[strangerachael]

I've got 5 lemons on my tree  but I'm not sure how to tell when they're ready to harvest - anyone got any experience with this? They are yellowish but no other clues

[LilacSandy]

This was on MeyerLemonTree.com.  May be of help

Meyer Lemons go from immature to mature and finally to an ‘old’ condition while on the tree. But the changes are slow and occur over several months. Some citrus, like limes, are harvested prior to ripening. (A lime is actually yellow when it is fully ripe.) Other varieties, like lemons, are usually safe to pick once they turn yellow. But the trickiest varieties are oranges, mandarins and grapefruit – because sugar content is very important. Why all the concern? Because the ripening process does not continue once citrus has been picked from the tree.

Unlike many other fruits and vegetables, deep color doesn’t necessarily equate to a perfectly ripened citrus fruit. But color (deep), weight (heavy) and age can collectively provide a good indication that citrus is ready for consumption. The best way to determine ripeness, especially for less experienced citrus gardeners, is to taste the fruit.

Unless damaged by frost, citrus fruit keeps longer on the tree than if picked and stored. When picking fruit, harvest from the lower branches first. Leave the higher fruit for later in the season. If the fruit skin is beginning to wrinkle, it’s been on the tree too long. Albeit safe to eat, overly mature fruit is less attractive and usually contains less juice.