New plants - Japanese maple, Juniper, etc.

I really really like the look of Japanese maple.  So much I saved on my phone this list of cultivars which can grow in a container.  And then, one of the days I was driving near my favorite big box store I noticed a parking lot sale.  That is Japanese maple sale.
In this container I have Acer palmatum var. dissectum 'Tamukeyama' with a clump of Dwarf Mondo Grass Green (Ophiopogon japonicus 'nana') split in halves.  Probably I should have bought two of the grass mounds.  This container sits on the northern balcony near the edge of the building so it is hit by a morning sun.  Tamukeyama is believed to be the most sun resistant of all the Japanese maple dissectums.  I love to sit in the shade and just admire its intricate leaves.

Lessons Learned - Plants

Time flies.  Here is an update on my plants an what I learned about them (and myself ;-)

The combination of mother-in-law's tongue and southern maidenhair fern described here was most elegant and pleasing.  My attempts to propagate Sansevieria failed.  I used moss ground cover to maintain moisture and I think it was a mistake.  By the end of the winter mother-in-law's tongue leaves just rotted at the bottom.  I found no place for fern so just I discarded it.  Yet I would love to redo this container when I have a chance.

Sago palm described in the same post hardly changed.  I do not care much for it and it does not exactly match my vision for the north balcony, but it just keeps going.  Albeit slowly.  Must be root-bound.

On to South-facing balcony.  I knew the plants will not survive unless I automate watering.  All planters were hooked to a drip irrigation system connected to tap via timer. Most of the emitters are of micro-bubbler type. Watering was done every 3 days in summer and every 6 days in winter for 5 minutes at a time.  In retrospect, I should have been watering plants daily in summer.  Besides I forgot to change the schedule in spring and lost few plants.

Another Balcony

My north-facing balcony gets no direct sun.  So here is what I came up with...
Just a simple combination of mother-in-law's tongue (Sansevieria trifasciata) and southern maidenhair fern (Adiantum capillus-veneris).  I covered the soil with moss but it gets dry fast - this summer is really hot.  I water it periodically, about once a week - how do I make sure I do not over-water it? I do not let water stand in the saucer for more than few hours.  Oh and I have no idea whether these plants are compatible - they are sold in the same section of a big box store so I presume their light requirements are similar (low).  No idea about water requirements.  I think this is the most esthetically pleasing combination of plants I have.