The fruit will stay good on the tree until late winter. Be sure all of the fruit has been harvested before the tree blooms in the spring. However, all ripe fruit should be harvested from trees prior to a significant freeze. It takes temperatures in the mid- to low 20s for five to 10 hours to freeze the fruit.
Lemons ripen best ON the tree, although you can ripen them after picking if needed.
If left to ripen on trees, Lemons can get a bit sweet. Picking them green makes them a little more sour. Unlike other citrus fruits, Lemons will ripen after being picked and become fully yellow in storage (as bananas will.)
When a plant flowers, its water supplies should be increased, because if there isn’t enough fluid around, fruit initiation doesn’t occur and the flowers simply fall off.
They gradually mature and gain sweetness; in fact, the fruit may take as long as nine months to ripen. Once the fruit is mature, it can be left on the tree for a few weeks, but it does not ripen more. So first off, the lemons may not be turning yellow because they have not been ripening on the tree long enough.
Lemon trees do not produce fruit every year. In the first one to three years (and perhaps longer), a lemon tree will be focusing its energy on growth and storage of energy and nutrients. A lemon tree may not produce fruit for a couple of years while it focuses energy into growth as it matures.
Know that lemons will never truly ripen once you take them off the tree. They may turn more yellow and grow softer, but they will not necessarily become sweeter or juicier. If you get an under- ripe lemon and leave it on your counter, it may turn more yellow but it will still taste bitter.
Lemons are ready to pick as soon as they are yellow or yellow green in appearance and firm. The fruit will be 2 to 3 inches (5-7.5 cm.) in size. It’s better to wait until they are the right size and not worry so much about color than to wait for them to be completely yellow.
How to Encourage Fruit on Lemon Trees. Water the tree deeply and frequently during fall and half the amount of irrigation in winter. Resume the deep watering in spring and summer as these juicy fruits need plenty of moisture to form.
Lemons turn from green to yellow because of temperature changes, not ripeness, so green patches are OK, but avoid those with brown spots, because that means ROTTING! Bottled lemon juice is worthless.
Yes, it’s best practice to remove flowers from young citrus trees for the first few years, so they can put their energy into developing a good root system and branch structure.
Pruning should involve removing unhealthy, unwanted and poorly positioned branches but minimise the loss of healthy foliage. The best time to prune is soon after harvest in winter to early spring before bud break. For late varieties where two crops may hang on the tree at once some of the new crop may be lost.
Growth Stages of a Lemon Tree Youth. Lemon trees can start growing fruit as soon as their second year, so their youth is relatively short lived. Bud Induction. This is the period of time that determines how many flowers a tree will have (and, ultimately, what volume of fruit it will produce). Flowering and Fruit. Cell Expansion. Ripening.
Watering is one of the most important things to consider. Your tree needs to be watered twice a week until it begins to show new growth. After that, citrus trees like to dry out between watering, so once your trees are established, deep- water once every 10 days to two weeks.
“Meyer” lemons are a hybrid variety with sweeter juice, picked mainly from November to March, but is likely to have some ripe fruit at almost any time of year.