Soil Moist/Water Crystals | | Stay away from that stuff. If you're watering properly, you don't need them. They take up bulk in the soil, and roots can't penetrate them. They can also suck water away from and damage the roots when they get dry, and can over-aerate the soil to the point of drying out the roots and weakening the entire soil structure.
I had a huge, bulky, horizontally trained jade (that was admittedly a little top heavy but had dozens of branches) that was just starting to blossom (rare). It collapsed and was largely destroyed (and made a huge mess) while I was on a business trip because the dry Soil Moist shrunk and turned the soil into swisscheese. If you're going away for a few days, get a friend to water your plants or set up a drip or blumat system.
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