National Garden Day 2024. This week is an opportunity to. The theme for national gardening week in 2024 is ‘knowledge is flower.’ all week, experts at the rhs will be on hand.

Feel free to add this calendar to your personal calendar, and. Each year the national garden bureau selects one annual, one perennial, one bulb crop, one edible, one houseplant, and one shrub as our “year of the” crops.