sproutagen.
/ˈspraʊtɪdʒ/, U.S. /ˈspraʊdɪdʒ/ rare.
Sprouts collectively; new growth. Often (and in earliest use) figurative.
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the world > plants > part of plant > shoot, sprout, or branch > [noun] > shoots
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shooting1608
sproutage1860
1860 D. Masson in Macmillan's Mag. May 7 The rate of the [literary] growth, the amount of fresh sproutage that shall appear.
1895 Jrnl. Amer. Folk-lore 8 296 Straw, rushes, and osiers are sufficiently resemblant forms of sproutage turned..to industrial uses in beehive, chair, mat, bag, budget, and basket.
2014 Herald (Glasgow) (Nexis) 15 July 16 My face was not adorned by the lush sproutage you observe in the byline picture, but by a simple moustache.
This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022).
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n.1860