Al's Gritty Mix and Sansevieria questions
I'm growing some Sansevieria Trifasciata Laurentii and Lillian True. They are also called Snake Plant / Mother-in-law's Tongue. They are slow growing plants and I’ve read that they take a decade or two to reach max leaf height. I’m aiming for leafs to grow over 4 ft height measured from the top soil, which is suppose to take over a decade. I grow them indoors and I've read that these plants are very prone to root rot.
I'm currently using Miracle-Gro Cactus Mix and it seems like the top soil is still dark (moist) after 2 weeks... I feel like I will never get the chance to water it which bothers me (I want to care for it) which led me to search for a more suitable potting medium. I place the plants in my bedroom so I wanted a soil that was hygienic, free of pests, and will last a long time (many years).
Then I read about the Gritty Mix which was soil-less and sounded pretty on paper. Remember, I want something perfect for my Sansevieria so that the leaves will last (hopefully) decades without dying, no root rot, healthy growth.
Here I go to test out Al's Gritty mix....
I made a batch of 1-1-1 Al's Gritty Mix using Turface All-Sports, Earthgro decorative Groundcover Bark, 1/8 Granite Grit.
However, it seems like all the water drains out completely. After a day, the top soil seems like its dry (light color, dark when wet). I tried to use a spray to moist the top soil lightly, but all the water drains out, whatever amount I put in it, I will see it in my saucer.
I don't want to water EVERY day, maybe once a week is better. My previous situation was top soil (miracle-gro cactus/citrus mix) still dark colored (moist I assume) after 2 weeks.
This is how I made my gritty mix 1-1-1 (please correct me if something is wrong):
Turface was washed with a bucket with 1/16 holes all over, small dust-like particles went out with the water. Kept the larger particles.
Bark was screened with 1/2 screen first to rid of large particles, screen again with 1/4 tablecloth wire. I kept all the fines and pieces that went through the 1/4. Anything larger was tossed out (did I do this right?)
Granite grit was 1/8, was pretty uniform out of the bag. I washed it anyway.
I also added "dust" that came from the process of crushing and making the granite grit. I was told it had many trace elements since the granite had been broken down. I bought it along with the granite grits.
Mixed it all together, rinsed it once more time, and placed it out in the sun to dry.
Question now is...
Should I add another 1/2 of very fine bark and 1/2 turface making it 1.5 Turface, 1 Granite Grit, 1.5 Fine Bark to increase moisture retention?
I'm growing Sansevieria, I don't wish for root rot, I want it to grow healthy, but the current 1-1-1 seems to 'dry' out fast. I'm not even sure if the mix is even holding much moisture for my plant.
For those curious of my mixture and cost. Breakdown as follows:
1) Turface All-Sports - John Deere Landscape - $15 for 50 lb bag
2) Earthgro Decorative Groundcover Bark - Home Depot - $4 for 2 cubic feet (had to toss out half the bag due to large particles)
3) Granite Grit 1/8 size - $7 for 80 LB bag
4) Rock Dust - $7 for a full bucket