Plant Database forum: Sun requirements..

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Name: Myriam
Ghent, Belgium (Zone 8a)
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bonitin
Dec 8, 2011 1:22 AM CST
Sometimes plants can thrive in more than one of the options given in the menu.

- Full sun
- Full sun to partial shade
- Partial shade to Shade
- Full shade

For example, my Begonias flourish in Partial shade to shade but also in Full shade, is it possible to cross on more than one option?
Name: Dave Whitinger
Jacksonville, Texas (Zone 8b)
Charter ATP Member Region: Texas Master Gardener: Texas Permaculture Raises cows I was one of the first 300 contributors to the plant database!
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dave
Dec 8, 2011 7:11 AM CST

Garden.org Admin

We designed it to be a select pulldown, so you can only choose one.

With some work, I can change this to a checkbox format so multiple options can be chosen...
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
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bonitin
Dec 8, 2011 10:11 AM CST
Thanks Dave! Thumbs up
Name: Dave Whitinger
Jacksonville, Texas (Zone 8b)
Charter ATP Member Region: Texas Master Gardener: Texas Permaculture Raises cows I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Beekeeper Garden Sages Avid Green Pages Reviewer Celebrating Gardening: 2015 Plant Identifier
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dave
Dec 8, 2011 10:38 AM CST

Garden.org Admin

I've made the change! You can now choose multiple sun requirements. That does make more sense, and I appreciate the suggestion. Thumbs up
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
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bonitin
Dec 8, 2011 10:53 AM CST
Great! Smiling
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
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eclayne
Dec 8, 2011 1:58 PM CST

Plants Admin

bonitin said:Sometimes plants can thrive in more than one of the options given in the menu.

- Full sun
- Full sun to partial shade
- Partial shade to Shade
- Full shade

For example, my Begonias flourish in Partial shade to shade but also in Full shade, is it possible to cross on more than one option?


I’ve come to realize that exposure data is somewhat imprecise given the many variables at play. Sun intensity (latitude), growing season length and available water all affect the exposure requirements. I’d wager folks here can come up with loads of additional things. Is it possible to come up with reasonable definitions which could be noted in a scroll over like the hardiness zone scroll-over? For instance:

Full Sun – Min. 6 hours (depending upon latitude) or other qualifier.

Even though this is not precise, the scroll-over definition would assure everyone is using the same reference point.

Using Bonitins example, what is the difference between “Shade” and “Full shade”? Should “Partial shade to Shade” read “Partial shade to Full shade”? I learned my lesson that some of these definitions can only be properly described in the comments area. One lesson, Helebores can grow in Full Shade but they prosper in Part Shade. Same with many Astilbe.

This MOBOT document http://www.missouribotanicalgarden.org/Portals/0/Gardening/G... has the following definition “Light levels are either greater that 6 hours (full sun), less than 6 hours (partial shade) or complete shade (deep shade). Most plant lists will at least give you some reference to whether plants can tolerate one light condition or another.”

Here’s another article http://gardening.about.com/od/gardendesign/qt/SunExposure.ht...

Thoughts?
Evan
Name: Myriam
Ghent, Belgium (Zone 8a)
Charter ATP Member Ferns Native Plants and Wildflowers Cat Lover Birds Bee Lover
Organic Gardener I was one of the first 300 contributors to the plant database! Frogs and Toads Plant Identifier
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bonitin
Dec 9, 2011 3:19 AM CST
Using Bonitins example, what is the difference between “Shade” and “Full shade”? Should “Partial shade to Shade” read “Partial shade to Full shade”? I learned my lesson that some of these definitions can only be properly described in the comments area. One lesson, Hellebores can grow in Full Shade but they prosper in Part Shade.



A few thoughts on that.. Smiling

I think one can also distinguish 'Full Shade' and 'Shade' like this?

- Full Shade or maybe better defined as 'Deep Shade': no sun and poor light levels, hardly any plant would thrive there, except a few like Ivy I have growing happily in these tough conditions in my garden.

- Shade: no direct sun but good light levels, I have quite some spots in my garden like that and I noticed that some plants that at least would require a few hours sun or dappled shade, also do fairly well when the light level is high, like for example I had a Ligularia dentata for more than 10 years happy in a large container that got no sun at all the whole growing season, it even made flowers..

Then there is also the fact that light levels and exposure to sun change during the growing season according to the position of the sun. This especially plays an important role in gardens enclosed by tall walls, like in my small town garden.

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