Hi there - super paranoid and trying to get some newly purchased trees to grow vigorously. I've got figs and citrus in double-walled plastic pots to help moderate temperature. The pots I got have a rounded, tapered inner wall with a single hole in the middle... I drilled four additional holes in the bottom to improve drainage. I've been pretty surprised with how long the pots are holding water - there is still water dripping out of the bottom 3 days after it rained, and it seems the soil is still pretty wet (based on my moisture tester) 6-8 inches down a week after watering. The citrus are in well draining citrus mix and the figs are in an organic potting mix. I have 1-2 inches of mulch on the top in an effort to minimize the soil from getting overheated by the California sun, but now I'm wondering if I need to get the soil to dry faster for the health of the trees. Is this typical for other with plastic containers - that they hold moisture for so long and water drips out of the bottom days after watering/rain?
The trees themselves don't have droopy leaves or show obvious signs of overwatering, but they're not yet growing vigorously- so wondering if the soil is too wet.