The simple routine

After this you can run all six things as one small weekly habit.

Here is the whole course, folded into a routine you can actually keep. It is smaller than you think, because most of the six things are decisions you make once, not chores you repeat.

Set once, at the start

Light — put the plant in a spot you audited that matches its needs
Soil & pots — start it in an airy, free-draining mix in a pot with a drainage hole (no gravel)

Every week (the walk, ten minutes)

Look at every plant and turn a few leaves over
Do the finger check and water only the ones that are actually dry — then empty the saucer
Write one line per plant in the log

In season, occasionally

Food — feed at half strength during active growth; stop in winter
Flush the pots with plain water every couple of months to keep salts down

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