Fruits at 2-6 years old at 18"+ tall, mature trees are likely freeze tolerant to the mid 20's. Pleasant mild berry flavor that tastes a bit like artificial sweetener. The berry is grown for miraculin, a protein contained that changes the consumers taste buds for 30-60 minutes where everything sour tastes sweet. One can eat a lemon like an orange without puckering. Many growers frezze the fruit and eat one before eating another fruit that was picked a little early or is naturally tart. Host a fun "flavor tripping party" with friends and family and pass around different sour fruits to every one's amazement. 2 berries needed typically for effects.