Guild members toured the Hyde Park barracks and saddlery before the meeting in the warrant officers' mess.
Chairman Mike Fitt said: "We announced a five-year review of the guild and will look at the way forward. We support Royal Parks' apprentices and recruit volunteers."
Subscription rates for the 300 members have gone up from £8 to £10 and the guild heard details of its annual apprentices' awards on 15 November.
The four prizes include one for the best trainee in each of the three years and an overall best apprentice award.
The event, at Goldsmiths' Hall, City of London, is partnered with the Worshipful Company of Gardeners.