Shading cover

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rcapra
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Country: Italia

Shading cover

Post by rcapra » Fri Apr 16, 2021 7:08 am

Dear friends, I am writing to you for your help with a dilemma I have to solve. I have a new greenhouse where I only grow cacti and I have to choose the shading and anti-hail cover. The roof is made of polycarbonate. I am facing south and my problem is sunburn and excessive temperature.
Do you think 50% shading is appropriate or is it possible to get to 75% without harming the growth? The net has a white color and not dark green. (Certainly the ferocactus and echinocereus will be in full sun.)
Thank you so much for the valuable advice.
Ruggero
Herts Mike
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Re: Shading cover

Post by Herts Mike » Fri Apr 16, 2021 10:49 am

Much as I would love to help you, my problem is getting enough sun.

I have never needed to shade, even when I grew Haworthias.

Sorry.
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conolady
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Re: Shading cover

Post by conolady » Fri Apr 16, 2021 12:57 pm

rcapra wrote:
Fri Apr 16, 2021 7:08 am
Dear friends, I am writing to you for your help with a dilemma I have to solve. I have a new greenhouse where I only grow cacti and I have to choose the shading and anti-hail cover. The roof is made of polycarbonate. I am facing south and my problem is sunburn and excessive temperature.
Do you think 50% shading is appropriate or is it possible to get to 75% without harming the growth? The net has a white color and not dark green. (Certainly the ferocactus and echinocereus will be in full sun.)
Thank you so much for the valuable advice.
Ruggero
Hello. I think 50% is adequate. I have used it when necessary and the plants looked fine. I used dark green shade net, but I’m sure the white would be equally good.
First it was orchids, then, since c.2001, cacti and succulents. I'm into South African plants, mainly conos, lithops and haworthias, with a few cacti, especially 'posh' mamms, turbs and other smalls. Now it’s stapeliads as well...
jerryb23
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Re: Shading cover

Post by jerryb23 » Fri Apr 16, 2021 1:22 pm

I would have thought that your biggest problem in Italy may be ensuring sufficient ventilation and airflow. Taking out some of the side windows for the summer along with 50% shading may be the best option. If you use shading I think it will need to be in place all year round. Good luck.
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fero
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Re: Shading cover

Post by fero » Fri Apr 16, 2021 9:35 pm

I've seen net curtains work well . I leave my bubble insulation up, just have to take it down before it disintegrates.
rcapra
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Country: Italia

Re: Shading cover

Post by rcapra » Sun Apr 18, 2021 9:05 am

Thanks for your help! The opening of the side walls and 50% shading should work well without damaging the growth of the plant and thorns. I will share the experience.
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Tina
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Re: Shading cover

Post by Tina » Sun Apr 18, 2021 11:41 am

I would go for the 50% if you have some plants that are still struggling they can have a little extra protection with out it affecting all your plants, some of mine get an extra green net covering if they are looking unhappy.
https://www.forum.bcss.org.uk/viewtopic ... on#p306331
Tina

varied collection of succulents and cacti but I especially like Euphorbia's and variegated agaves.

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rcapra
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Re: Shading cover

Post by rcapra » Mon Apr 19, 2021 8:00 am

It seems to me an excellent choice especially for gymnocalycium which in my case suffer from excess sun even if well ventilated.
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