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The Corroboree
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Dreamwalker.

Any idea why you'd put cups on top a cactus?

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frost for one,

and maybe sunburn, during peak growth period.

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To stop tip damage from hard frosts. I have heard of that.

Edit. Typo. And 2nd reason because it looks awesome.

Edited by watertrade
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styrofoam works best for this since it is a good insulator, like in the picture :wink:

Edited by djmattz0r

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Ahh yes the old foam cup on the cactus tip. This is to prevent skydivers from impaleing themselves on someones best efforts to grow a fence.

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The real hardcore fence growers use cups with the maccas big m screen printed on em'

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Iv used cups to stop the rain from falling on fresh cut limbs

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I've used upside down pots to prevent hail damage, wind blew alot off though :rolleyes:

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I know one grower that puts cups on his favourite specimens to stop birds damaging the tips.

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thanks.....all make sense...wert's is probably stretching it a bit :)

kinda spoils the look a little though...a bit undignified...could paint happy faces on the cups I guess...

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to stop the horse from eating them

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I put cups on the tip of my penis plant so that I don't have unexpected children.

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Maybe it helped some, but I still had lots of frost damaged tips.

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How cold are we talking to cause frost damage despite the cups? Colder than (say) -10 deg c (14 deg f)?

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Not that cold for me. Coldest of maybe 20f/-7c, but 25f/-4c is more common and causes frost damage every year.

Some plants are completely unaffected even without protection, some frozen tips with or without protection.

Bridgesoids and chalaensis regularly get frozen tips. Cuzcoensoids and peruvianoids rarely. Pachanoids rare but but fare worse than Cuzco and Peru. Terscheckii/werdermannianus/etc have never had any frost problems.

Placement in the garden makes a big difference, and I expect daytime temperatures make a big difference. Even on my freezing nights it's often 50-60f/10-15c in the day. I planted a row next to the house in a spot that gets no sun until noon. Almost every cactus in the row froze, even some that had never been affected before.

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Bill and ben, bill and ben, bill and ben the flower pot men.

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