I was curious and I tried it this morning after my usual morning qi gong routine. I thought with those lifting, moving earth, carrying compost around the garden, the occasional digging and watering the plants with a watering can I can do at least 3 of each. In my earlier days many moons ago I could do 50 push ups and 100 sit ups a day and now I can only do ... Make a guess.
I've a couple of 5kg weights I used to use for years for a 10 minute routine every day. But haven't bothered since Covid. I find playing golf is all I need to keep me fit, that and gardening. I never did push-ups and I couldn't afford a set of weights in my youth. So my daily exercise was just to do a hand-stand up against the bedroom wall, then lower myself down until my head touched the floor, then push myself up until my arms were straight again. I could manage a dozen at a time on a daily basis. I wouldn't even attempt a handstand now.
Exercise according to level of fitness is helpful. Yearly gardening done in each season and beyond is great exercise to stay in shape. I read that gardening is equivalent to bicycle riding or walking. Gardening works all the major muscle groups: legs, buttocks, arms, shoulders, neck, back and abdomen.Also helps burn calories.