You can purchase specific potting mixes for citrus, or if you want to make your own opt for a combination of homemade compost mixed with the likes of vermiculite, peat moss or coco coir. Citrus trees want a well-draining mix with a slightly acidic soil pH of between 6-6.5. To grow a lemon tree indoors, use a large container of at least 12-15 inches in diameter and fill with a citrus-specific potting mix. In addition, the temperature should be consistently between 55-85˚F to promote healthy growth.’Ī lemon tree in a container growing indoors How to care for a lemon tree indoors

Tony O'Neill, an experienced gardener and author, recommends: ‘An ideal location for growing lemon trees indoors is near a south-facing window with ample sunlight. Ensure to keep the plant away from air conditioning or sources of great heat, such as a heating duct, as extreme fluctuations in temperatures can damage the tree. The likes of a sun room or enclosed porch is ideal, while smaller lemon trees can succeed on bright window sills.

Place the lemon tree in a light and sunny spot in the household – choose a spot that gets plenty of natural sunlight. An example of a full spectrum LED grow light that would benefit lemon trees is the LORDEM Grow Lights available at Amazon that has an extendable tripod stand. Not giving citrus trees the right amount of light they need is a common problem when growing citrus inside and artificial lights can go some way to solving this issue. This is likely necessary during the winter months. Lemon trees want 10-12 hours of sunlight, which can be supplemented with artificial grow lights if required.

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