in black plastic for a cold spell.  Bringing it next to your house will help too.

To advise you further I need to know what typical winters are like for your location, and what is the coldest temperatures you get, and for how long at a time.

Good Growing!

Jeff Dallas
Sarracenia Northwest
http://www.growcarnivorousplants.com

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