Pros and Cons of 511/ Gritty mix and peat based potting soil
I saw many discussion/confusion/misundertanding going on in the forum about Al's 511/gritty mix and store bought peat based potting mix. I may just open a can of worm post this thread, but I would like to know what are the Pros and Cons of using or not using Al' 511/gritty mix.
Just through in my two cents. IMO, Al's 511/gritty mix provide a opportunity for ontainer plants to reach their full potentail. But Al's mix may not be suitable for everyone.
Many of us many grow container plants for years in regular soil or peat based soil. Plants may survive every year but may not thrive every year. We may not know plants potential untill we put it into different medium to let grow stronger, healthier root system. But this come with scarifice... I used to water my plants once a week, sometime, 10 day or more depends on the soil moistry level. The plants I have in gritty mix, I have to water every two days...
Some plants are more tolerant of overwatering, maybe these plants are better off grow in regular soil so that you can cut the maintenece time down?
Some annuals that only need one season of good soil, maybe there is no big growth differences between using peat based soil and 511/gritty mix for veggies and annuals?
Regarding the cost, it is about the same as common commercial peat based potting soil. I buy pine bark around $3-4 per 2 CF only half can be used in the mix so bark is $3-4 per CF. Perlite is about $24 per 4 CF so it is $6 per CF. Peat is about $10 per 3CF at Lowe's so is about $3 per CF. comes down to about $3.5 per CF ( $24 in 7 CF) for the 511 mix which is about same as MG potting soil with fertilizer which is about $7-8 per 2 CF I bought. With MG rebate, MG is much cheaper.