19/06/2022
I had the good fortune to have a dear old friend, who set me up with my first lemon tree about 25 years ago, and never have I had to purchase lemons since. It has been a long learning curve. At the beginning, I barely managed to keep my trees alive, but slowly I saw them thrive, produce, and even reproduce.
It is not rocket science, it just takes paying attention and some scheduled maintenance like anything else. My most important findings, specific to our location, other the general requirements that one can read up on any website are as follows:
• Lemon trees need a lot of sun, so maximizing the time spent outdoors is very important. Instead of waiting for the last frost date, which is mid-May for us, I drag them out in April and if a few chilly nights are in the forecast, I shelter them close to the house and cover them for the night.
• They really dislike a dry indoor environment, so giving them an occasional shower helps immensely. While in smaller pots, I just give them a quick shower, when bigger, I use a spay bottle and mist them periodically.
• One can create a mini greenhouse environment as well. The least trouble for me to winter them through is on my unheated porch. I have a greenhouse heater that is set at 40F degrees in the dead of winter, and I slowly raise it as the outside temperature rises. This takes the minimum energy expenditure.
• Both the greenhouse and the reduced temperature will eliminate the biggest problem that lemons face indoors. No more spider-mite infestations.
• To maintain most of the foliage, and creating better fruiting conditions, I also use a plant light for a few extra hours a day. This way the number of leaves the plant will shed when brought inside, will be greatly reduced and will have more energy to fruit rather then grow new leaves when moved outdoors.
• One of the most important things, that I do not see sufficiently emphasized is the fact that plants need to be gradually acclimated to the intense solar radiation, not unlike us having a suntan before we can spend too much time outdoors. I set my trees out in a shady spot initially and every couple of days a pull them further out of shade to increase the length of time they are exposed to sun.
• Lemon trees are thirsty in the sun, but they need very little watering when we just winter them through. Do not overwater! It is a death sentence.
• I use the commercially available lemon and cactus potting mix initially, and later add organic fertilizers and compost couple of times a year. Be mindful of the pH of the soil.
• Never pot them in too big of a pot, for the soil will be too damp and unhealthy. Increase pot size incrementally, with a 2 inches larger pot
If you wonder, why on earth would anyone spend this much attention on a tree, you never smelled lemon flowers.