5.—(1) Subject to sub-paragraph (2), the following (and only the following) fall within Article 4(1)(e)—
(a)cutting and tending grass (including re-turfing and re-seeding but not initial turfing or seeding);
(b)planting and tending trees, hedges, shrubs, flowers and other plants (but excluding landscaping any area);
(c)controlling weeds.
(2) An activity does not fall within Article 4(1)(e) if its primary purpose is research or securing the survival of any kind of plant.