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Oleander
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Posted by texasgirl54 8 (My Page) on Tue, Nov 17, 09 at 13:42
I have two Oleander bushes about 5' tall, in big containers. (Heavy)
One of them is still blooming.
How hardy are they??
Should I cover them up when it gets colder?
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Follow-Up Postings:
RE: Oleander
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- Posted by brandon7 6b (like 7b now) TN (My Page) on
Tue, Nov 17, 09 at 14:46
| Hardy to around zone 7 or 8 if planted in-ground, depending on the cultivar. The only problem your likely to have is root hardiness. Normally-above-ground plant parts (trunk, limbs, and maybe even foliage) can survive much colder temps than normally-below-ground parts (roots). If your oleanders are planted in pots (roots above ground level) they will be significantly more sensitive to cold weather than if they were planted in the ground. To be on the safe side, you need to provide some type of protection (unheated building, pot buried in the ground, mulch or straw bales around pot, etc). |
RE: Oleander
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| Brandon's 100% right. Big difference between containers and in-the-ground (ground being MUCH warmer). Expect some damage if unprotected in the pot, less if in the ground and mulched, etc.--They are pretty hardy though (even into zones 7, more so, zone 8). |
RE: Oleander
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| I had two white ones in the ground that got burnt in the upper teens. They were planted in a low area so that probably didn't help. |
RE: Oleander
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| Every once in a while I'll see an accidental shipment of it here at a big box store like walmart (zone7) along with other stuff that doesn't belong here like Hibiscus and live oaks but I haven't seen it growing outside of zone 9 and 10. |
RE: Oleander
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- Posted by brandon7 6b (like 7b now) TN (My Page) on
Fri, Nov 20, 09 at 8:56
| A few people grow them here (officially zone 6b) supposedly without protection (although they may be planted in somewhat protected areas). I don't know what their secret is because mine ('Hardy Red' and some other extra hardy variety) were toast in no time. |
RE: Oleander
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| They are only hardy in zone 8 and below if you have significant summer heat necessary to properly ripen the new growth. Otherwise they experience substantial die back in winter and fail to bloom. I kept one alive in my zone 8 in a very protected location for about 5 years but it never produced much growth and only one pitiful, lonely bloom before it died out completely. Too much trouble for what it was worth but a very reliable plant in hotter zones. |
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