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USDA hardiness

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BubikolRamios1
Beiträge: 500
Registriert: 23.05.2016, 20:49

USDA hardiness

Beitrag von BubikolRamios1 » 11.12.2018, 06:49

5...9 i.e. -28... -6 celsius
http://www.missouribotanicalgarden.org/ ... rcode=b932

Can't figure what that means, huge difference, which number is correct ?

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Anagallis
Beiträge: 6106
Registriert: 11.08.2014, 22:59

Re: USDA hardiness

Beitrag von Anagallis » 11.12.2018, 12:35

It means that the plant grows in the USDA zones 5 to 9. Indirectly this means that the plant can stand temperature sdown to at least -26.1°C and that it doesn't usually grow in zones with a climate warmer than USDA 9b.
https://en.wikipedia.org/wiki/Hardiness_zone

BubikolRamios1
Beiträge: 500
Registriert: 23.05.2016, 20:49

Re: USDA hardiness

Beitrag von BubikolRamios1 » 11.12.2018, 12:57

Hmja, doing cross check of some botanical garden glass house list (http://www.botanic-gardens-ljubljana.com/de/rastlinjak)
This section houses mainly tropical plant species requiring high air moisture levels and more or less even temperatures throughout the year.
No idea, if list is valid, why they put hedera .... into it.

Bottom part of that list ordered by assumed temp resistance

Code: Alles auswählen

"eriobotrya japonica"	"-17,70"
"Ophiopogon japonicus"	"-17,70"
"Fatshedera lizei"	"-17,70"
"Gunnera manicata"	"-17,70"
"Sarcococca saligna"	"-17,70"
"magnolia macrophylla"	"-17,70"
"sinocrassula yunnanensis"	"-17,70"
"zantedeschia albomaculata"	"-17,70"
"drosera binata"	"-17,70"
"hedera helix"	"-23,20"
"Jasminum nudiflorum"	"-23,20"
"hymenocallis caroliniana"	"-23,20"
"anthyllis barba-jovis"	"-23,20"
"amorphophallus konjac"	"-23,20"
"euphorbia "	"-28,80"
"Miscanthus sinensis"	"-28,80"
"sarracenia "	"-28,80"
"schisandra chinensis"	"-28,80"
"dendrobium "	"-28,80"
"morella pensylvanica"	"-28,80"
"sarracenia catesbaei"	"-28,80"
"Actinidia kolomikta"	"-31,60"
"tradescantia "	"-34,30"


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