andy wrote:

Had these trees for 3 years in nice big clay pots, 1- dwarf lime,
1-dwarf orange and 1 regular lemon. No fruit at all though they
continue to grow healthy. Do they need to be around trees of opposite
sex? When I bought them they all had like 1 fruit on them..that was
the last I've seen of them.
Email response if you can. Thanks
Andy

Actually, citrus can be "heavy feeders", requiring frequent light
feeding when grown in containers. This is because their
requirement for good drainage means nutrients leach out of the
potting mix.

Feed lightly once a month. Water first, then feed, then water
again. NEVER feed when the pot is dry!! Use a commercial citrus
food.

However, current citrus foods lack zinc, which citrus needs. Try
to get some zinc sulfate and add about a tablespoon with each
feeding. A lack of zinc in the soil can cause bud drop before
flowers open. (This is also a problem with gardenias.)

See my http://www.rossde.com/garden/dwarf_citrus.html.

--
David E. Ross
Climate: California Mediterranean
Sunset Zone: 19 -- interior Santa Monica Mountains with some ocean
influence (USDA 10a)
Gardening pages at http://www.rossde.com/garden/