| ONAGRACEOUS | Relating to the botanical family that includes willowherbs (11) |
| ELEMI | Resin with a lemony-pine-like scent derived from a tree in the botanical family that produces frankincense and the natural gum described in 80 Down (5) |
| NEILLIA | Genus of the botanical family Rosaceae, named after an 18th century Scottish naturalist (7) |
| SKEW | Obliquely go south to the botanical gardens (4) |
| CEDAR | Evergreen conifer with fragrant wood that shares a botanical family with pines, larches and firs, as well as the Norway spruce, often used as a Christmas tree (5) |
| PLANT | From the Old English for "seedling" and the Latin for "sprout, cutting", any one of the botanical organisms forming Earth's collective flora including fern, herb and moss (5) |
| AGROSTEMMA | From the Greek for "garland of fields", the botanical name of the corncockles whose association with agricultural landscapes dates back some 4,000 years (10) |
| TAGETES | From the name of an Etruscan god who sprang from the ploughed earth, the botanical name of marigolds (7) |
| ASH | With the botanical name Fraxinus, "firelight", an oleaceous tree with winged seeds called keys for their apparent resemblance to keys used in medieval locks; the powdery remains of combustion; or, lig |
| SEQUOIA | What is the botanical name for the giant Californian redwood? (7) |
| SHAMROCK | Young sprig of clover that is the botanical emblem of Ireland (8) |
| ALGA | Seaweed found in the botanical gardens (4) |
| PODS | The botanical structures from which peas may be harvested (4) |
| GINGER | The botanical name for which spice is Zingiber officinale? (6) |
| ASKEW | On a slant like the Botanical Gardens (5) |
| THISTLE | The botanical emblem and national flower of Scotland (7) |
| MOSSES | What plants comprise the botanical class Musci? (6) |
| ERICA | What is the botanical name for heather? (5) |
| COSTA | The botanical name for a rib (5) |
| ILEX | The botanical name for holly (4) |
