Costa visits a laneway transformed by love and plants; Tammy meets home hydroponic growers; Tino resets the vegie garden for spring; Sophie dives into soil science; Millie visits guitar makers transforming salvaged timber.

Costa learns about horticulture at the Zoo; Jane meets a flower-loving doctor; Tammy teaches care for fussy foliage plants; Josh learns about Lechenaultia; Tino pest-proofs his patch; Millie goes down her own garden path.