I bought a small potted fruiting fig tree that I took indoors over the winter. It grew leaves and three fruits starting in February. Last week during the warmer weather I started putting the tree outdoors during the day. I left it out in the full sun for the whole day I kept it indoors yesterday during the cold. Last night I noticed all the leaves had turned brown! Did it get sun-burn? Is it a rust?
The fig was most likely brought outside too soon and was damaged during the cold snap.
You might be interested in this information from the Missouri Botanical Garden:
Figs are best grown in organically rich, moist, well-drained soils in full sun to part shade. Figs may be grown in protected locations in USDA Zones 6 and 7 (e.g., against south-facing walls) with root mulch, but plants will usually show significant die back in cold winters. When temperatures in winter dip below 15 degrees F., consider additional protection for outdoor plants to the extent possible (e.g., clear plastic sheets or frames). In USDA Zones 5 and 6, figs can be grown as low-branching shrubs that are “laid down” in winter (branches are bent over and covered with soil with soil also mounded over the main trunking). Many fig cultivars are now available, with ‘Brown Turkey’ and ‘Chicago Hardy’ being noted for having unusually good winter hardiness. Water regularly during the growing season but reduce watering in fall. Containers must be brought indoors in winter. Large containers may be overwintered in greenhouses, garages or basements.
No serious insect or disease problems. Watch for root knot nematodes, scale, aphids, mealybugs and spider mites. Leaf spots, rust and blight may occur. Fruit can become a mess if not promptly harvested.
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