JB--
I know you want me to jump in--but I have no advice to give you on this.
My house has a whole-house humidifier attached to my furnace. It runs on its own.
I keep it set at 35-40 degrees humidity. It does use a lot of water down the drain--but it makes
the home comfortable.
You know I have a slew of houseplants inside all winter. Mostly--they have to fend on their own.
I cannot, possibly, pay attention to each and every one of them re watering.
The hanging baskets suffer the most--among them--my 4 HB of Spider plants.
I swear--they go bone dry--to the wilting point--before I water them. This does not seem to
affect them. When I do water them--I do it deeply.
I always seem to remember what I read about the Curly Spider plants---they need to be "stressed out"
to stay curly. Too much watering will make the curl go away.
REMEMBER!!! Mature Spiders make these fat water-saving roots in the soil below.
These keep the plant going in case they do not get enough water.
SO--in my book--ignoring some plants is for the best. Let them be--until they wilt and
beg for a soaking. Then do it.
JB--if you have only well water and have to use the water softening salts--why don't you pick up
some of the gallon bottles of filtered/spring (?) water in the stores. The gallon only costs $1.
In some Grocery stores--you can re-fill your empty gallon containers for just 59 cents.
I do not know what else to tell you....maybe just letting your Spiders go bone dry before you water them.
I will look into this Thread now and then and see what others have to say.
Sorry about your plant problems......
Hugs---Gita