Hey got 5 plants growing out doors,I have bergmans fertilizer just wondering if it can be used as a foyer spray. Last year I used another brand of nutes and when the ground was to wet to water I would mix in a sprayer, use as a foyer spray Worked great, so I’m assuming it would be fine with Roberts. GThanks
Foliage spray of mature plants has more risk (mold, burn,…) than there are potential benefits. Mature cannabis plants can get everything they need from soil.
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If plants need additional supplements, better to top-dress in to the soil layer. Assuming you meant foliar feeding; best to avoid whenever possible for the reasons stated above.
Thanks guys