Across Clues:
1 Echo effect always found in short musical genre? (6)
5 Innocent one cannot fully blossom (8)
9 Fish-tail all over the place? it could cause crawling (8)
10 Lean in to listen on father's conversation (6)
11 Except on Saturday, women worker helps dreamers (10)
12 Squeal from Fido in Kennel (4)
13 Flower for stage mother holding her young? (5,3)
16 Offset around a type of plant (6)
17 Officer of the French American plant (6)
19 Evergreen gem mounted (4-4)
21 Pot a useless plant? (4)
22 Everlasting fashion rag without a large plant (10)
25 Plant in LA neighborhood (6)
26 A flower for au pair for accommodating tirade (8)
27 Fearless in rising storm, fisherman trawl at sea for livelihood (8)
28 Last word on the French exam (6)
Down Clues:
2 Evergreen spread in one acre? (5)
3 Close from work? (5)
4 Flower without traces of sweet scent is still a flower (7)
5 Flowering plant in unkempt sanctuaries (7)
6 Tortuous seating in a flowering shrub (7)
7 Squire, a type of network bummer? (9)
8 String words, Leatherface’s weapons of choice? (9)
14 Prayers offered at one. Men take turns confessing their sins and make some amends (9)
15 Creeper showing haste? what? (9)
18 I aspire to synthetically create a flowering shrub (7)
19 Six-footer on freeway access road that was abandoned (7)
20 Cut back on the dog chase? (7)
23 Pass directions on play (5)
24 Bunch of American flower (5)