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December 01, 2012


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Al Gracian 3

"The bottom line is that you do not need pots with drain holes and that sub-irrigation is a vastly superior method of growing plants in containers."

This statement really needs some context. Specifically, it can only be applied to indoor growing situations. Any outdoor container plants NEED either a drain hole or an overflow hole [SIPs].

Al Gracian 3

"The bogus claim for drain holes is that you need to flush soluble salts from the soil. . . . it is a low rung problem for consumers."

I've thought a lot about this lately. My questions are:

1) What type of water are you watering these plants with?

2) What types of fertilizers do you use?

3) What type of potting mix do you use?

4) How much water does one of your spider plants require each week?

5) How much potting mix does one of your containers hold?

These are all variables that will drastically effect your experience & whether or not excess salinity becomes an issue for you.

A consumer may be watering plants with hard water that has gone through a "softener". Such water contains higher levels of salts. Meanwhile, someone else might be watering with distilled water.

One consumer may be using a coir based mix that happens to have high levels of salt.

The transpiration rate of a certain plant might be so high that it needs watered much more often than someone else's plant. The rapid turn over of waterings WILL accelerate the build up of ANY minerals that are in the water.

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