I should probably be slapped on the wrists for doing so, but I read somewhere that when the top of the beet root is clearly visible above ground, then it's time to harvest. Harvest is the operative word here, because in higher altitude prealps, we always wait longer than the green thumbs down at lakeside. Nevermind the fact that you should also take into consideration the days to maturity of which I totally, outright, so-sue-me-I-don't-care disregarded in this case. How pitiful that beet looks, nowhere near the 2-3 inches in diameter that it is supposed to be. The thing with yanking something out of the ground early is that you learn not to do it again, so I am happy to leave the rest where they are until well after summer.
These mirabelle plums are almost ready for picking; they just need to turn a little more yellow in color. The persimmons, on the other hand, have a long ways to go. Typically they appear on supermarket shelves around November, but have shown up earlier in the season if it has been a particular warm year. We have never gotten anything from the tree since it was planted 2 years ago, so it'll be the first harvest if strong winds, bugs or hail don't get to them before they reach full maturity.
Average daytime temperature: 23°C / 73°F