Planting distance Question
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20 days ago
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Ken Wilkinson
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Window direction vs. distance: sunlight for indoor plants
Comments (11)Morning All, Michael, The problem is, 6' from an east window is low light..Probably lower than your north bay. I surely wouldn't' hang a curtain...sheer or not. Sorry Pupkineater. :) How close/far are outside obstructions from your windows? Being on the second floor is advantageous. My second floor plants get a lot more sun than those on the main floor. Of course, 2nd floor is closer to the sun... :) j/k. What color are your walls? I paint with white, semi-gloss. The brighter the better. Semi-gloss washes off easily, too. Plus, brighter walls dissuade insects. I'm not saying painting your walls white will prevent bugs, but most insects dislike light colors...brightness certainly helps. Ficus need bright light. Lyrata's are slow-growers to begin with,...in less light, it'd probably grow even slower. And 'possibly spindly.' Don't know anything about Boxwood. If Boxwoods are garden plants, used as hedges outdoors, I'd imagine they'd need full sun. I'll have to research Boxwoods, though. Have you considered artificial lights? There's many types to choose from...inexpensive to expensive. Heck, I even use, cool white, white warm, fluorescents in back where many plants go. Including succulents. But, plants are near windows, too..not that it matters, IL is usually cloudy during winter, so artificial lights does help. I also use Gro-Lights..bulbs are about 20.00 each. There's all sorts of light tricks. Good luck, Toni...See Morenew Thuja hedge, planting distance?
Comments (2)Hi midadoo, Do the math. Figure at what "heigth" you want them to be touching. If a plant at 10 years is only 2 feet across but only 10 feet tall, however you want a 20 foot tall "screen", then plant them accordingly. It's all math. Doesn't matter if it's 'Atrovirens', Thuja X 'Green Giant', or anything else for that matter. Since Atrovirens is a cultivar, "we" know the size it will become in height and width always as well as how much vertical and horizontal growth it will produce 'at a given time in time'. My examples are not for 'Atrovirens' "Western Red Cedar" but are an example of how any person on this planet should "think ahead." Obviously you can type so I expect a few simple mathematical additions you can do as well. The answer to your question which is another question in itself because you will be pruning them to control heigth as a "Hedge" is to plant them X feet apart (money being another third issue' and length of screen being another "money" issue) is for you to figure it out yourself. In 10 years time, a "single" Thuja plicata 'Atrovirens' will be without any doubt in anyones mind - 10 feet x 2.5 feet wide. Here's a link for you and you can determine on your budget how far you'd like to space a 8-10 foot hedge with a plant that has the possibility of becoming over 100 feet tall. Thanks... Dax Here is a link that might be useful: Western Red Cedar 'Atrovirens'...See MoreQuestion about light intensity and distance
Comments (3)You should be able to use the inverse square law to determine the illuminance You can't. The inverse square law applies only to point source lights. A fluorescent tube is not a point source, plus it is always used within a reflector, hence the inverse square law is doubly useless. Imagine a searchlight, a light source with a very accurate reflector. No way does the inverse square law apply, in fact the illuminance decreases only very slowly with distance. The inverse square law is simply a special case of the more general rule that the illuminance is equal to the total emitted light divided by the area that it illuminates. If it radiates equally in all directions, then the illuminated area is the surface of a sphere of radius equal to the distance from the light source. The surface area of the sphere is proportion to the square of the radius, hence the illuminance is inversely proportional to the square of the distance from the light. This is the derivation of the inverse square law. Might it possibly be on the final? Applying the more general rule to the real world situation of a fluorescent tube (or multiple tubes or bulbs ) focussed by a reflector or system of baffles to only illuminate a given area, then the illuminance in foot-candles is simply equal to the total lumens divided by the area in square feet. No reflector is perfect and some of the light will always be lost and not arrive in the desired area, as little as 10% in some fittings, but generally more. You don't need to know the geometry of the light system, or make any assumptions about inverse square laws or other laws, you just need to know how much light you have and how much of it gets to the area you are interested in. Lumens divided by square feet gives foot-candles....See MoreAnother question- rose replant disease and distances between roses
Comments (17)This is a never ending issue here. Commercial rose growers near me rotate the fields, not returning to the original one for at least 7 years, they replant with new roses in a neighbouring field, but the old one is left to grow other crops, after all the roses have been dug up and sold off.. I have done my own experiments in a small way... I have found that mycorrhizal fungi stops the issue occurring most of the time, without soil replacement, but is not 100 percent guaranteed to solve the problem every time... I have just dug up a rose that I know was suffering despite MF treatment at planting time... David Austins told me it's ok to replant if the old rose had not been growing for more than 2 years,,, my experience is different and agrees with the RHS who say that just a few months is enough to cause a problem between roses.. I have also found that replacing an own root rose with a grafted one, did not affect the new rose, but when I replaced a grafted rose, with an own root, the own root rose suffered and languished - I can tell just by looking at it.. it still hasn't recovered fully.. Another way around it, is to plant a new rose just a couple of feet to the side of the original planting hole, I've got away with that a few times... Last year, I dug out a large 'Mutabilis', that had been growing for some 7 years, and was about 8 foot tall by 10 foot wide... I replanted with a transplanted 'Cornelia' rose using 'MF'... without any soil amendments. This rose has thrived and has been in full bloom already...showing no signs of ill health... you win some, you lose some it seems.....See Moregardengal48 (PNW Z8/9)
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