Fertilizing Biriba/Rollinia

[roblack]

Hello everyone. I have a biriba/rollinia tree in-ground that is probably 9 feet or more. It has what appear to be a few tiny flowers starting to pop out, first time it has flowered. Almost all of the leaves have recently dropped, has to be from the cold spells. Is it a good idea to fertilize now or should I just leave it be? It has been about 3+ months since last fertilization. Thanks!

[roblack]

[Doug]

With my biriba trees it's been normal for them to lose most of their leaves from time to time. I have never fertilized my trees. They seem to have wide reaching root systems to find whatever nutrition they want, I suppose. I even have one very large old tree that is almost completely shaded, and it produces a good number of big wonderful fruit.

[roblack]

Thanks Doug. That makes me feel better about doing nothing, which isn't always easy.

[fruitlovers]

They're semi decidious. Might still be a good idea to give it a shot of fert as i notice with mine that when they drop most of their leaves is when they start to flower and fruit. So that is the time when they need food the most.

[roblack]

what do you hit them with Oscar?

[fruitlovers]

what do you hit them with Oscar?

Use a high nitrogen fertilizer. If you want to go organic use chicken manure or compost. If you want to go synthetic use ammonium sulfate or urea.