Do lime trees need another lime tree to pollinate them to grow fruit?
Some Limes don’t self-pollinate as easily as others, or just won’t, though some retail plants are sold as 2 different plants, grafted onto 1 root stock plant, which gets around this issue. Citrus plants benefit from specialist citrus fertiliser, as these contain the right blend of all the micro-nutrients that citrus plants need in order to grow well, including helping to set fruit. Likewise, if you re-pot it, you can get a special potting soil/compost tailored for citrus fruits – this will help as you go forward, if you don’t need to report it, this is worth remembering for future. Avoid excesses of temperature changes, as this can stress to Limes, causing them to have leaf fall, as well as fruit drop/failure to set fruit. If you have no insects around to pollinate your plant, then you could use a small paintbrush to transfer pollen between flowers – this would work if it’s flowering indoors, though I not that yours is currently outdoors – again this is worth a try outdoors too. Althou
