I will be growing containers of greens (spinach and swiss chard) next spring. The mix will be peat/bark/perlite/lime. My question is, will 18-18-21 tomato mg fertilizer be ok for greens that require a higher N then PK ratio? Will the lime support all the the needed Ca, considering its missing in the micro nutrients of the fertilizer I am using? I noticed there is no sulfur in the micro either, is that needed?
Any help would be good. Thanks.