Advocado Plant

It took me nearly six or seven weeks to get this advocado pit to sprout a root in water then several more to see the first shoot appear after planting the pit in soil It's very unlikely that this plant will ever produce any fruit due to Englands colder climate but the other day I thought a day out in the sun wouldn't do any harm. How wrong could I be, as you can see some low ass loved up creepy crawly has disfigured one of the leaves with two perfect heart shapes. Grrrr