{"id":64332,"date":"2026-04-08T18:57:49","date_gmt":"2026-04-08T08:57:49","guid":{"rendered":"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=64332"},"modified":"2026-04-08T18:57:49","modified_gmt":"2026-04-08T08:57:49","slug":"one-look-plant-health-evaluation","status":"publish","type":"post","link":"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=64332","title":{"rendered":"One Look Plant Health Evaluation"},"content":{"rendered":"

\"One<\/p>\n

\n
Yellow leaves don’t mean “add fertilizer.” They mean three different things depending on where the yellowing starts.<\/div>\n
<\/div>\n<\/div>\n
\n
That’s true for almost every leaf symptom. The plant is telling you what’s wrong \u2014 but the diagnosis depends on which leaves, which part of the leaf, and whether it’s new or old growth.<\/div>\n<\/div>\n
\n
<\/div>\n
\u00a0The quick read:<\/div>\n<\/div>\n
\n
– Lower leaves yellowing first \u2014 nitrogen. The plant pulls it from old leaves to feed new ones<\/div>\n
– Upper leaves yellow with green veins \u2014 iron. New growth can’t get enough<\/div>\n
– All leaves yellowing evenly \u2014 overwatering. The roots are suffocating<\/div>\n
– Leaves turning purple \u2014 phosphorus<\/div>\n
– Brown crispy edges \u2014 potassium<\/div>\n
– Leaves curling inward \u2014 water stress<\/div>\n
– Spots \u2014 fungal<\/div>\n
– Holes \u2014 insect<\/div>\n<\/div>\n
\n
<\/div>\n
The difference between nitrogen and iron is which end of the plant turns yellow first. Most of the time, the leaf already told you the answer before you opened the fertilizer bag.<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Yellow leaves don’t mean “add fertilizer.” They mean three different things depending on where the yellowing starts. That’s true for almost every leaf symptom. The plant is telling you what’s wrong \u2014 but the diagnosis depends on which leaves, which part of the leaf, and whether it’s new or old growth. \u00a0The quick read: – … <\/p>\n

Continue reading “One Look Plant Health Evaluation”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[137,5],"tags":[],"class_list":["post-64332","post","type-post","status-publish","format-standard","hentry","category-gardening","category-general-interest"],"_links":{"self":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/64332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=64332"}],"version-history":[{"count":1,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/64332\/revisions"}],"predecessor-version":[{"id":64334,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/64332\/revisions\/64334"}],"wp:attachment":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=64332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=64332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=64332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}