Tomato growth cycle
How do you determine which KNF solutions to spray with a plant like indeterminate tomatoes? Which continue to set new flowers continuously.
Top answer
Tomatoes alternate between puberty, chubby, and skinny cycles on a two week basis. If you observe closely, you will see one week, the chubby phase of putting out leaves, then the following week entering the skinny phase where the plant stretches and throws out a new fruit panicle. So phasing it every other week to be alternating between chubby and skinny, replacing the skinny every other time with a puberty.
chubby|skinny|chubby|puberty|chubby|skinny|chubby|puberty and so forth.
From the KNF library
From the KNF library
Drafted by Claude from Office Hours and the books
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Sep 2026
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4 sources
Drake recommends spraying weekly and alternating through the nutrient cycle. (Office Hours Ep. 112, 31:35) He matches the formula to the plant's stage on the KNF growth-cycle chart. (Office Hours Ep. 16, 58:51)
Cho describes fruit crops as mixing leaf growth and reproductive growth in one plant. (Cho, Theory, p. 106) For these crops, he sprays the roots and leaf sides whenever three nodes are added to the stem. The aim is a longer harvest and a bigger yield. (Cho, Theory, p. 106)
Before the first flowers, Cho supplies phosphate and boron to tomatoes. (Cho, Theory, p. 107)
The library does not say how to sequence sprays for indeterminate tomatoes beyond this.
Sources
- 31:35 Office Hours Ep. 112 (Feb 2024) — Brown Sugar vs White Sugar, Millet for IMO3, Herbal Pest Spray · “Spray weekly and alternate through the nutrient cycle”
- 58:51 Office Hours Ep. 16 (Jan 2022) — 120-Acre Land Restoration, IMO4 Rates, Cheap Microbe Recipe · “matching the formula to the plant's stage on the KNF growth-cycle chart”
- p. 107 Cho, Theory · “supply phosphate and boron (contained in natural phosphate calcium) to waterrnelons and tomatoes before the blossom of first flowers”
- p. 106 Cho, Theory · “Fruit crops have a unique growth pattern of nutritional and reproductive growth mixed together.”
