ACROSS
1 Potato root eelworm is the common name for the potato ____ nematode (4)
3 and 19 across, and 9 down: The subject of this week’s Miscellany! (6,6,3)
6 A plant will do this when it grows quickly and goes to seed (4)
7 This aloe is not a succulent, but the olive genus (anag) (4)
8 Obligation to pay, as in a trowel! (3)
11 Alternative common name for the rubber plant (Ficus elastica) (5,6)
15 Fundamental to coconuts, but sounding like koi! (3)
17 In botany, the angle or point of divergence between the upper side of a branch, leaf, or petiole, and the stem or branch from which it springs (4)
18 Swiss chard is also known as silver ____, leaf ____ and ____ spinach (4)…